激光大气数话同传系统的设计

给出了一套以激光作为信息传输的载体 ,单片机作为控制调度计算机 ,以 DSP作为高速语音压缩解压部件的激光大气数话同传系统设计。来自麦克风的语音信号经 A/ D转换后 ,由 DSP压缩成 2 .4kbps～ 9.6 kbps的串行数字信号 ,同时2 .4kbps～ 9.6 kbps的串行数字信号可由 DSP解压成 8k Hz13bit数字语音信号。经过压缩的语音数据和来自多串行口控制器的数据 ,通过单片机的协调 ,实现数据和语音信息在大气中的同时传输

A Design of Laser Atmospheric Data and Audio Transfer System

This paper has given a design of laser atmospheric data and audio transfer system,which with laser as information carrier,single chip microcontroller as manage comuter and DSP as the high speed audio compression parts.The audio signal from microphone,converted by A/D,compressed by DSP,forming a serial string with a speed of 2.4 to 9.6kbps.In the same time ,serial string with a speed of 2.4 to 9.6kbps can be extracted to digital audio signal of 8kHz13bit.Under the supervising of CPU,the compressed audio data and datd from multi serial ports can be transferred each other in atmosphere meanwhile .This paper has given the design thought of both hardware and software.