摘要
研究了编码CW信号的特性,讨论了Gold序列族和Kasami序列族的优良的正交性,给出了这两种正交扩谱序列用于分布式防空雷达系统的数字信号处理机框图。理论分析和仿真结果表明:在多普勒频移较大时,这种处理机在脉冲压缩和扩展多普勒容限方面性能优越。
the charactet of the coded CW signal is studied and the excellent properties Of Gold and Kasami sequenee families are distcussed in this paper.The block diagram of the digital signal processor is pre-sented when these two orthogonal spread spectrum sequence frmilies are employed in dispersed radar systems for air defense. The theoretical analyses results of simulation show that under the condition of larger Doppler frequency the processor shares excellent performances on pulse compression and spreading Doppler tolerance.
出处
《现代雷达》
CSCD
1996年第5期21-31,共11页
Modern Radar
关键词
正交扩谱序列
PN编码
脉冲压缩
分布式雷达
orthogonal spread specrum sequence,pulse compression of PN code,dispersed radar system