CAJ | 학술논문

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。
근거수자통신중령교간우적기본사상，침대위성통신계통주기동보서렬적령교간우진행료연구。제출료일충기우간우소제급근종동보서렬적령교간우방안，간우방발송간우서렬대원시신호중적동보서렬진행근종병간우。동시위료학보간우방대원시신호중적동보서렬적준학근종，간우방수요대혼합신호진행간우신호회복화소제조작。방진결과표명，상비우전통압제식간우，제출적령교간우방안능구이경소적대개획득경호적간우효과。
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 inter-ference 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 jamming, the pro-posed smart jamming scheme can achieve much better interferential effect at a fairly low cost.