DENG Dong-hu, ZHANG Qun, LUO Ying, et al. Micro-Motion Parameter Estimation of Radar Target Based on High-Order Moment Function[J]. Acta Electronica Sinica, 2013, 41(12): 2339-2345.
DENG Dong-hu, ZHANG Qun, LUO Ying, et al. Micro-Motion Parameter Estimation of Radar Target Based on High-Order Moment Function[J]. Acta Electronica Sinica, 2013, 41(12): 2339-2345. DOI: 10.3969/j.issn.0372-2112.2013.12.004.
A method for micro-motion parameter estimation of radar target based on high-order moment function is presented
which is suitable for the narrowband radar.Firstly
the radar echo is mixed with the reference signal
and then its direct current is eliminated.The high-order moment function of the signal with different time delays is calculated firstly
then the Fourier transform results of the high-order moment's imaginary parts are calculated and the peak value of their product results is detected to obtain the rotation frequency of target's micro-motional parts.The radius and the initial phase are estimated by successive cancellation.A computer simulation is given to illustrate the effectiveness of the proposed method.