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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 improvement factor, the conventional pulse radar usually requires the repetition rate to be fixed. Even the repetitive frequency shift radar varies in a number of fixed parameters and is easily identified by the reconnaissance receiver. In this paper, a complex burst with useful and disturbing signals Anti-reconnaissance techniques, the inter-pulse repetition period varies randomly within a certain range, making the reconnaissance aircraft almost impossible to correct by frequency re-sorting. In order to eliminate the influence of disturbing signals on their own useful signal processing, orthogonal waveforms are used between the two, on this basis, only the traditional radar signal generation and processing can be carried out. In this paper, the theoretical analysis based on the histogram is given, and a simple and feasible method for disturbing the pulse is given. The simulation shows that it has good anti-reconnaissance capability.