基于软件无线电的数字语音岩层通信机

A Digital Speech Terrane Communicator Based on Software Radio

本文论述了一种基于软件无线电的甚低频低码率语音数字岩层通信机 ,它采用了QPSK调制和 FEC信道编码技术。计算机仿真和 DSP编程结果表明 ,与同一硬件平台上实现的数字化单边带岩层通信机相比 ,在带宽相近的条件下 ,语音数字岩层通信机的功放效率高、语音音质好。

This paper deals with a digital speech communicator of very low frequency and low bit digital communication based on software ratio,which uses the technique of QPSK and FEC coding. The result of computer simulating and DSP programming shows that digital speech terrane communicator has the character of higher power magnify efficiency,better speech quality and far transmission distance,comparing with digital sample band terrane communicator based on the same hardware flat, conditioned the same bandwidth.