Co-channel Interference Suppression for Homo-type Radars Based on Joint Transform Domain and Time Domain
Huan Hao① Tao Ran① Li Yuan-shuo①② Wang Yue① Wang Gui-ying①
①(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China) ②(Beijing Institute of Electronic System Engineering, Beijing 100854, China)
Abstract：An interference suppression method based on joint fractional Fourier domain and time domain is proposed in this paper, to solve the problem of co-channel interference caused by homo-type radars working in ship formation. The interferences with different chirp rate from echo signal can be eliminated at fractional Fourier domain, and because of the reversibility of fractional Fourier transform, the ones with similar chirp rate can be cancelled by against-asynchronism of adjacent periods at time domain. Computer simulation results show that interference suppression processing gain reaches 29 dB. This method presents technical support for the ElectroMagnetic Compatibility (EMC) research in the ship formation.
郇浩, 陶然, 李元硕, 王越, 王桂英. 基于变换域和时域联合处理的雷达同频干扰抑制方法[J]. 电子与信息学报, 2012, 34(12): 2978-2984.
Huan Hao, Tao Ran, Li Yuan-Shuo, Wang Yue, Wang Gui-Ying. Co-channel Interference Suppression for Homo-type Radars Based on Joint Transform Domain and Time Domain. , 2012, 34(12): 2978-2984.
2012, Vol. 34 
