2RHPZ
08-30-2004, 08:42 AM
Hearing Impaired
Urban areas complicate military communications. To survive, forces must learn to intercept but not disrupt civilian networks.
by Ted McKenna
Aug. 12, 2004
The battlefield was once thought of as being a place apart, a deadly space where only the rules of war applied. Now it can be just around the corner. Consider a peacekeeping operation in a civil-war-torn country like Haiti or Sierra Leone, where civilian life may struggle on amid the ongoing warfare. Soldiers must destroy as little of the surroundings as they can, given the importance of the local population’s goodwill to the success of their mission (see IO in the Information Age’ - second post). But the vehicles, power lines, buildings, and all the other confusion of urban life play havoc with a key tool in waging war: communications.
Military forces may find when they enter urban areas that their radios no longer work because of surrounding noise and interference, and that the enemy, instead of being conveniently identifiable by a uniform, is hidden somewhere amid civilians who are either in collusion or totally unsuspecting. The communications the enemy uses, meanwhile, may not be traditional military communications networks, but the same cellular, satellite, landline, or other commercial networks that the rest of the populace uses, making intercepting or jam-ming communications correspondingly more complex. Addressing the needs of communications within urban areas has, therefore, become a priority for military planners who know that urban warfare will only continue to grow more common.
To begin with, urban areas obviously present more obstacles to forces attempting to communicate with one another as a result of buildings, towers, and other structures that obstruct signals; power lines and other sources of electromagnetic interference; and the presence of civilian networks upon which military frequencies should not be allowed to intrude. Buildings and other obstacles create the problem of “multi-path” signals, in which radio signals bouncing off surfaces at different angles criss-cross prior to being received, confusing the radios trying to pick up the signals and resulting in interference. Duane Schattle, deputy director of the US Joint Forces Command’s Joint Urban Operations Office, describes the situation as like the Verizon cell phone commercials in which an employee is walking around with a phone saying, “Can you hear me now?” There’s a reason he’s doing that. “You don’t see him out in the open areas doing that,” Schattle said. “He’s always in the urban areas. He’s in cities; he’s by cars; he’s by windows.”
With military communications, the situation is no different. In addition, another problem within urban areas is “noise,” noted Joe Schlesak, a research manager at the Communications Research Centre of Canada, a government organization that works with the Canadian Department of National Defence. Noise may be caused by power lines, building generators, car ignitions, and other sources of electromagnetic interference that create problems with radio communications, requiring greater signal transmission or receiver processing. Greater processing power within radios can, in fact, compensate for the multipath signals, sorting out the wheat from the chaff, while more powerful radios can be used to improve the “signal-to-noise” ratio. In addition, using a higher frequency also helps penetrate interference.
Recognizing the difficulties encountered by forces operating within cities, communications vendors are introducing new products intended to address the problems of urban noise and obstacles. Among the companies introducing new equipment, Harris (Melbourne, FL) introduced a handheld, ultra-high-frequency version of its Falcon II line of radios earlier this year that is designed to better handle the urban environment simply because higher frequency — though its range is less — better penetrates obstacles. Too high a frequency, though, and the range starts to suffer. Bill Glase, a Harris product manager, also noted that the use of radio repeaters within, say, an elevator shaft or the roof of a building, while not used just in urban areas, certainly can be of greater importance within cities because it aids communications that might otherwise be impeded by obstacles.
http://www.edefenseonline.com/article_images/eDef_08_13_2004_IF_01_img02.jpg
UK forces patrolling the streets of Basra, Iraq, must keep their eyes peeled for improvised explosive devices, rocket-propelled grenades, and other dangers coming from out of the blue. The trick is to react to threats without mistaking innocent civilians for armed persons. Communications, both for command and control and intelligence on enemy activities, is the patrol’s lifeline.
