图样匹配跳频系统的性能及图样码型选择  

Pattern sequences and performance analysis based on pattern matching frequency hopping system

作　　者：李苏阳[1] 全厚德[1] 崔佩璋[1] 

机构地区：[1]军械工程学院信息工程系,河北石家庄050003

出　　处：《计算机工程与设计》2013年第7期2367-2371,共5页Computer Engineering and Design

摘　　要：针对跳频通信在宽带噪声干扰和梳状干扰下误比特性能较差的问题,基于"信道即消息"的思想,提出了一种新的短波跳频通信技术———图样匹配跳频。以Williard码、Walsh码和Gold码为例,分析了几种图样码的特性及对系统抗干扰能力和信息速率的影响。提出了图样码的选取要求,结合系统的两种帧同步策略分别给出了图样码型,对FH/MFSK和图样匹配跳频系统进行了仿真对比。仿真结果表明,图样匹配跳频系统具有更强的抗干扰能力,在恶意干扰严重影响常规跳频的误码性能时,图样匹配跳频可以显著提升通信的可靠性。To improve the BER performance of FH communication under wide band noise jamming and comb jamming, a new frequency hopping system is presented, which is called pattern matching frequency hopping system, based on the method that ＇the medium is the messag＇. The relativity and quantities of Williard sequences, Walsh sequences and Gold sequences are ana- lyzed. The influence on the anti-jamming capability and information rate are given. Pattern sequence is given respectively based on different frame synchronization methods. The performance of FH/MFSK and pattern matching frequency hopping is analyzed. All these prove that pattern matching frequency hopping system brings reliability improvement for communication while the conventional FH is jammed seriously.

关 键 词：跳频 图样匹配 图样码型 宽带噪声干扰 梳状干扰 

分 类 号：TN973.3[电子电信—信号与信息处理]