摘要
论文针对甚低频通信信道,从发信机功率合成原理与辐射天线特点入手,分析了甚低频信道对数字调制方式的要求,通过研究几种常见调制方式的误码率性能、功率谱密度及信号占用带宽特性,以此分析出适用于甚低频通信信道的调制方式,最后对MSK调制方式下的甚低频信道数据传播能力进行了仿真。仿真结果表明,以MSK调制方式作为甚低频信道的数字调制方式,可得到较好的传输性能。
Starting from the way to create the characteristics of transmitter power and antenna radiation for the VLF communication channel, the requirements of VLF communication channel to digital modulation are analyzed, the modulation which applies to VLF communication channel can be analyzed by studying from BER modulation, power spectral density （PSD） and feature of Bandwidth occupied by signal, the VLF channel transmission ability is simulated in MSK at the end of the paper. The performance shows that preferable VLF channel transmission ability can be realized in MSK modulation
出处
《舰船电子工程》
2016年第8期115-118,179,共5页
Ship Electronic Engineering
关键词
甚低频通信
数据传输性能
MSK
VLF communication, performance of digital data transmission, MSK
