实施转发式GNSS欺骗干扰的功率控制策略研究

在实施转发式欺骗干扰时，经转发的干扰信号和直达信号同时进入被干扰接收机， 对接收机的信号处理过程造成复杂的影响。转发式干扰根据信号功率的大小，其干扰效果可能会出现信号压制、信号欺骗或无法欺骗等多种情况，目前尚无文献对转发干扰信号功率控制进行定量研究。为推进转发式欺骗干扰在导航战中的实际应用，制定合适的转发式欺骗干扰功率控制策略，本文初步建立了存在转发干扰情况时，直达信号与转发信号的载噪比估计模型，并利用实际的转发设备和接收机标定了模型中的相关参数，最后利用经过标定的模型分析了干扰功率与转发式欺骗干扰作用距离的关系。实际实验表明，模型估计的结果与实际情况较为吻合，可以作为制定转发式欺骗干扰策略的依据。

Research on Power Control Strategy of GNSS Repeater Deception Jamming

In the implementation of forward deception jamming, the transmitted jamming signal and the direct signal enter the jammed receiver at the same time, which has a complex impact on the signal processing process of the receiver. According to the size of the signal power, the jamming effect of repeater jamming may appear signal suppression, signal deception or no deception and so on. At present, there is no quantitative research on the power control of repeater jamming signal. In order to promote the practical application of repeater deception jamming in Navigation Warfare and formulate the appropriate power control strategy of repeater deception jamming, the paper initially establishes the carrier to noise ratio estimation model of direct signal and repeater signal in the presence of repeater jamming, and uses the actual repeater equipment and receiver to calibrate the relevant parameters in the model, and finally analyzes the interference by using the calibrated model The relationship between jamming power and the distance of repeater deception jamming. The experimental results show that the results of the model are in good agreement with the actual situation, which can be used as the basis for making forward deception jamming strategy.