差分跳频噪声归一化接收机性能分析  

Performance analysis of DFH noise-normalized receivers over rayleigh fading channels with partial-band jamming

作　　者：周志强[1] 李少谦[1] 程郁凡[1] 

机构地区：[1]电子科技大学通信抗干扰国家重点实验室,四川成都610054

出　　处：《电子技术应用》2011年第1期87-90,94,共5页Application of Electronic Technique

基　　金：国家基础科研项目(A1420080150);国家自然科学基金(60502010);国防科技重点实验室基金资助项目(9140C0204010703)

摘　　要：差分跳频系统的信号检测方法是差分跳频系统的关键技术之一。如果在接收端采用序列检测,能大幅提高差分跳频系统性能。提出了差分跳频噪声归一化接收机,并对该接收机在部分频带干扰Rayleigh衰落信道下的性能进行了分析,采用复变函数相关理论,给出了衰落信道下的误码界;计算机仿真结果表明其理论分析的正确性,同时可看出采用噪声归一化接收机能显著提高系统性能。Signal detection method is one of the key technologies of differential frequency hopping. If sequence decoding is used to detect the signal in the receiver, the performance of the system can be dramatically improved. In this paper, the noised- normalized combining receiver is proposed. The performance of the noised-normalized receiver over Rayleigh channels with partialband jamming is analyzed. The bit error probability bound is obtained based on the theory of complex variables. Simulation results validate our analytical results. It is shown that the noised-normalized receiver can significantly improved the system performance.

关 键 词：差分跳频 噪声归一化 部分频带干扰 RAYLEIGH衰落 

分 类 号：TN[电子电信]