But apart from turning to this type of equipment, interference problems ultimately should also be corrected through new types of military communications networks such as the US Army’s planned Warfighter Information Network - Tactical (WIN-T), which will help forces stay in touch with one another by more flexibly relaying data or other communications among the different users in a network. Say one squad can’t speak directly to another because of some interference; an Internet-like radio network could bounce communications from one point to another until the communications are able from some direction to reach their intended recipient. Such a network also accommodates the kind of data transmission that militaries now want for exchanging friendly and enemy location information and more, and will require new software for managing the allocation of bandwidth, so that the people most in need of communications can get the capacity they need.
Under Surveillance
Apart from communications for command and control, military forces must be effective at penetrating those of the enemy. But to do communications interception and jamming within urban areas, the problem is not just interference or noise. While military communications can be set so that they do not operate with civilian networks, as they probably would not in any case, the use of civilian networks by enemies within urban areas means forces must know how to infiltrate the networks, whether they themselves can operate on the frequencies or not. As a result, new types of military radio technology must be designed to deal with the higher frequencies on which civilian networks are likely to operate, according to Rod Brown, program manager for electronic warfare for Rockwell Collins Government Systems (Cedar Rapids, IA). “If you can’t go up to 2 GHz, you’re missing 90% of the communications signals that are there. And it wasn’t that way 10 years ago,” he said. “You also need to have special capabilities since civilian systems use frequency and time management differently than traditional military systems, so there’s some new algorithm design that’s required.” In addition, military operators obviously will need to be trained to work with such networks, Brown noted.
In a reverse from past decades, when the military tended to be the innovator in new technology and the commercial sector the benefactor, today — in the communications sphere, at least — commercial vendors lead the way in developing frequency hopping, spread spectrum, encryption, and other network characteristics that make interception more difficult. Militaries themselves benefit from the security that such technology provides them in their own radios, as well as from the development of software-defined radios like the Joint Tactical Radio System in the US, which should allow operators of different types of radios, even those on different frequencies, to turn a knob and communicate with the other person.
But the new technology also benefits enemy combatants using commercial networks like cellular, which they may use to trigger an improvised explosive device (IED) to take out a passing land convoy, for instance. Encryption and frequency hopping make it tougher for military forces to track down the enemy. The chips within cellular phones can be reprogrammed for different phone numbers — even multiple numbers. Rather like battling the multi-headed Hydra of Greek mythology, lopping off or intercepting one particular phone signal still leaves the others hissing. Cutting the creature off at the neck, though, may not be feasible. Jamming such signals presents a major dilemma for militaries, since they want to prevent networks being used to set off bombs or otherwise hurt them, but they do not want to completely jam the network, raising the ire of the local populace, impeding authorities from coordinating emergency responses, and so on. Must the entire communications network be shut down, as reportedly happened during the March 11 bombings in Madrid, Spain, when authorities knew communications signals were being used to set off explosives? Planners of military operations within urban areas hope not.
http://www.edefenseonline.com/article_images/eDef_08_13_2004_IF_01_img03.jpg
Military trucks dedicated for communications intelligence, like the US Army Trailblazer vehicle shown here, won’t do in urban environments, where successful eavesdropping requires getting as close to the subjects as possible. Less noticeable to civilians, commercial vans equipped with the necessary equipment better allow forces to track down insurgents.
Though vendors don’t like to say exactly how their products can intercept or jam communications signals, assuredly they offer the capability. One key point made by Nati Catran, vice president of marketing and sales at Elisra Group (Bene Baraq, Israel), is that jamming is a lot simpler to do than interception and is, therefore, the more likely action to be taken by military forces looking to thwart enemy communications over whatever network they may run and in whatever form they may take. And the enemy may communicate in many ways, from cellular to satellite to traditional landlines to voice-over-Internet Protocol (VoIP) communications. With the latter form of communications, any Internet connection could be used as a conduit for voice calls, and tracking down the IP address could be as tricky as locating a computer hacker. Thus, communications experts trying to pinpoint exactly where an insurgent may be based on IP address, which could be mobile, face a big challenge.
