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1、测量平差基础（Measurementofadjustmentbasis）WuhaninstituteofsurveyingandmappingIn1999,Iwasstudyingforpostgraduateentranceexaminationofmaster'sdegreeTestsubject:measurementoftheadjustmentsubjectcode7751.Fillintheblanks(20points,1pointforeachblank).1.Thecovariancematrixoftheobservedvect
2、or,thevarianceoftheunitweight,Function:Is:Itis.2.Thecovariancematrixoftheobservedvector,andthecofactorAndthevarianceoftheunits3.Settherightmatrixoftheobservedvaluevector,Knowntransformation,thetransformationofthepowermatrix=(),incontrasttotheaccuracyoftheaccuracyratio(),accura
3、cyofaccuracy().4.Somecontrolnetwork,thenecessaryobservationnumbert=3,thereare9observationvalues.Iftwoparametersofthefunctionaresetindependent,the()methodisusedtomaketheadjustmentoftheequation()and()aconditionequationand()anerrorequation.5.Inthelastquestion,ifyouchoose5paramete
4、rs.Theequationoftheequation()istheequationoftheequation().2.Thepersonwhoisrentingthewholestationshouldbearthetaskofsettingthepolarcoordinatesasshowninfigure1.PartyArequiresthattheaccuracyofp-pointloftingaccuracyistheabsolutevalueoftheerrorinthepositionofthepoint,andthatS=600m,
5、bothAandBarefreeoferror,andtherearethreetypesoftotalstationequipmentthatcanberented,andtherentandaccuracyofthefollowingtableareasfollows:PriceperhourHighprecision26yuan/when21Theaccuracyofthe16yuan/52Lowaccuracy12yuan/106(figure1)Itwilltakeanhourtoseteachtestback,whichisthebes
6、teconomicbenefitforrentingthekindoftotalstation?Whyisthat?().(10)3.Inthebordernetshowninfigure2,AandBareknownpoints,CandDarefixedpoints,andTADisknownazimuthandsideThelongobservationvalueisSi(I=1,2,3,4)andtheAngleobservationvalueis.Ifthenetisadjustedbytheconditionadjustmentmeth
7、od,thetestasks:Howmanyconditionsarethere?Howmanyequationsarethere?2.Listallconditionalequations(linearizationofnonlinearconditionalequation)(10)(figure2)4.Intheindirectadjustment,theparameteradjustmentvalueiscorrected,andthetestisrelatedtoV.Trytoproveit.(10)5.Itisknownthatastr
8、aightlinepassesthepoint(2,5)todeterminetheparameter,b,respect
