Key Benefits

To test the entire chain of effects, the radar test bench provides over-the-air stimulation of the radar sensor front end. The test bench allows a reliable multitarget angle simulation for up to 20 radar targets in real-time. The test bench essentially consists of an anechoic chamber with send/receive functionality, up to five calibrated dSPACE Automotive Radar Test Systems (DARTS), and a SCALEXIO HIL simulator. For the test, the radar sensor is locked into the chamber, where it is stimulated with the radar echoes. The concentric movement of the antennas returns information on their azimuth angle. If desired, the simulation can include the front bumper and chassis of the vehicle. This way, all the software and hardware layers can be taken into account, from detecting the signal at the front of the radar to evaluating it in the radar ECU. The coherent echoes allow for the radar ECU to reliably determine the distance and the velocity of the radar objects. Driving scenarios that are simulated with the Automotive Simulation Models (ASM) are the basis for this. The radar ECU is also connected to the HIL simulator via a vehicle bus for exchanging the list of detected radar objects with the simulation environment in closed-loop operation. The radar test bench supports radar sensors with 24, 77, and 79 GHz of any modulation scheme. It can be adjusted to individual requirements and operated synchronously with further radar test benches or with other test systems (camera, ultrasound, etc.).