摘要
本文分析了快速跳频在部分频带干扰和高斯白噪声信道下的系统误码性能,推导了接收机采用了大数合并的误码率表达式,采用特征函数的办法重新分析了软判决线性合并时的误码率表达式。仿真结果表明,两种合并方法随着分集数的增大误码性能都下降,都不能抗全频带干扰。在干扰比较小时,软判决线性合并整体性能要好于大数合并。
In this paper,performance analyses for FFH systems under partial-band interference and Gaussian noise.We give the exact bit error probability expression of majority-vote combining receiver and analyse the bit error probability expression of linear comining soft decision receiver in terms of the characteristic function.The simulation results show that the error performance of soft decision combining receiver and majority-vote combining are further degraded as diversity number increases and they all can＇t anti full-band jamming. The soft decision combining receiver has better performance when the jamming is not very serious.
出处
《信息通信》
2008年第6期20-23,共4页
Information & Communications
关键词
快速跳频
软判决
线性合并
大数合并
FFH linear-combining soft decision majority-vote combining