I Spy
As a result, human intelligence becomes correspondingly more important in urban areas than in more “traditional” battlefields, if only because of the plethora of new communications links, according to an electronic-warfare (EW) expert at Thales Land & Joint Systems (Neuilly-sur-Seine Cedex, France), which makes various kinds of equipment for interception and jamming. This gives operators an idea of where to direct their attention. In an example of how human intelligence facilitates effective use of communications surveillance and interception within urban areas, the US military, working with local authorities in Colombia to track down the notorious drug trafficker Pablo Escobar, relied on human intelligence about the whereabouts of Escobar to direct where its communications-interception team would go. Some tip on where he was, or perhaps what phone number he was using — since he was aware of the surveillance and switched his phones constantly — was needed before the communications-interception team could mobilize. Given that millions of perfectly innocuous communications clog the airwaves in urban areas, interception will nearly always require a cell-phone number, a geographical location — some type of clue for operators of communications-interception equipment to find a person.
Jamming signals within a certain range — say, several hundred meters — is more feasible and is increasingly being done for protecting land convoys against IEDs, for instance. In light of the dangers faced by troops in Iraq, various companies are supplying new products for jamming communications in such situations. EDO Corp. (New York, NY) is supplying the US Army with communications jammers for use in Iraq, and Thales last year introduced a product called the Flexible Light Electronic Attack System, which can be used to counter communications signals of various frequencies, as well as intercept signals for the purpose of surveillance. Not just forces in Iraq face IEDs, of course; the president of Pakistan was reportedly saved from one thanks to a jammer. The Border Security Forces of India, too, reportedly developed a jammer of their own that is effective at up to 100 meters.
http://www.edefenseonline.com/article_images/eDef_08_13_2004_IF_01_img04.jpg
The airborne elements of a fighting force can serve as relays for communications for squadrons within a city, for instance, and remote commanders. With military operations becoming increasingly joint in nature, radio systems like the Joint Tactical Radio System are being developed that can operate on multiple frequencies, tying together forces that might otherwise be unable to communicate directly with one another.
Intercepting or jamming civilian communications not surprisingly means adopting some of the same technology and techniques used in non-military communications situations. Elisra Group’s Catran said an example of this might be Telecommunications Ministry employees whose job includes nabbing airwave pirates — people or businesses like taxi-cab services that use airwaves of whatever frequency without paying licensing fees. Unmarked vans, like the kind featured in movies about CIA or police stakeouts, are used to transport and serve as a base for operating the monitoring equipment. If military operations within urban areas are to be successful, soldiers must also use unmarked vehicles for their equipment.
“If you want to talk about the conversion of the battlefield into what we call the asymmetric, you’re trying not to alarm your enemy, which might be civilian-wearing as well,” Catran said. “So the equipment you are using and the vehicle you are driving should not be suspicious. Go there with your green cars, with a military shelter, or a command car or armored personnel carrier, and immediately all the world will stand in the street and clap their hands. It’ll be an Independence Day parade. On the other hand, you can just put this equipment into those commercial cars, disguise them, and use them for the same operations you’re doing in daily life.”
Because of encryption, intercepting communications is far more difficult than jamming them. Here, Elisra Group’s Catran noted, one comes to an area that is endless. Certainly, military and other types of communications experts can decrypt signals, but it is not necessarily easy. Breaking into encrypted communications is a highly mathematical, complex process, and within the commercial communications world, manufacturers are constantly looking to improve the security of communications for their customers. Enemy combatants utilizing civilian communications coincidentally benefit. Because of the extra effort required to decrypt communications, military forces are more likely to simply opt for interfering with or jamming their opponents’ communications. There may not be enough time to do more.
“You have to place your interest, priorities,” Catran said. “If you’re talking about a strategic requirement, and you have the time, you can take communications and decrypt, encrypt, do whatever you want. But if you are in an operation, a tactical situation, I believe the first priority will be triangulation, location, and identification of the network, and then the second or third priority, will be listening and understanding. In EW, there’s always counter and counter-counter. The question is, who has more money in order to go to the next step.”
