一种小型化IRIG-PBW体制FM/FM副载波解调系统

A Miniaturized IRIG-PBW FM/FM Demodulation System

介绍一种可小型化的 FM/ FM多路遥测信号副载波解调器 ,该解调器使用一种可编程的通用有源滤波器 MAX2 6 0 / 2 6 1/ 2 6 2芯片 ,使得分路滤波器的中心频率及通带大小只需通过编程即可实现 ,不需要任何阻容器件 ,因此系统不仅具有很好的灵活性 ,而且易于实现小型化。对通道中心频率较低的 IRIG- PBW体制 1到 18通道均可适用。

A new miniaturized multiplex FM/FM telemetry demodulation system is introduced.It is a specialty in this system that a programmable universal active filter,MAX260/1/2,was used.This makes center frequency and bandwidth of bandpass filter realized only by programming,and any resistances or capacitances weren't needed.This system has good flexibility and can be miniaturized easily.It can be used for IRIG PBW Channel 1 to Channel 18.The realization of this system was precisely introduced.