Novel non-coherent integration method using binary phase-coded radar signal  

作　　者：田黎育 何苗 刘斌 傅雄军 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2013年第1期60-66,共7页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Youth Science Fund)(61001190)

摘　　要：The m series with 511 bits is taken as an example being applied in non-coherent integra- tion algorithm. A method to choose the bi-phase code is presented, which is 15 kinds of codes are picked out of 511 kinds of m series to do non-coherent integration. It is indicated that the power in- creasing times of larger target sidelobe is less than the power increasing times of smaller target main- lobe because of the larger target＇ s pseudo-randomness. Smaller target is integrated from larger tar- get sidelobe, which strengthens the detection capability of radar for smaller targets. According to the sidelobes distributing characteristic, a method is presented in this paper to remove the estimated sidelobes mean value for signal detection after non-coherent integration. Simulation results present that the SNR of small target can be improved approximately 6. 5 dB by the proposed method.The m series with 511 bits is taken as an example being applied in non-coherent integra- tion algorithm. A method to choose the bi-phase code is presented, which is 15 kinds of codes are picked out of 511 kinds of m series to do non-coherent integration. It is indicated that the power in- creasing times of larger target sidelobe is less than the power increasing times of smaller target main- lobe because of the larger target＇ s pseudo-randomness. Smaller target is integrated from larger tar- get sidelobe, which strengthens the detection capability of radar for smaller targets. According to the sidelobes distributing characteristic, a method is presented in this paper to remove the estimated sidelobes mean value for signal detection after non-coherent integration. Simulation results present that the SNR of small target can be improved approximately 6. 5 dB by the proposed method.

关 键 词：binary phase-coded signal non-coherent integration code agility peak sidelobe level（PSL） mainlobe-peak sidelobe ratio 

分 类 号：TN958[电子电信—信号与信息处理]