A Real-Time, Frame-Level Platform Vibration Compensation Approach for mmWave Radar Systems

Parasitic platform motion, such as vibration, significantly impairs the detection and tracking capacity of mm Wave radars. While prior work has addressed this issue via post-processing correction, we present a real-time approach to vibration mode suppression in the received signals, operating at the radar frame level and utilizing synchronized data from an auxiliary IMU to compensate the IF signal returns. The proposed frame-level deconvolution approach is robust across a range of system motion parameters, achieving 39 dB average suppression of the vibration-induced sidebands across vibration frequency and amplitude and 29 dB suppression across target velocity. These gains validate the frame-level technique's feasibility for real-time edge-based parasitic motion compensation.