Automotive Radar Precision Calibration with Compact Antenna Test Range

A full measurement system for automotive radar at 77GHz is presented in this study. Radar applications require particularly outstanding quiet-zone performance for its measurement uncertainty and calibration, especially at millimeter wave (mmWave) frequency range. Therefore, this system employs compact antenna test range (CATR) to generate its quiet zone. In addition, a Radar Test Simulator (RTS) is used to test DUT with broad ranges of distance and speed range. Software is also developed to coordinate with the hardware so the system is ready for commercial automotive radar test and calibration. An example design is also proposed in this paper to explain the whole system configuration and performance of a practical automotive radar test system.