基于机会信号的卫星终端定位方法

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中图分类号：TN919.23 文献标志码：A文章编号：1003-3114（2025）04-0763-08

doi：10.3969/j.issn.1003-3114.2025.04.013

Abstract：ThesateliteterminalpositioningtechnologybasedonSignalsofOpportunity（SoOP）leveragesdownlinksignalsfrom communicationsateliestachveautonomoususernavigationinscenarioshereGlobalNavigationSatellte ystem（GS）sigals areunavailable.Inrecentyears，withtherapiddeploymentofLowEarthOrbit（LEO）satellteconstelationssuchasStarlink，OneWeb，and Iridium，SoOPhasainedaccesstoincreasinglydiverseandabundantsignalresources，significantlyenhancingtherobustnessofpositioingandnavigationsystems.ThispaperfirstintroducesthefundamentalprinciplesofSoOP，thenaalyzestypicalpositioningmethodsbasedonobservablequantiessuchasDopplershiftforrepresentativeLEOconstelltions.Itfurtherprovidsasysteaticcomparisonofthpositioingacuacyndperformanceofvariousmehods，andfialldiscusesthecurenttchicalchllnges and future development trends in the field.

Keywords： SoOP； LEO；Doppler positioning

0引言

随着LEO卫星通信星座（如Starlink、OneWeb等）的迅速部署，卫星互联网正逐步成为地面网络的重要补充，尤其在偏远地区、海洋、高空平台等场景中提供全球覆盖的宽带通信服务。（剩余12766字）