窄带高速数据通信的中频数字化实现

Realization of Digital IF in Narrow Band High Speed Data Communication

本文从理论与实践相结合的角度提出了一种适合衰落信道的窄带高速率高中频调制方式，它采用TCM与PSAM两项技术相结合的方案，可以实现在25kHz带宽上传送64kb／s数据的高速率。

Theory combined with practice, this paper put forth a way of narrow band, high speed and high IF modulation suitable for decayed channel. TCM and PSAM tech-nologies work together to realize 64Kb/s rate in 25kHz bandwidth.