简介:Thecalculationmethodaboutinfraredmulti-sitespassivesystemlocationisintroducedbasedontheprincipleoftheweightedleastsquaremethod,andthevariancematrixofestimatederrorisoffered.Throughdeduction,itcanbefoundoutthattreatedappraiseprecisioncanbedirectlyanalyzedanddeducedwithoutcarryingoutrealmeasureandreachingestimationvalue.Thesimulationresultshowsthatthesystemperformancebasedontheweightedleastsquaremethodismuchbetterthanthetraditionalpassivelocationmethod,anditcanbealsousedforreferencetotheresearchofthelocationalgorithmofsimilarsystem.