卫星导航接收机射频前端非线性失真建模综述

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中图分类号：TN965.5 文献标志码：A DOI：10.12305/j.issn.1001-506X.2025.03.26

Review of nonlinear distortion modeling in RF front end of satellite navigation receivers

LIUJiajun，LU Zukun＊，XIAO Wei，LI Zongnan，LIU Zhe （CollegeofElectronic ScienceandTechnology，NationalUniersityofDefenseTechnology，Changsha4Oo3，China）

Abstract：Thenonlinear efect of radio frequency（RF）front end of satelite navigation receiver threatens the normal operation of navigation equipment，which is the bottleneck to further improve theanti-interference performanceof satelite navigation receiver.Itisan important method toestablish the behavior model of nonlineareffct of equipment.With the variety of satellite navigation receivers and the complexity of interference environment，the existing nonlinear models are shown the problems of insuficient targeted research onsatelite navigation receivers，insuficient reliability under interference environment，and unsuitable modeling methods.Therefore，this paper summarizes the mainstream modeling methods of nonlinear efect behavior level，reviews the advantages and disadvantages of each modeling method，and introduces the application of machinelearning technology in nonlinear behavior level modeling.Finally，based on the summaryof the characteristics of existing modeling technologies and the problems faced，the future development of nonlinear behavior modeling technology of satellite navigation receiver is prospected.

Keywords：satelite navigation receiver；nonlinear distortion；behavior model；machine learning

0 引言

卫星导航系统具有全天时、全天候和全区域覆盖的导航定位授时能力，是重要的空间基础设施。（剩余35485字）