两项技术使PCM/FM遥测系统信噪比增益提高9dB

Increasing PCM/FM Telemetry SNR up 9dB with Two Techniques

介绍国外采用多符号检测技术和Turbo乘积码技术使PCM/FM遥测系统的信噪比增益提高 9dB的研究结果。简要介绍这两种技术的原理 。

A research for two techniques is introduced that can increase PCM/FM telemetry SNR up 9dB.The two techniques are multi-symbol demodulation and Turbo product codes,the principles of which are given simply.And the good applied prospect of Turbo product codes is emphesized.