微型多路 PCM 遥测编码器的设计

The Design of a Mini Multi Channel PCM Telemetry Encoder

针对遥测系统愈来愈小的重量和体积的要求，介绍遥测系统发送端ＰＣＭ遥测编码器的几种实现方法，并对某遥测系统的ＰＣＭ编码器采用了数字逻辑电路来实现，详细介绍其设计思路及过程。设计的编码器，全部控制电路由一片可编程逻辑器件（ＰＬＤ）来完成，减小了电路板的面积。

Appointed to the less and less requirement of weight and volume of the telemetry system,some method of composing a PCM telemetry encoder is introduced.The digital logic circuit is adapted to relies the encoder of a special telemetry system.The design idea and the procedure are discussed in detail.In the designed encoder,all of the control circuits are realized with a PLD (Programmable Logic Device).The area of the printed circuit board is reduced obviously.