【摘要】 介绍了盲均衡器对具有多途效应的BPSK相干水声通信数据均衡的实验结果。采用Matlab编程,获得了符合盲均衡要求的信源信号,通过在水池发射具有低频载波的信号,获得了具有多途水声信道特性的BPSK数据,经过解调、同步等处理后,检验了隐含和直接使用高阶统计量的盲均衡算法对实际多途水声信道的均衡效果,并与传统的自适应均衡算法进行了性能对比。结果表明,一种常数模判决反馈盲均衡算法,获得了与自适应算法很接近的性能。更多还原

【Abstract】 The experimental results of blind equalization of the underwater multipath coherent BPSK signals are discussed in this paper.The transmission signals with statistics suitable for blind equaliza-tion are achieved by programming in Matlab code.By transmitting signals with low carrier frequency in the pool,we get BPSK data with multipath effect.After demodulation and synchronization,the data is fed into blind equalizers using higher statistics explicitly or implicitly.The results are compared with those of the traditional adaptive equalizers.It is shown that the performance of a kind of CMDFE algo-rithm is very similar to its adaptive counterparts.Hence,it is promising in practical use.[更多还原