A Novel Calibration Method for Dual-channel Doppler Radar Sensor of High-speed Train

摘要

Based on the working principle of dual-channel Doppler radar sensor mounted at high-speed train, the shortcomings of the traditional calibration method for dual-channel Doppler radar sensor are analysed and a novel calibration method based on the dual Doppler shifts simulation method is proposed in this paper. A simulator is specifically designed and realized to verify the proposed novel calibration method. The simulated speed range of the simulator is up to (5~500) km/h and the MPE is ±0.05 km/h, which can fully satisfy the calibration requirements of dual-channel Doppler radar sensor. The calibration results of a selected sample validate the effectiveness and feasibility of the novel calibration method.