一种具有温度补偿的瞬时测频接收机的设计与实现

Design and implementation of a IFM receiver with temperature compensations

本文通过研究和分析温度对瞬时测频接收机测频误差的影响,改变了传统电缆恒温处理设计方案,在测频接收机中加入一温度补偿模块,实现对温度引起的测频误差的校正。并在硬件上实现了该测频系统。其中测频范围为2 GHz,通过测试,精度达到≤1 MHz(r.m.s),完全满足设计要求。

By studying and analyzingthe influence of temperature on instantaneous frequency measurement （IFM） system, this paper improves the previous design that placed the cable in the thermostat. As a replacement, a temperature compensations module is add in IFM receiver to correct the error caused by temperature variation. The IFM receiver is implemented in hardware and the designed frequency measurement rangeis ,to an accuracy of. After testing, equipment performance fully meet the design requirements.