Micro-doppler Detection and Estimation Based on DTV Broadcasting Signals
DTV广播信号的微多普勒检测与估计

Micro-doppler effect induced by non-uniform motion of mobile receiver via faraway DTV transmit station was analyzed based on multipath channel propagation characteristics. To accurately separate and extract micro-Doppler values of multiple signal components in DTV received signals,the support vector clustering (SVC) algorithm was applied. By using FRFT transform results of the received signal,clustering analysis was conducted,and synchronous detection and accurate estimation of multiple micro-doppler components was realized. The simulation results showed that the method proposed can separate,extract and estimate micro-doppler values of multiple signal components from different paths and different DTV transmit stations under single frequency network.