Cambridge Sensoriis unveils advanced capabilities for ARC System

The radar technology specialist, Cambridge Sensoriis, has extended the capabilities of its proprietary Active Radar Cooperating (ARC) system.

ARC capabilities can be easily integrated onto a UAV Credit: Cambridge Sensoriis

Using direct radar range measurements between multiple ground and airborne radar devices, the company’s low SWaP radar system delivers improved precision and reliability for UAV operations in the most challenging environments, including adverse weather, poor visibility, low light conditions and GNSS-denied scenarios.

The latest iteration of ARC supports radar-based “tethering,” a cutting-edge feature that allows UAVs to autonomously track and follow moving vehicles without needing satellite navigation. By utilising localisation data from ARC’s standalone radars, UAVs can maintain a fixed position and altitude directly above a moving vehicle or platform. This innovation is suited for Intelligence, Surveillance, and Reconnaissance (ISR) missions, as well as search-and-rescue operations.

Other advanced capabilities include safe, autonomous landings on moving or unstable platforms. ARC’s built-in technology dynamically compensates for roll, pitch, and yaw movements in real time, providing the stability and resilience needed for mission critical operations such as landing on a ship in rough seas.

ARC also supports zonal position hold capabilities and complex UAV manoeuvres such as 360-degree turns without relying on any other sensors.

The ARC system comprises three or more radar devices: a primary unit mounted on the UAV and a network of secondary units installed on a landing pad or moving target. The system captures and processes highly accurate information, including range (accurate to within one centimetre), elevation, azimuth, altitude, and identification. The system currently operates over a range of 120 metres, with plans to extend this in the future.

ARC also features a small form factor (120 x 120 x 45 mm for ground devices and 78 x 60 x 20 mm for onboard UAV components). It is lightweight, with ground devices weighing approximately 300 grams and onboard components just 30 grams.

With a low power consumption of under 5 watts (12V DC supply), ARC can be integrated seamlessly onto any UAV type via API or MAVLink Protocols, supporting both ArduPilot and PX4 platforms.

Sensoriis is actively engaging with regulatory bodies to ensure its technology complies with current spectrum usage standards and is pursuing DO-365/366 certification.