Help From Above
Can satellites and unmanned aerial vehicles (UAVs) help, operating above all of the city clutter? Satellites certainly provide a good means of collecting imagery about a particular location and, through new projects, may even someday be able to track moving objects through networks of satellites. They also sometimes are the most reliable form of communications to commanders on the ground, who — when their radio networks are not working properly — have been known in a pinch to call their headquarters half a world away by satellite to order indirect fire.
In addition, intelligence agencies — including the US National Security Agency and its equivalents in the UK, France, Australia, and other countries — have long been known to have the ability to tap into not just landline-related communications — submarine cables, for instance, or cell-phone towers — but also satellite communications. They can simply sift through communications passing through the air and, thanks to software, designate certain key words — a person’s name or a certain place, for example — that, automatically detected by computer systems, informs human analysts to listen in to that particular bit of communications. This is not a function that specifically relates to military operations in urban areas, but it certainly can help in tracking down important communications in urban areas, where enemy combatants may be more likely to be use civilian communications networks.In terms of communications interception and jamming, however, the primary ability of satellites and UAVs is their ability to geolocate, whether because of Global Positioning System chips within a user’s phone, or because UAVs can be used in conjunction with ground assets and radio towers to determine the location of a communications signal based on a process called triangulation. On the flip side, though, the reliance placed by militaries today on satellites for tracking positions, directing munitions, and more makes communications a potential weakness to be exploited by enemies, if they can. The Iraqi military during the first phase of Operation Iraqi Freedom, the US-led invasion and occupation of Iraq, reportedly attempted to jam US communications, but given Iraqi’s highly second-rate military capabilities, the jamming attempt not only didn’t help, but it actually gave coalition forces signal emissions against which to target their bombs. Would a better-equipped enemy have more luck jamming communications? “The past few engagements, we’ve basically been fighting against fourth-tier militaries,” said John Edwards, space-systems analyst for Forecast International (Newtown, CT). “But if you go up against a country like China or the like, yes.”
The reliance on communications to do everything from target and transmit information, gain situational awareness of friendly and enemy forces, and operate a mix of sensors from on the ground to below ground to overhead thus becomes a potential weakness, making the security of the network that much more important. How secure can the opposing forces make their respective communications? The outcome of the conflict may depend on the answer.
Urban areas complicate military communications. To survive, forces must learn to intercept but not disrupt civilian networks.
by Ted McKenna
Aug. 12, 2004
The battlefield was once thought of as being a place apart, a deadly space where only the rules of war applied. Now it can be just around the corner. Consider a peacekeeping operation in a civil-war-torn country like Haiti or Sierra Leone, where civilian life may struggle on amid the ongoing warfare. Soldiers must destroy as little of the surroundings as they can, given the importance of the local population’s goodwill to the success of their mission (see IO in the Information Age’ - second post). But the vehicles, power lines, buildings, and all the other confusion of urban life play havoc with a key tool in waging war: communications.
Military forces may find when they enter urban areas that their radios no longer work because of surrounding noise and interference, and that the enemy, instead of being conveniently identifiable by a uniform, is hidden somewhere amid civilians who are either in collusion or totally unsuspecting. The communications the enemy uses, meanwhile, may not be traditional military communications networks, but the same cellular, satellite, landline, or other commercial networks that the rest of the populace uses, making intercepting or jam-ming communications correspondingly more complex. Addressing the needs of communications within urban areas has, therefore, become a priority for military planners who know that urban warfare will only continue to grow more common.
To begin with, urban areas obviously present more obstacles to forces attempting to communicate with one another as a result of buildings, towers, and other structures that obstruct signals; power lines and other sources of electromagnetic interference; and the presence of civilian networks upon which military frequencies should not be allowed to intrude. Buildings and other obstacles create the problem of “multi-path” signals, in which radio signals bouncing off surfaces at different angles criss-cross prior to being received, confusing the radios trying to pick up the signals and resulting in interference. Duane Schattle, deputy director of the US Joint Forces Command’s Joint Urban Operations Office, describes the situation as like the Verizon cell phone commercials in which an employee is walking around with a phone saying, “Can you hear me now?” There’s a reason he’s doing that. “You don’t see him out in the open areas doing that,” Schattle said. “He’s always in the urban areas. He’s in cities; he’s by cars; he’s by windows.”
