A Time Domain Radar Signal Imaging Algorithm Based on the Characteristic Points of the Direct Wave Signal of the Transceiver Antenna

Time domain signal imaging algorithm has always been a difficult technology in time domain radar research. Aiming at the key problem of target echo signal time information extraction. An innovative imaging algorithm based on the characteristic timing point of the direct wave signal of the transceiver antenna is proposed by combining the algorithm with the experiment. It includes time alignment, amplitude normalization, phase correction, phase correction and other steps. Cumulative average noise reduction, digital filtering, time- varying amplification, etc. Finally, the imaging algorithm software is compiled; In the experimental test, the target imaging image is clearer than that reported in the literature, which provides a valuable reference scheme for further research on time-domain signal imaging algorithm.