Automotive & motorsport
Rush hOuR
On the test bench
Here, the experts at Rohde & Schwarz look at new instruments that enable radar test environments with virtually any desired complexity to be set up. They can be used along the entire development and validation path of sensors and radar based ADAS, including vehicle-in-the-loop tests of complete vehicles on a chassis dynamometer. As a result, these instruments make an important contribution to the safety of future vehicle generations.
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onboard radars a routine exercise. Many drivers like the convenience of
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adaptive cruise control and appreciate the benefits of collision warning systems. These advanced driver assistance systems (ADAS) get their environment data from radar sensors, which are being installed in ever- increasing numbers all over vehicles (Fig. 1). As security-related components, they must function flawlessly at all times and fully conform to specified performance data. Up to now this has not been easy to prove, despite the availability of radar echo generators that can be used to simulate simple sample scenarios. The development is
ncreasing autonomy and ever more sophisticated safety functions are leading to a rising number of sensors installed in vehicles. A new pair of instruments makes testing of
heading toward autonomous driving, and the situations that must be handled reliably by onboard electronics are becoming more and more demanding. Ultimately, the technology must fully replicate the cognitive abilities of a human driver. However, vehicle AI can only make trustworthy decisions if the underlying sensor data reflects the actual environment with the complexity and precision required for vehicle operation. This means that objects of different sizes, located at different distances and moving at different speeds, as typically found in urban situations (e.g. at pedestrian crossings or intersections), must be captured with sufficient reliability.
Only A TeSTeD RADAR iS A SAfe RADAR The required quality assurance of automotive radars includes acceptance
February 2022 Instrumentation Monthly
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