Analysis of micro-doppler effect in SIMO radar

SIMO (Single Input Multiple Output) radar system capitalizes on the receiving diversity, so it can obtain more information about the target and highly improve the target recognition capability of radar. In this paper, the micro-Doppler effect induced by rotation and vibration parts of target in SIMO radar system which transmitting single frequency signal are deduced respectively. Both the micro-Doppler effect induced by rotation and vibration are sinusoidal curves, but their amplitude vary with the selection of different receiving radar. In addition, the translation of the target´s body will lead some horizontal shifts to the micro-Doppler curves with different value according to the selected receiving radar. Simulations are presented to validate the theoretic conclusions.