An Effective Integration Target Detection in Method for Moving MCPC Radar  

作　　者：DENG Bin HUO Kai WEI Xizhang LI Xiang 

机构地区：[1]Research Institute of Space Electronics Information Technology, National University of Defense Technology, Changsha 410073, China

出　　处：《Chinese Journal of Electronics》2011年第3期560-564,共5页电子学报（英文版）

摘　　要：The Multi-frequency complementary phase-coded （MCPC） signal has caught much attention of researchers recently as a new type radar signal. The narrow band characteristic implied in its synthesized wide band enables it to be more suitable for Moving target detection （MTD） than traditional wideband signals. It is significant to research the MTD of MCPC for realization of multi-function wideband radar. Based on separation of sub-carriers from multi-frequency structure, this paper provides integration method of MTD for such radar signal. After analyzing the gain of Signal-to-noise ratio （SNR） after Doppler processing, the detection threshold and two improved measurements are presented. Process- ing the MCPC signal as one chip overcomes sampling shift caused by range walk and enables phase-coherent integra- tion. And integrating the peek of Doppler spectrum along velocity lines promotes the effect of integration. The simulation results show that this method can detect the fastmoving target efficiently and guarantee detection performance against low SNR.

关 键 词：Multi-frequency complementary phasecoded signal （MCPC） Moving target detection （MTD） INTEGRATION Doppler spectrum. 

分 类 号：TN958[电子电信—信号与信息处理] TN957.51[电子电信—信息与通信工程]