简介:TheapplicationofGolaypulsecodingtechniqueinspontaneousBrillouin-baseddistributedtemperaturesensorbasedonself-heterodynedetectionofRayleighandBrillouinscatteringistheoreticallyandexperimentallyanalyzed.Theenhancementofsystemsignaltonoiseratio(SNR)andreductionoftemperaturemeasurementerrorprovidedbycodingarecharacterized.Byusing16-bitGolaycoding,SNRcanbeimprovedbyabout2.77dB,andtemperaturemeasurementerrorofthe100mheatedfiberisreducedfrom1.4°Cto0.5°Cwithaspatialresolutionof13m.Theresultsarebelievedtobebeneficialfortheperformanceimprovementofself-heterodynedetectionBrillouinopticaltimedomainreflectometer.