基于干扰消除和跟踪同步的灵巧干扰技术研究

Smart Jamming Technology based on Jamming Cancellation and Tracking Synchronization Sequence

根据数字通信中灵巧干扰的基本思想,针对卫星通信系统周期同步序列的灵巧干扰进行了研究。提出了一种基于干扰消除及跟踪同步序列的灵巧干扰方案,干扰方发送干扰序列对原始信号中的同步序列进行跟踪并干扰。同时为了确保干扰方对原始信号中的同步序列的准确跟踪,干扰方需要对混合信号进行干扰信号恢复和消除操作。仿真结果表明,相比于传统压制式干扰,提出的灵巧干扰方案能够以更小的代价获得更好的干扰效果。

In accordance with the basic idea of smart jamming in digital communication, the smart jamming aiming at the periodic synchronization sequence in satellite communication system is discussed, and a smart jamming scheme based on jamming cancellation and tracking synchronization sequence proposed. The interference sequence transmitted by the jammer, is used to track and interfere with the synchronization sequence in the original signal. Meanwhile, in order to guarantee the exact tracking of synchronization sequence in the original signal, the jammer needs to implement recovery and cancellation of the interference sequence and in the mixed signal. Simulation results show that as compared with the traditional blanket posed smart jamming scheme can achieve much better interferential effect at a fairly low jamming, the procost.