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By:

Commodore S.L. Deshmukh

31 October 2024 at 8:30:19 am

The Beam That Blinds the Drone

As cheap drones reshape the battlefield, India’s T-SHUL BEAM points to a future in which electronic warfare may matter as much as firepower The drone has definitively become the weapon of choice for the modern battlefield. Cheap, expendable and increasingly autonomous, unmanned aerial vehicles can now threaten troops, armour, airfields and critical infrastructure without requiring the attacker to risk a pilot. Their proliferation has created a corresponding demand for counter-drone systems...

The Beam That Blinds the Drone

As cheap drones reshape the battlefield, India’s T-SHUL BEAM points to a future in which electronic warfare may matter as much as firepower The drone has definitively become the weapon of choice for the modern battlefield. Cheap, expendable and increasingly autonomous, unmanned aerial vehicles can now threaten troops, armour, airfields and critical infrastructure without requiring the attacker to risk a pilot. Their proliferation has created a corresponding demand for counter-drone systems that can respond quickly and at a cost proportionate to the threat. This is where beam-based anti-drone technology enters the picture. Broadly, such systems fall into two categories. Hard-kill systems use concentrated laser energy to physically damage or destroy a drone. Soft-kill systems, by contrast, use radio-frequency or electromagnetic energy to disrupt the electronic links that allow a drone to communicate, navigate and transmit information. Sophisticated Weaponry Hard-kill laser systems focus an intense beam of light on a vulnerable part of an incoming UAV - its carbon-fibre structure, control surfaces, battery or other critical components. The concentrated energy rapidly heats the target, potentially burning through its structure or disabling optical sensors and bringing the aircraft down. India’s DRDO has demonstrated a 30kW laser system, while Israel’s Rafael has developed the Lite Beam system. Soft-kill systems take a different route. Rather than physically destroying the aircraft, they interfere with the electronic architecture that keeps it airborne. Directional radio-frequency energy can disrupt command-and-control links, video feeds, telemetry and satellite-navigation signals such as GPS or other GNSS services. Depending on the drone and the nature of the disruption, the aircraft may be forced to land, return to its launch point or lose control. It is in this category that the T-SHUL BEAM system developed by Indian defence company IG Defence deserves attention. T-SHUL BEAM is a man-portable, directional counter-drone system designed for tactical deployment. Its multi-band radio-frequency architecture is intended to target several of the links on which unmanned aerial systems depend, including command-and-control, telemetry, video transmission and GNSS navigation. Its directional configuration allows an operator to concentrate electronic countermeasures on a particular aerial target rather than indiscriminately radiating energy across a large area. That matters on a battlefield where the warning time against a small UAV or first-person-view drone may be measured in seconds. The appeal of such a system is therefore not simply that it can counter a drone. It is that it can potentially bring counter-drone capability closer to the soldier and to the tactical edge. Large counter-UAS installations have their place, particularly around fixed and high-value assets. But forward units require systems that can move with them, be deployed rapidly and operate against small, low-cost unmanned platforms without imposing the logistical burden associated with conventional weapons. The T-SHUL BEAM’s significance also lies in its proposed integration with an artificial-intelligence-enabled battle-management architecture. IG Drones, the original equipment manufacturer, has stated that T-SHUL BEAM has been integrated with GRID, its indigenous AI-powered platform. The GRID architecture is intended to bring sensors, intelligence systems, unmanned platforms and command elements into a common operational framework. The attraction of such integration is obvious. Countering drones is increasingly less about a single weapon and more about the speed of the kill chain: detecting a threat, identifying it, deciding what response is appropriate and directing that response before the target disappears. An AI-enabled command architecture can potentially improve situational awareness, facilitate real-time threat detection and coordinate different systems operating simultaneously. This is particularly relevant as drone warfare evolves from isolated attacks towards increasingly complex and potentially swarming operations. A battlefield crowded with drones cannot be managed effectively if every sensor and weapon operates as a separate island. The advantage will increasingly belong to forces capable of turning disparate streams of information into a coherent picture and responding at machine speed. The T-SHUL BEAM’s reported demonstration at Pokhran represents another step in India’s attempt to build a domestic ecosystem spanning drones, counter-drones, artificial intelligence and electronic warfare. Counter-drone warfare is likely to be a recurring requirement rather than a niche capability. Importing every component of such an ecosystem would leave India vulnerable to supply-chain disruptions, technology restrictions and foreign-exchange pressures. Indigenous development, even when undertaken by relatively small private-sector companies, can broaden the country’s technological base and give the armed forces greater freedom to adapt systems to their operational requirements. Economics of the Contest Yet the real measure of any counter-drone system will ultimately be operational rather than promotional. Electronic warfare is inherently a contest between countermeasure and counter-countermeasure. Drone designers can alter frequencies, communications protocols, navigation methods and levels of autonomy. A system that is effective against one generation of drones may require modification against the next. The battlefield, in other words, will remain a technological arms race. The economics of the contest nevertheless favour directed-energy and electronic-warfare solutions. A conventional interceptor expends a missile or projectile against each target. A beam-based system can, subject to its power supply, engagement envelope and other operational constraints, engage targets without expending conventional ammunition. The marginal cost of an interception can consequently be dramatically lower. The beam also travels at effectively the speed of light, removing the flight time associated with kinetic interceptors. In densely populated areas or around sensitive infrastructure, bringing down a drone with a projectile can create its own hazards. Electronic disruption, when properly controlled, offers the possibility of neutralising the threat without sending an interceptor crashing back to earth. These advantages should not obscure the limitations. Soft-kill systems depend on the vulnerabilities of the target’s electronic architecture and may be less effective against increasingly autonomous drones that require fewer external communications. Weather, range, power availability, frequency management and the sophistication of an adversary's electronic countermeasures can all affect performance. No single technology is likely to provide a complete answer. The future of counter-drone warfare will therefore belong not to the beam alone but to layered defence combining. The emergence of systems such as T-SHUL BEAM suggests that India is beginning to build the technological pieces of that architecture at home. (The writer is a retired naval aviation officer and a defence and geopolitical analyst. Views personal.)

