基于软件无线电的探空仪接收机研究

Research on Sonde Receiver Based on Software Radio

提出一种利用软件无线电技术设计探空仪接收机的原理和实现方法。研究了以DSP模块为核心的中频处理部分,提出了探空信号的解调方案,完成了数字下变频部分FIR低通数字滤波器设计和基带信号解调的Matlab仿真。该软件无线电接收机与现有的探空仪接收机相比,在灵活性、实用性和可扩展性方面均有较大改善。

This paper introduced a theory and implementation method of a new type of sonde receiver design which is based on software radio. It primarily studies the IF disposal part with digital signal processor as the core and has proposed the demodulation scheme of sonde signal. It achieved the Matlab simulation of the FIR low pass filter design in DDC and the base band signal demodulation. The flexibility, practicality and expansibility of this software radio receiver are better than the present ones.