With military communications, the situation is no different. In addition, another problem within urban areas is “noise,” noted Joe Schlesak, a research manager at the Communications Research Centre of Canada, a government organization that works with the Canadian Department of National Defence. Noise may be caused by power lines, building generators, car ignitions, and other sources of electromagnetic interference that create problems with radio communications, requiring greater signal transmission or receiver processing. Greater processing power within radios can, in fact, compensate for the multipath signals, sorting out the wheat from the chaff, while more powerful radios can be used to improve the “signal-to-noise” ratio. In addition, using a higher frequency also helps penetrate interference.
Recognizing the difficulties encountered by forces operating within cities, communications vendors are introducing new products intended to address the problems of urban noise and obstacles. Among the companies introducing new equipment, Harris (Melbourne, FL) introduced a handheld, ultra-high-frequency version of its Falcon II line of radios earlier this year that is designed to better handle the urban environment simply because higher frequency — though its range is less — better penetrates obstacles. Too high a frequency, though, and the range starts to suffer. Bill Glase, a Harris product manager, also noted that the use of radio repeaters within, say, an elevator shaft or the roof of a building, while not used just in urban areas, certainly can be of greater importance within cities because it aids communications that might otherwise be impeded by obstacles.
http://www.edefenseonline.com/article_images/eDef_08_13_2004_IF_01_img02.jpg
UK forces patrolling the streets of Basra, Iraq, must keep their eyes peeled for improvised explosive devices, rocket-propelled grenades, and other dangers coming from out of the blue. The trick is to react to threats without mistaking innocent civilians for armed persons. Communications, both for command and control and intelligence on enemy activities, is the patrol’s lifeline.
But apart from turning to this type of equipment, interference problems ultimately should also be corrected through new types of military communications networks such as the US Army’s planned Warfighter Information Network - Tactical (WIN-T), which will help forces stay in touch with one another by more flexibly relaying data or other communications among the different users in a network. Say one squad can’t speak directly to another because of some interference; an Internet-like radio network could bounce communications from one point to another until the communications are able from some direction to reach their intended recipient. Such a network also accommodates the kind of data transmission that militaries now want for exchanging friendly and enemy location information and more, and will require new software for managing the allocation of bandwidth, so that the people most in need of communications can get the capacity they need.
Under Surveillance
Apart from communications for command and control, military forces must be effective at penetrating those of the enemy. But to do communications interception and jamming within urban areas, the problem is not just interference or noise. While military communications can be set so that they do not operate with civilian networks, as they probably would not in any case, the use of civilian networks by enemies within urban areas means forces must know how to infiltrate the networks, whether they themselves can operate on the frequencies or not. As a result, new types of military radio technology must be designed to deal with the higher frequencies on which civilian networks are likely to operate, according to Rod Brown, program manager for electronic warfare for Rockwell Collins Government Systems (Cedar Rapids, IA). “If you can’t go up to 2 GHz, you’re missing 90% of the communications signals that are there. And it wasn’t that way 10 years ago,” he said. “You also need to have special capabilities since civilian systems use frequency and time management differently than traditional military systems, so there’s some new algorithm design that’s required.” In addition, military operators obviously will need to be trained to work with such networks, Brown noted.
In a reverse from past decades, when the military tended to be the innovator in new technology and the commercial sector the benefactor, today — in the communications sphere, at least — commercial vendors lead the way in developing frequency hopping, spread spectrum, encryption, and other network characteristics that make interception more difficult. Militaries themselves benefit from the security that such technology provides them in their own radios, as well as from the development of software-defined radios like the Joint Tactical Radio System in the US, which should allow operators of different types of radios, even those on different frequencies, to turn a knob and communicate with the other person.
