Abstract:Based on the equivalent scatter center model, the relationship between the micro-Doppler frequencies and the motion parameters of the space cone target with precession or nutation is analyzed. Due to the complicated form of the micro-Doppler frequency mentioned above, an approach to separate the micro-Doppler frequency curve of each equivalent scatter center in the Time Frequency Distribution (TFD) of target echo is proposed in this paper. In this method, classical Short-Time Fourier Transformer (STFT) is first used to obtain the TFD of the target echo; then the Multiple Target Tracking (MTT) algorithm is applied to track the micro-Doppler frequency curves in the TFD, which are assumed to be the tracks of maneuvering targets. Thus the micro-Doppler frequencies of each equivalent scatter center are extracted via the method. In the simulation experiments, the performance of the proposed method is evaluated via the electromagnetic computation simulated data.
邵长宇, 杜兰, 李飞, 刘宏伟. 基于多目标跟踪的空间锥体目标微多普勒频率提取方法[J]. 电子与信息学报, 2012, 34(12): 2972-2977.
Shao Chang-Yu, Du Lan, Li Fei, Liu Hong-Wei. Micro-Doppler Extraction from Space Cone Target Based on Multiple Target Tracking. , 2012, 34(12): 2972-2977.