GNSS多径干扰抑制的相关器技术  

Review of GNSS Correlator Technique for Suppression of Multi-path Interference

作　　者：王凤瑛[1] 丁晓明[1] 

机构地区：[1]山东科技大学信息与电气工程学院,青岛山东266590

出　　处：《山东科技大学学报（自然科学版）》2012年第1期99-106,共8页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(61071087);青岛市基础研究项目(11-2-4-4-(9)-jch)

摘　　要：相关器技术是利用相关器结构或相关函数的处理来抑制多径干扰或补偿多径误差的技术,广泛应用于全球导航卫星系统(GNSS)接收机的干扰抑制,主要包括窄相关技术、Strobe相关器、Shaping相关器、MET技术、多径不变点技术以及MEDLL技术。探讨了它们抑制多径干扰的原理和实现方式,分析了剩余跟踪误差情况,总结了相关技术的应用和发展现状。Correlator technique is utilizing the correlator structure or processing technology of correlation function to suppress the multi-path interference or compensate multi-path errors,which is one of the most widely used technology of interference suppression in the global navigation satellite system（GNSS） receiver.Correlator technology mainly contains narrow correlator technology,strobe correlator,shaping correlator,MET technology,multi-path invariant point and MEDLL technology.In this paper,the principles of all multi-path suppression methods and implementing mode were discussed and,the residual tracking error and the current status of development were also analyzed,as well as the application and development status of related techniques were summarized.

关 键 词：全球导航卫星系统 多径干扰 相关器 抑制 补偿 

分 类 号：TN850.7[电子电信—信息与通信工程]