北斗一号用户机抗干扰能力分析  

Analysis for Anti-Jamming Ability of BD-1 User Receiver

作　　者：余辉 张超 孙胜连 董石磊 

机构地区：[1]中国洛阳电子装备试验中心,洛阳471003 [2]总参四部驻成都地区军代室,成都610036

出　　处：《电子信息对抗技术》2014年第1期46-50,共5页Electronic Information Warfare Technology

摘　　要：通过建立北斗一号用户机接收信号模型,分析了北斗一号用户机在多种典型干扰样式下的抗干扰性能。由于干扰信号与伪随机码不相关,在北斗一号用户机接收端被扩展,通过信号通频带内的干扰信号功率大大降低,提高了相关器的输出信噪比,达到了抗干扰的目的。The BD-1 user receiver signal model is established, and the anti-jamming ability of BD-1 user receiver is analyzed in kinds of different jamming signals. The jamming signal is ex- panded in BD- 1 user receiver for uncorrelated PN code, the power of jamming signal is de- creased and SNR of correlator is increased, which achieves the purpose of anti-jamming.

关 键 词：北斗一号 扩频增益 干扰 

分 类 号：TN973.3[电子电信—信号与信息处理]