基于GMR-1(geostationary earth orbit mobile radio interface)协议的某型卫星通信系统对我国实现了全域覆盖,造成信息安全隐患。针对传统干扰方法效率低的问题,提出了基于信道独特字序列检测的灵巧式干扰技术。首先,根据干扰可行性分析,采用相关匹配对独特字序列进行位置识别;然后,提出精确瞄准和相似序列空时隙插入干扰的灵巧式干扰策略并在广播控制信道传输模型上开展了对比试验。试验结果表明,该方法能准确识别逻辑信道中独特字序列位置并实现灵巧式干扰。

A certain type of satellite communication system based on GMR-1(geostationary earth orbit mobile radio interface)protocol covers the whole area of China, leading to significant challenges in information security. Aiming at the problems that efficiency of traditional interference schemes is low, this paper proposes a smart jamming technique based on unique word sequence detection in logical channel. Firstly, the method of correlation matching is used to identify the unique word sequence based on the feasibility analysis of jamming. Then, the interference strategies of precise aiming and similar sequences are proposed. Then, a comparative experiment is carried out on the broadcast controlled channel burst signal transmission model. The experimental results show that the proposed scheme can realize smart interference and destroy the communication link based on the accurate recognition of the unique word sequence position in the logical channel.