[2] CHEN V C, LI F, HO S S, et al. Micro-Doppler effect in radar: phenomenon, model, and simulation study［J］. IEEE Transactions on Aerospace and Electronic Systems, 2006, 42(1): 2-21.
[8] EDISON A R, MOORE R K, WARNER B D. Radar terrain return measured at near-vertical incidence［J］. IRE Transactions on Antennas and Propagation, 1960, 8(3): 246-254.
