Research on processing method of Ultra Wide Band radar echo signal

Ultra Wide Band radar life detection technology has been widely used in life detection in various scenes because of its high life detection accuracy, but it is difficult to extract vital signs in the process of echo signal processing because of scene noise.Therefore, a research on the processing method of UWB radar echo signal is proposed.The mean band-pass filter is used to remove and enhance the background noise of vital signs in UWB echo signal, and the vital signs signal is located by combining energy moment calculation. In order to improve the accuracy of vital sign signal extraction, and according to the linear characteristics of vital sign signals, an adaptive EWT algorithm is proposed by combining Pearson correlation coefficient with high computational efficiency and EWT algorithm with strict mathematical basis and no modal aliasing and endpoint effect problem, then the located vital sign signals are further filtered and extracted by this algorithm.Finally, the effectiveness of the proposed method is verified by experiments.