软件接收机平台实时性研究(英文)  

A Study of the Software Receiver's Real-time Performance

作　　者：王琦琦[1] 吴虹[1] 向坤[1] 蒲福银 陈坤[1] 张辉[1] 

机构地区：[1]南开大学电子信息与光学工程学院,天津市信息光子材料与技术重点实验室,天津300071

出　　处：《南开大学学报（自然科学版）》2015年第1期51-55,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：Supported by Ph D Programs Foundation of Ministry of Education of China(20110031110028);Tianjin Research Program of Application Foundation and Advanced Technology(13JCZDJC26000,13JCQNJC01000)

摘　　要：搭建了一套GPS软件接收机系统来研究接收机射频前端配置对软件接收机实时性的影响.通过对软件接收机算法时间复杂度的分析,确定了采样频率是影响接收机实时性的主要因素之一.测试了在不同采样频率下,接收机完成相应任务的耗时情况,分析了不同类型射频接收前端的信噪比性能的差别及量化位数对系统实时性的影响.为进一步研究其它种类的实时软件接收机系统提供依据和支持.A software-based GPS receiver was built to study the relationship between its real-time performance and the configurations of its radio front end.Firstly,the time complexity of the software receiver algorithm was analyzed.Then,the time-spans of the receiver were tested under different sampling rates separately.Finally,some other experiments were made to find the influences from the SNR performances of the radio front ends and the quantization levels.

关 键 词：软件无线电 软件接收机 实时性 

分 类 号：TN965.5[电子电信—信号与信息处理]