简介：Usinglinearinterpolationmethod,VIREalgorithmsimplytreatsthesignalstrengthvalueanddistanceofthereferencetagasalinearrelationship,leadingtotheinaccuracyofsignalstrengthvalueforvirtualreferencetags.ThethresholdinVIREalgorithmisafixedvaluethatneedsrepeatedlyadjustmentthroughexperiments,whichresultsinthecomplicatedalgorithm.Tosolvetheseproblems,animprovedalgorithmisproposedinthispaper,includingnonlinearinterpolationalgorithm,dynamicthresholdsettingandtagself-correctionoffuzzymap,whichbuildsanindoorpositioningsystembasedonreferencetags.Theexperimentalresultsshowthattheimprovedalgorithmcanimprovethepositioningaccuracyandimprovethestabilityofpositioningresultsunderbadenvironmentalconditionswithoutincreasingthenumberofreferencetags.