遥测应用MSD+TPC技术时中频带宽的选取方法

Selection method of intermediate frequency bandwidth when applied MSD and TPC technology in telemetry system

针对码速率的提高,越来越多的脉冲编码调制-调频(PCM-FM)遥测信号应用了多符号检测(MSD)与Turbo乘积码(TPC)技术,只有合理选取遥测系统的中频带宽,才能保证遥测系统的通信质量。对PCM-FM遥测信号应用MSD+TPC技术时的频谱特性进行了分析,给出了中频带宽在实际应用中的最佳选取方法。

For improvement of the code rate,Multi-Symbol Detection(MSD)and Turbo Product Code(TPC)technology is applied in PCM-FM telemetry system more and more.Only by reasonably selecting the intermediate frequency bandwidth in the telemetry system can the communication quality be guaranteed.In this paper,the spectrum characteristic of MSD and TPC technology applied to PCM-FM telemetry signal is analyzed,and the best intermediate frequency bandwidth selection method in practical application is provided.