PCSS-SC通信下基于导频序列的主动式RAKE接收研究  

Research on Active RAKE Reception Based on Pilot Sequence in PCSS-SC Communication

作　　者：陈浩 丁丹 CHEN Hao;DING Dan(Department of Electronic and Optical Engineering,Aerospace Engineering University,Beijing 101416;No.93448 Troops of PLA,Tianjin 300270)

机构地区：[1]航天工程大学电子与光学工程系,北京101416 [2]中国人民解放军93448部队,天津300270

出　　处：《舰船电子工程》2024年第9期58-64,共7页Ship Electronic Engineering

摘　　要：RAKE接收是一种适合扩频通信和频率选择性衰落信道的抗多径技术,论文具体分析了传统RAKE接收技术应用在并行组合扩频散射(PCSS-SC)通信系统时存在的待优化问题,结合信道多径衰落分析和仿真模型,说明了该系统适用于RAKE接收设计要求。为改善散射信道存在的严重多径衰落,结合PCSS-SC系统并行体制特殊性,提出基于导频序列的主动式RAKE接收模型,同时采用选择性合并(SC)/等增益合并(EGC)混合的合并方式。仿真结果表明,该模型在改进传统RAKE接收技术的同时,可以适配在PCSS-SC通信环境,有效降低系统误码率。RAKE reception is an anti-multipath technique suitable for spread spectrum communication and frequency selective fading channels.This paper analyzes the problems to be optimized when the traditional RAKE receiving technology is applied in parallel combined spread spectrum scattering(PCSS-SC)communication system,and combines the channel multipath fading analysis and simulation model to explain that the system is suitable for the RAKE receiving design requirements.In order to improve the severe multipath fading of the scattering channel,an active RAKE reception model based on pilot sequence is proposed based on the characteristics of the parallel system of PCSS system.The simulation results show that the model can be adapted to the PCSS-SC communication environment while improving the traditional RAKE receiving technology,effectively reducing the bit error rate of the system.

关 键 词：并行组合扩频 RAKE接收 散射 导频序列 

分 类 号：TN926[电子电信—通信与信息系统]