Lost in Transport

Minal Sancheti
May 10
4 min read

Mumbai’s grand transport infrastructure is undermined by potholes, Poor discipline and a last-mile gaps that keeps it crawling

Mumbai: It is morning time, and Pawan Khandelwal is all set to leave for

work. A creative lead at an ad agency in Malad, Mumbai, Khandelwal should

take 12 to 15 minutes to reach the office, but that rarely happens because of

the traffic, poor road quality and lack of civic sense among co-drivers on the

road. He mostly ends up reaching the office in 30 to 40 minutes.


Khandelwal firmly believes that road construction is not a major issue for

traffic. “The road under construction is not a big issue because they usually

don’t take very long to repair the roads. But even after their work is done, it

is not done perfectly. At times when they are digging up the road for other

purposes, they often leave a bump or a pothole,” he said.


He gives an example, “One can see it on the western express highway. There are so many bumps. We call it a highway, but we can’t even drive at 15 km/h because it is not fixed properly.” He also blames people for not following traffic rules, which adds to the problem.


Traffic Woes

Although there are coastal roads and metros available, the traffic still seems to

be a problem for many residents. A media professional and a daily commuter, Charlene Flanagan has been travelling in Mumbai for many years now. There

is not much difference in her experience of the traffic congestion. From her experience, she believes the coastal roads and metros have not completely

accomplished the mission of curbing traffic congestion. She says, “As a resident

of Mumbai and as a person with a valid driver’s licence, I would say the

traf f ic hasn’t really changed. It is still as congested, and whether the

coastal roads have helped depends on the time of the day you leave and whether

you are going against the traffic or along with the traffic.”


The pedestrians also face problems. Saloni Mehta, a theatre artiste, says, “I prefer walking to my destinations. For example, I live in Versova, and if I want to see a play in the Prithvi Theatre, I will take a half-hour walk. However, this one time, I could not

reach the venue, not just because of the traffic but also because there were no pavements left to walk on. The roads are dug up, and every road is just half a road.”


Mumbai’s average speed covered is 5.2 km per 15 minutes. During the peak traffic hours in the morning, when most people travel to their workplace, the average speed is 18.5 km/h.


It is important to understand the issue and address it with a solution. Sudhir Badami, an author of the book ‘Matter of Equitability - Making Commuting in Mumbai Enviable’, explains why people still prefer to use cars over metros, “The metro line 3

has definitely taken away some car users. But it has not taken away sufficient

numbers of car users to make a difference in the state of road congestion. The reason behind this is essentially the last-mile connectivity in areas where the Aqua Line or

Line 7 operates, especially in suburban areas. In the city area, it is supported by good BEST services on the one hand, and taxis being available near the metro stations on the other hand. But most car users still opt for using their cars, as public transport currently does provide assured exclusivity, comfort and good frequency, not forgetting last mile connectivity.


The Coastal Road sees very few cars compared to the number of cars on Mumbai’s Roads. Badami, as a transportation analyst, says, “Mumbai has approximately 16 Lakhs motor cars, out of which only about 55,000 seem to be using coastal roads. It is

such a minuscule proportion for whom so much has been spent. This is largely

because in the city, people don’t go from one end of the city to the other end. They normally start from in between and go somewhere in between. If there is not much time saving for the shorter stretches, then people are not likely to take it, and there will be continued congestion on city roads.”


“In general, the necessity of the last-mile connectivity is an important part, but the greater part will be how to get car users onto the public transport,” says Badami. Public transport must provide near exclusivity, comfort and safety to a car-using commuter for migration to take place. This is where the importance of last-mile connectivity is felt.


Air Pollution

The slow-moving traffic also adds to the air pollution in the city several times more than when they are moving at optimum speeds, he says.


Joint Commissioner of Police (Traffic), Mumbai, Anil Kumbhare, denies that there is much traffic congestion in Mumbai as compared to five years back. He credits the coastal roads for curbing the traffic. He says, “Earlier, there used to be bumper-to bumper traffic near Haji Ali. That has come down drastically. As coastal roads shape, the traffic will go down.”


He also adds that there is traffic congestion in the morning hours as people are travelling for work. But there is no traffic jam. Although coastal roads have helped, there are still pockets of the city that face traffic congestion every day. This can be solved with careful planning and execution.

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