双星定位通信系统中心站的伪码捕获  

The Pseudonoise Code Acquisition of the CentralStation of the Positioning and CommunicationSystem with Twin Satellites

作　　者：房少军[1] 李春宝[1] 

机构地区：[1]大连海运学院电子系导航教研室

出　　处：《大连海运学院学报》1991年第4期388-393,共6页

摘　　要：讨论了双星定位通信系统中心站的信号捕获问题,推导了SAW(声表面波)卷积器对QSS(四相扩频)信号的相关处理结果,分析了相关峰捕获概率,并给出了二次门限积累器的两个门限的计算方法和计算结果.In this paper, the rapid acquisition of the pseudonoise (PN) signal of the central station of the positioning and communication system with twin satellites is discussed. The correlative processing result of Q-SS (quadri-phase spread spectrum) signals with SAW (Surface Acoustic Wave) convolver is deduced. This paper also analyses the acquisition probability of the correlation peak of pseudonoise code, and gives the calculation method and result for the two stage thresholds of integrators.

关 键 词：卫星 伪码 导航系统 SAW卷积器 

分 类 号：TN967.1[电子电信—信号与信息处理]