传统脉冲雷达为了提高改善因子,一般要求重频固定,即使是重频参差雷达也是在若干固定参数中变化,易于被侦察接收机识别出来,文中提出一种包含有用信号与扰乱信号的复杂脉冲串反侦察技术,脉间重复周期在一定范围内随机变化,使得侦察机几乎不能通过重频来正确分选。为了消除扰乱信号对自身有用信号处理的影响,二者之间采用正交波形,在此基础上,只需进行传统的雷达信号产生与处理即可。文中基于直方图进行了理论分析,并由此给出了简单可行的扰乱脉冲实现方法,通过仿真表明,具有良好的反侦察性能。

In order to improve the traditional pulse radar's improvement factor, generally constant pulse repetition interval (PRI) was required, even the PRI stagger radar was identified by reconnaissance receiver easily. A complex pulse string technology about containing useful signals and disturbing signals to counter reconnaissance was presented in this paper, PRI was in a certain range of random changes that reconnaissance receiver couldn't deinterleave the signals by PRI correctly. The orthogonal designed waveform was used to remove disturbing signals' impact on useful signal processing, the theory of the technology based on histogram was analyzed and a simple way to produce the disturbing signals was given, the simulation indicated that the design has a good performance.

TN973