摘要
本文介绍以8031单片机为核心的数字信号调制器的实现原理。由于采用了倍频技术和复合波形合成技术,因而这种数字信号调制器的传输速率在100~9600bit/s范围内可调,并且有ASK、FSK、PSK、DPSK、QAM等信号调制方式可供选择,以便适用于各种特性的信道。
A design principle of digital signal modulator is introduced in the paper.This modutator is conttolled by 8031 chip microprOCessor.Because frequency multiplier and compound waveform technology are used, the transmission rate of this davital signal modulatot can be regulated in 100-9600 bit/s range.For fitting a great variety of channel, the way of ASK,FSK, PSK,DPSK, QAM modulation can be chosen.
出处
《微机发展》
1995年第1期42-44,共3页
Microcomputer Development