The RTS Radar Test System overcomes several obstacles testing automotive radar systems used for Advanced Driver Assistance Systems (ADAS) and Autonomous Driving (AD) systems.
The number of on-board radars in vehicles is increasing; where, in the past, a single long-distance radar has been used to handle collision-warning and emergency-braking features, additional corner and sidewards-looking radar are now being incorporated to increase the vehicle’s awareness of its surroundings.
As a result, more scenarios need to be tested. These include situations such as other vehicles incoming at various angles and with high closing speeds.
On the other hand, testing these situations in laboratory conditions, using conventional equipment, has its own challenges. The usual way to simulate lateral-moving objects involves physically moving the antennas into different positions and repeatedly re-testing. This takes time, complicates testing, and increases wear and stress on components such as cables and connectors.
The R&S RTS provides a solution to these challenges. It is a target simulator that generates dynamic radar echoes that can be used at all stages of radar sensor testing, from pre-development through hardware-in-the-loop lab tests to validation of ADAS/AD functions integrated in the vehicle. Advantages:
– Complex radar test cases and driving scenarios with excellent reproducibility.
– Difficult, time consuming or dangerous physical tests can be simulated.
The antenna array frontend comprises multiple antennas and simulates the radar signature of a moving object by rapidly and automatically switching between them. There can be up to 192 independently switchable antennas to simulate objects moving laterally to the car’s direction of movement. Multiple frontends can be combined to cover larger fields of view of radar sensors. At the backend the radar echo generator can simulate a large number of independent artificial objects and dynamically vary their range, size, and radial velocity. With an instantaneous bandwidth of 4 GHz between 76 GHz and 81 GHz, it covers the typical frequency range of current and future automotive radar sensors.
Green tech award, sustainable features and innovations:
Simulating such situations during actual road testing is time-consuming and expensive, involving driving millions of test km’s in various environments and locations worldwide. The R&S RTS solution can do all the simulations in the lab which is an attribution to a cleaner and greener environment.