ADJUSTMENT OF LEVELING NETWORK BY INFORMATION SPREAD ESTIMATION

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摘要 Inpracticalparameterestimation,wehavealwayschoseneitherLeastSquaresEstimation(LSE)orRobustEstimation.Sincethedistributionofobservationsisunknown,toselectacorrectestimationmethodisverydifficult.Itiswellknownthatifobservationsincludegrosserrors,theresultofLSEwillbebadlycontaininated.Ontheotherhand,ifobservationsdonotincludeanygrosserrors,theresultofrobustestimationisnotasgoodasthatofLSE.Tosolvethisproblem,Wang(1999)developedanestimationmethodcalledInformationSpreadEstimation(ISE)basedontheinformationspreadprinciple.TheISEisaverygoodmethodforestimatingoneparameterwhichisveryrobust.However,mostofinstancesinsurveyingdataprocessingaremulti-parameters'estimation,owingtotheinherentrestrictionsofISE,itcannotbeappliedtothesurveyingdataprocessingdirectly.Toapplythegoodmethodtothefieldofsurveyingdataprocessingwidely,theauthorhasdonetheresearchdeeply.ThispaperappliesISEsuccessfullytotheadjustmentoflevelingnetworkbyusingthespecialtiesofleveling.
机构地区 不详
出版日期 2001年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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