时分单通道人工噪声雷达系统

人工噪声是指具有类似白噪声性能的二相、多相、频相等群补码.发射并匹配接收群补码信号的雷达称为人工噪声雷达.经过筛选的群补码,其集自相关函数仅有主瓣而所有副瓣为零,并且信号样本多,变化灵活.根据这一特性设计的时分单通道人工噪声雷达系统,具有大时宽、大带宽和信号灵活多变的特性,使雷达系统具有低截获概率性能.另外,利用二相群补码码组序列的多样性,将发射信号的样本做成码库,以便灵活变化信号使雷达具有极强的抗侦察和抗干扰能力.

Manual Noise Radar System With Time-Division Single Channel

Manual noise is a group-complement signal with two-phase, many-phases, frequency-phase, or others, which characteristic is similar to white noise. The radar that transmits and receives the echo in matched means is called as manual noise radar. The set self-relation function of selected group-complement signal has only main lobe and all sidelobes are zero. The signal samples are much and flexible. Manual noise radar system with time-division single channel designed according to these characteristics has big time-width, big bandwidth and it's signal is easy to change in many modes, so the radar system has characteristic of low-probability of intercept. In addition, the transmitter signal samples can be found into code-storage by use of multiplicity of the code sequence of two-phase group-complement, so that the radar can get very good characteristics of anti-reconnaissance and antijamming by change flexibly the signal mode.