摘要
本文从抗信号载获出发,研究了具有大时宽带宽积的二相编码序列波形,确立了以雷达“MT1-脉冲压缩-非相参积累”处理方案相结合的信号波形优化准则.根据这一信号波形优化准则,在计算机(?)量模块拟研究基础上,给出了码长 P=127的二相编码序列波形优化实例.当回波引入多普勒频移 f_d在0～10 kHz 变化时,这种信号的非相参积累输出,其主付比均达到实用要求,这种信号又容易实现脉间波形捷变,使信号具有良好的抗干扰和抗截获获能力,满足了中程搜索雷达对信号的要求.
With the purpose of anti-intercept of radar signals,the authors study waveforms of binary phase codes with large timebandwidth product,establish a signal optimizaion criterion based on signal processing of“MTI pulse compres- sion-noncoherent integration”,and give an actual example of signal optimization of binary sequences with code-lenth P=127 according to this criterion and computer simula-tion.when backward wave doppler frequency f_d variation on 0～10 kHz, noncoherent integration output of this signal,that rate of mainlobe to sidelobe meet the requirement.In addition,the signal has the ability of anti-jamming and working in con- cealment,so it is satisfied the needs for mid-range search radar.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1989年第5期506-511,共6页
Journal of University of Electronic Science and Technology of China
关键词
雷达
二相编码
脉冲压缩
radar
pulse compression
binary sequence
coding
