C4iSR: Air

International companies advance C-UAS technologies

24 September 2019

The A400 series radar has been updated to offer improved UAS-detection performance. Source: Blighter Surveillance Systems

Companies in the counter-unmanned aircraft systems (C-UASs) domain are pursuing advances in radar technology to detect smaller systems at greater ranges.

The theme was central to the new systems displayed by several companies at the 2019 Defence and Security Equipment International (DSEI) exhibition, which was held in London in mid-September, with several companies outlining recent advances on the detection side to Jane's .

UK-based Blighter Surveillance Systems, for example, announced new enhancements to its A400 series C-UAS air-security radar, which is designed to make it better able to detect and report low, slow, and very small UASs up to 3.6 km away.

The newly upgraded radar has been optimised in several areas, notably through the addition of 40° antennas, according to Nick Booth, vice-president of marketing at Blighter. The new U40 antennas give the radar a wider field of view (FOV), which Booth asserted "enhances situational awareness around the site where malicious activity might be taking place".

Booth said a key demand from operators today is the need to not only detect UASs, but also other air or land vehicles. The newly enhanced radar will also boost this capability.

"If the operator is driving up in a car, parking and getting out, and then connecting the controller to the drone, actually having awareness of that is very important," he explained.

The new antennas widen the system's vertical elevation coverage from 30° to 40°. The A400 radar has also been upgraded with Digital Drone Detection (D3) technology with sensitivity boost, which allows the micro-Doppler electronic-scan system to better extract the small radar reflections from modern plastic-bodied UASs, even when flying near the ground or close to buildings where clutter reflections are relatively large.

The newly upgraded radar is available as an upgrade for existing customers, he said, with one NATO country already trialling the technology.

Want to read more? For analysis on this article and access to all our insight content, please enquire about our subscription options at

(328 of 728 words)