But the new technology also benefits enemy combatants using commercial networks like cellular, which they may use to trigger an improvised explosive device (IED) to take out a passing land convoy, for instance. Encryption and frequency hopping make it tougher for military forces to track down the enemy. The chips within cellular phones can be reprogrammed for different phone numbers — even multiple numbers. Rather like battling the multi-headed Hydra of Greek mythology, lopping off or intercepting one particular phone signal still leaves the others hissing. Cutting the creature off at the neck, though, may not be feasible. Jamming such signals presents a major dilemma for militaries, since they want to prevent networks being used to set off bombs or otherwise hurt them, but they do not want to completely jam the network, raising the ire of the local populace, impeding authorities from coordinating emergency responses, and so on. Must the entire communications network be shut down, as reportedly happened during the March 11 bombings in Madrid, Spain, when authorities knew communications signals were being used to set off explosives? Planners of military operations within urban areas hope not.
http://www.edefenseonline.com/article_images/eDef_08_13_2004_IF_01_img03.jpg
Military trucks dedicated for communications intelligence, like the US Army Trailblazer vehicle shown here, won’t do in urban environments, where successful eavesdropping requires getting as close to the subjects as possible. Less noticeable to civilians, commercial vans equipped with the necessary equipment better allow forces to track down insurgents.
Though vendors don’t like to say exactly how their products can intercept or jam communications signals, assuredly they offer the capability. One key point made by Nati Catran, vice president of marketing and sales at Elisra Group (Bene Baraq, Israel), is that jamming is a lot simpler to do than interception and is, therefore, the more likely action to be taken by military forces looking to thwart enemy communications over whatever network they may run and in whatever form they may take. And the enemy may communicate in many ways, from cellular to satellite to traditional landlines to voice-over-Internet Protocol (VoIP) communications. With the latter form of communications, any Internet connection could be used as a conduit for voice calls, and tracking down the IP address could be as tricky as locating a computer hacker. Thus, communications experts trying to pinpoint exactly where an insurgent may be based on IP address, which could be mobile, face a big challenge.
I Spy
As a result, human intelligence becomes correspondingly more important in urban areas than in more “traditional” battlefields, if only because of the plethora of new communications links, according to an electronic-warfare (EW) expert at Thales Land & Joint Systems (Neuilly-sur-Seine Cedex, France), which makes various kinds of equipment for interception and jamming. This gives operators an idea of where to direct their attention. In an example of how human intelligence facilitates effective use of communications surveillance and interception within urban areas, the US military, working with local authorities in Colombia to track down the notorious drug trafficker Pablo Escobar, relied on human intelligence about the whereabouts of Escobar to direct where its communications-interception team would go. Some tip on where he was, or perhaps what phone number he was using — since he was aware of the surveillance and switched his phones constantly — was needed before the communications-interception team could mobilize. Given that millions of perfectly innocuous communications clog the airwaves in urban areas, interception will nearly always require a cell-phone number, a geographical location — some type of clue for operators of communications-interception equipment to find a person.
Jamming signals within a certain range — say, several hundred meters — is more feasible and is increasingly being done for protecting land convoys against IEDs, for instance. In light of the dangers faced by troops in Iraq, various companies are supplying new products for jamming communications in such situations. EDO Corp. (New York, NY) is supplying the US Army with communications jammers for use in Iraq, and Thales last year introduced a product called the Flexible Light Electronic Attack System, which can be used to counter communications signals of various frequencies, as well as intercept signals for the purpose of surveillance. Not just forces in Iraq face IEDs, of course; the president of Pakistan was reportedly saved from one thanks to a jammer. The Border Security Forces of India, too, reportedly developed a jammer of their own that is effective at up to 100 meters.
http://www.edefenseonline.com/article_images/eDef_08_13_2004_IF_01_img04.jpg
The airborne elements of a fighting force can serve as relays for communications for squadrons within a city, for instance, and remote commanders. With military operations becoming increasingly joint in nature, radio systems like the Joint Tactical Radio System are being developed that can operate on multiple frequencies, tying together forces that might otherwise be unable to communicate directly with one another.
