TDRSS返向多模式数传及用户星测距接收机设计  

Design of a Multi-mode Data Transmission and Range Receiver

作　　者：保骏[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2011年第3期22-26,共5页Telecommunication Engineering

摘　　要：设计了一种应用于中继卫星地面系统的多模式数传及测距接收机。在本设计中,以软件无线电理论作为指导思想,采用了VLSI可编程芯片作为算法主要实现器件,在一块CPCI标准6U板卡中集成了两路相互独立的信号通道,能够分别接收两路信息速率在10 Mbit/s以下的调制、编码、扩频方式均不相同的返向信号,并利用扩频码提取距离数据。调制方式包括BPSK、QPSK、SQPSK、UQPSK,编码方式包括RS、卷积、RS+卷积。基于此,接收机还可应用于其它多通道、多模式的数传系统中。A multi - mode data transmission and range receiver is designed for the ground system of TDRSS （Tracking and Data Relay Satellite System）. Based on SDR（Software Defined Radio） theory, VLSI（Very Large Scale Integrated） programmable chip is used as the main device to realize algorithm. Two independent signal channels are integrated on a 6U standard CPCI interface card, which can receive two channels return signal with rate below 10Mbit/s and different modulation, coding and spectrum spreading modes, respectively, and the distance can be extracted from the PN code. The modulation modes include RS, convolution and RS ＋ convolution. Based on the characteristics, this receiver can also be used to other multi - channel and multi - mode data transmission systems.

关 键 词：TDRSS 地面系统 软件无线电 多通道多模式接收机 

分 类 号：TN927[电子电信—通信与信息系统]