Abstract: | 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. |