Intercepting or jamming civilian communications not surprisingly means adopting some of the same technology and techniques used in non-military communications situations. Elisra Group’s Catran said an example of this might be Telecommunications Ministry employees whose job includes nabbing airwave pirates — people or businesses like taxi-cab services that use airwaves of whatever frequency without paying licensing fees. Unmarked vans, like the kind featured in movies about CIA or police stakeouts, are used to transport and serve as a base for operating the monitoring equipment. If military operations within urban areas are to be successful, soldiers must also use unmarked vehicles for their equipment.
“If you want to talk about the conversion of the battlefield into what we call the asymmetric, you’re trying not to alarm your enemy, which might be civilian-wearing as well,” Catran said. “So the equipment you are using and the vehicle you are driving should not be suspicious. Go there with your green cars, with a military shelter, or a command car or armored personnel carrier, and immediately all the world will stand in the street and clap their hands. It’ll be an Independence Day parade. On the other hand, you can just put this equipment into those commercial cars, disguise them, and use them for the same operations you’re doing in daily life.”
Because of encryption, intercepting communications is far more difficult than jamming them. Here, Elisra Group’s Catran noted, one comes to an area that is endless. Certainly, military and other types of communications experts can decrypt signals, but it is not necessarily easy. Breaking into encrypted communications is a highly mathematical, complex process, and within the commercial communications world, manufacturers are constantly looking to improve the security of communications for their customers. Enemy combatants utilizing civilian communications coincidentally benefit. Because of the extra effort required to decrypt communications, military forces are more likely to simply opt for interfering with or jamming their opponents’ communications. There may not be enough time to do more.
“You have to place your interest, priorities,” Catran said. “If you’re talking about a strategic requirement, and you have the time, you can take communications and decrypt, encrypt, do whatever you want. But if you are in an operation, a tactical situation, I believe the first priority will be triangulation, location, and identification of the network, and then the second or third priority, will be listening and understanding. In EW, there’s always counter and counter-counter. The question is, who has more money in order to go to the next step.”
Help From Above
Can satellites and unmanned aerial vehicles (UAVs) help, operating above all of the city clutter? Satellites certainly provide a good means of collecting imagery about a particular location and, through new projects, may even someday be able to track moving objects through networks of satellites. They also sometimes are the most reliable form of communications to commanders on the ground, who — when their radio networks are not working properly — have been known in a pinch to call their headquarters half a world away by satellite to order indirect fire.
In addition, intelligence agencies — including the US National Security Agency and its equivalents in the UK, France, Australia, and other countries — have long been known to have the ability to tap into not just landline-related communications — submarine cables, for instance, or cell-phone towers — but also satellite communications. They can simply sift through communications passing through the air and, thanks to software, designate certain key words — a person’s name or a certain place, for example — that, automatically detected by computer systems, informs human analysts to listen in to that particular bit of communications. This is not a function that specifically relates to military operations in urban areas, but it certainly can help in tracking down important communications in urban areas, where enemy combatants may be more likely to be use civilian communications networks.In terms of communications interception and jamming, however, the primary ability of satellites and UAVs is their ability to geolocate, whether because of Global Positioning System chips within a user’s phone, or because UAVs can be used in conjunction with ground assets and radio towers to determine the location of a communications signal based on a process called triangulation. On the flip side, though, the reliance placed by militaries today on satellites for tracking positions, directing munitions, and more makes communications a potential weakness to be exploited by enemies, if they can. The Iraqi military during the first phase of Operation Iraqi Freedom, the US-led invasion and occupation of Iraq, reportedly attempted to jam US communications, but given Iraqi’s highly second-rate military capabilities, the jamming attempt not only didn’t help, but it actually gave coalition forces signal emissions against which to target their bombs. Would a better-equipped enemy have more luck jamming communications? “The past few engagements, we’ve basically been fighting against fourth-tier militaries,” said John Edwards, space-systems analyst for Forecast International (Newtown, CT). “But if you go up against a country like China or the like, yes.”
The reliance on communications to do everything from target and transmit information, gain situational awareness of friendly and enemy forces, and operate a mix of sensors from on the ground to below ground to overhead thus becomes a potential weakness, making the security of the network that much more important. How secure can the opposing forces make their respective communications? The outcome of the conflict may depend on the answer.