基于双序列跳频的抗干扰通信方法  

Anti-jamming Method of Communication Based on Binary-sequence Frequency Hopping

作　　者：唐志强 全厚德 孙慧贤 韩月明 TANG Zhiqiang;QUAN Houde;SUN Huixian;HAN Yueming(Army Engineering University of PLA,Shijiazhuang 050003,China;National Key Laboratory of Science And Technology on Communication,Chengdu 611731,China;Unit 66389 of PLA,Shijiazhuang 050081,China)

机构地区：[1]陆军工程大学石家庄校区,河北石家庄050003 [2]电子科技大学通信抗干扰国家级重点实验室,四川成都611731 [3]中国人民解放军66389部队,河北石家庄050081

出　　处：《探测与控制学报》2020年第1期56-61,共6页Journal of Detection & Control

基　　金：国家自然科学基金项目资助(61531009,61471108);国家重大专项基金项目资助(2016ZX03001009);河北省自然科学基金项目资助(F2017506006)。

摘　　要：针对常规跳频受跟踪干扰威胁和差分跳频受部分频带干扰威胁的现状,提出了基于双序列跳频的抗干扰通信方法。该方法的数据信道和对偶信道按各自的跳频序列进行跳变,干扰方无法准确跟踪对偶信道,抑制了跟踪干扰的影响。接收机采用窄带接收可以滤除带外干扰,使得系统同时兼具较好的抗部分频带干扰能力。仿真验证结果表明,随着莱斯因子的增加,BSFH的误码率显著降低;最坏跟踪干扰下BSFH比FH/BFSK有5~10 dB的性能增益,部分频带干扰下,误码率达到10-3时,BSFH所需的信干比比DFH低10~12 dB。Aiming at the problems that the conventional frequency hopping was subject to the follower jamming(FJ) threat and the DFH was affected by the partial band jamming(PBJ), an anti-jamming communication method based on binary-sequence frequency hopping(BSFH) was proposed. The data channel and the complementary channel of BSFH hopped on their respective sequences. The jammer could not track the complementary channel successfully, which suppressed the effect of FJ. The narrow-ban front end was employed in the BSFH receiver, so that the system had better resistance to PBJ at the same time. Simulation results showed that the bit error rate of BSFH was significantly reduced as rice factor was increased.The performance gain of BSFH was improved by 5~10 dB compared with conventional FH under the worst-case FJ. When the bit error rate reaches 10-3, the required signal-to-interference ratio of BSFH was about 10~12 dB lower than differential frequency hopping under PBJ.

关 键 词：双序列跳频 莱斯信道 跟踪干扰 部分频带干扰 

分 类 号：TN914.4[电子电信—通信与信息系统]