浅海远程水声通信由于水声信道带来的严重多径干扰和衰落, 导致通信速率低、误码率高 以及接收端信噪比低等缺点。针对这一问题, 提出了一种比较有效的M 元线性调频(L FM ) 水声通 信技术。-Remote shallow water acoustic underwater communication channel because of the serious multi-path interference and fading, resulting in lower communica

多进制相移键控信号的谱相关特性分析 原理分析等-M-ary phase shift keying signal spectral correlation analysis theory analysis

多径衰落信道中M进制直接序列扩频系统RAKE接收机性能分析-Multipath fading channels M-ary direct sequence spread spectrum system RAKE receiver performance analysis

Dieu che 2-FSK va M-ary FSK