卫星通信中误码分析系统研究

Research on Bit Error Rate Analysis System in Satellite Communication

本文介绍了在卫星通信中噪声对误码率的影响,研究了在没有噪声和增加噪声两种情况下FP数据包的成功环回率以及数据包丢失或者出错的误码率。误码分析系统模拟终端向信关站计算资源管理模块实现链路建立的信令流程,在收到CDU帧号时向下行基带处理模块管理板发送FP数据包,该数据包经下行中频处理系统、物理层模块以及上行相应模块环回,然后误码分析系统对数据包进行分析、统计,得出噪声对误码率影响的实验数据。

This paper introduces the influence of noise on bit error rate in satellite communication,and studies the successful loop-back rate of FP data packets and the error rate of packet loss or error under the circumstance of no noise/louder noise.Error analysis system completes the radio link establishment’s signaling process with calculating resource management system in base station,and sends FP data packet to the downlink baseband processing board when it receives CDU frame number.This data packet goes through the loop of downlink intermediate frequency processing system,physical layer module and uplink module.The BER analysis system then executes analysis and statistics to the data packet,and gives the experimental result of the noise effect on bit error rate.