控制测量学考试试题及答案Word格式文档下载.docx
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控制测量学考试试题及答案Word格式文档下载.docx
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4.Geodeticcoordinatesystem:
coordinatesysteminwhichthepositionsofpointsarerepresentedbygeodeticlongitude,geodeticlatitude,andheightoftheearth.?
?
5,spacecoordinates:
toellipsoidcenterastheorigin,theinitialmeridianplaneandtheequatorialplaneintersectionistheXaxisintheequatorialplanedirectionandXaxisorthogonaltotheYaxis,theaxisofrotationoftheellipsoidtotheZaxis,arighthandcoordinatesystemo-xyz.
6,linearpoint:
normalEllipsoidbythemethodofcrosssectionandtheellipsoidsurfaceformingcirclesection.?
7,therelativemethodsection:
arrangedatanyellipsoidfromtwopointsaandB,anormalapointbypointbyBmethodandtheBnormallinemadebyapointmethodcalledrelativenormaltransversallineabpoints.?
8.Geodesic:
theshortestlinebetweentwopointsonanellipsoid.
9,theverticaldeflectioncorrection:
theverticaldirectionofthegroundobservationbasedonthehorizontalobservation,calculatedtothelineoflawbasedonthevalueofthecorrectionshouldbeadded.
10,elevationcorrection:
correctiondirectiondeviationcausedbyapointheight.?
11,crosssectioncorrection:
themethodofcuttingthearcdirectionintothedirectionoftheearthaddedcorrection.?
12.Thecalculationoftheinitialazimuthangle:
theastronomicalazimuthangleiscalculatedaccordingtotheverticalpositionofthemeasuringstation,andthelargeazimuthangleoftheellipsoidiscalculatedonthebasisofthenormalplaneoftheellipsoid.?
13,Legendretheorem:
iftheplanetriangleandthesphericaltrianglecorrespondingedgeisequal,thentheplaneangleisequaltothecorrespondingsphericalangleminus1/3sphericalangleultra.?
14.Theearthelement:
thegeodeticlongitude,geodeticlatitude,thelengthofthegeodesiclinebetweenthetwopointsandtheirpositiveandinverselocalanglesontheellipsoid.?
15,theearththemesolution:
ifyouknowsomeoftheearthelements,toextractsomeotherearthelements,suchcalculationiscalledtheearthsubjectsolution.?
16,thethemeisconsidered:
theearthknowncoordinatesofpointP1,P1toP2linelengthandazimuthcalculation,geodeticcoordinatesP2andgeodesicinpointP2theangle?
.?
17,geodeticinversecalculation:
ifyouknowthegeodeticcoordinatesoftwopoints,thegeodesiclengthanditspositiveandnegativeazimuthduringthecalculation.
18,mapprojection:
theellipsoidofeachelement(includingcoordinates,directionsandlength),accordingtocertainmathematicallawsprojectedontotheplane.
19,Gauss:
thehorizontalprojectionofellipticcylindricalconformalprojection(theillusionisanellipticcolumncrosssetontheearthellipsoidinvitro,andtangenttoacentralaxisoftheellipsoidradialcolumnthroughthecenter,andthenuseacertainellipsoidprojectionmethod,thecentralmeridianonbothsidesoftheareawithinacertainrangeofprojectiontotheellipticcolumn.Thenthecylinderintotheprojectionplane).?
20planemeridianconvergenceangle:
theanglebetweentheverticalaxisandthehorizontalaxisoftherightaxisandtheprojectionofthemeridianandparallelcirclerespectively.
21.Directionmodification:
changetheprojectioncurveofgeodeticlineintothecorrectionofitschord.
22.Lengthratio:
theratioofadifferentialelementatapointontheellipsoidtothecorrespondingdifferentialelementonitsprojectionplane.?
23,thereferencecoordinatesystem:
accordingtothereferenceellipsoidestablishedcoordinates(withtheheartastheorigin).
24,geocentriccoordinatesystem:
Basedonthetotalreferenceellipsoidestablishedbythecoordinatesystem(withthecenterofmassastheorigin).
25,stationcoordinatesystem:
takethemeasuringstationastheorigin,thenormal(vertical)ofthemeasuringstationistheZaxis(pointingtothezenithisright),themeridiandirectionistheXaxis(northwardisright),andtheYaxisisperpendiculartotheXaxisandZaxis,formingthelefthandsystem.
Two.Fillintheblanks:
1,ellipsoidalshapeandsizebymeridianellipse?
5?
basicgeometricparametersaredetermined,andthetwosemiaxis,eccentricity,eccentricityandeccentricityofthefirstsecond.
2.Determinetheshapeandsizeofthespheroid.Justknowthatthe2parameterinthe5parameterisenough,butatleastoneofthemisthelengthelement.
3,thegeometricparametersoftraditionalgeodesyusingastronomicalgeodesyandgravitymeasurementdatatocalculatetheearthellipsoid,China1954Beijingcoordinatesystemisused?
JLasovski?
Ellipsoid,in1980thenationalgeodeticcoordinatesystemisused?
75internationalellipsoid(1975internationalgeodeticAssociation)andellipsoid,globalpositioningsystem(GPS)istheapplicationofWGS-84(the17sessionoftheInternationalUnionofGeodesyandGeophysicsrecommended)ellipsoid.
Theradiusofcurvatureofthe4andtwoperpendicularinterceptarcs,whicharecollectivelyreferredtoastheprincipalradiusofcurvatureindifferentialgeometry,arem,N,and...
5.Themeanradiusofcurvatureofanypointontheellipsoidisrequaltothegeometricmeanofthemeridianradiusofcurvaturemandtheradiusoftheprimeunitarycurvaturen.<
/P<
p>
6.Inthederivationoftheformulaofthemeridionalarclengthontheellipsoid,thearclengthbetweentheparallelcyclesofBfromtheequatortoanylatitudeisexpressedas:
x=.
7,theparallelcirclearcformulaisexpressedas:
r=?
x=ncosb=?
.
The8andKlelotheorem(Kleloequation)isexpressedaslnsina+lnr=lnc(r*ina=c)
9.Ageodesicconstantequaltothesineproductoftheradiusoftheellipsoidandthelargelocalangleofthegeodesictraversingtheequator,orequaltotheradiusoftheparallelcircleofthepointonwhichthemaximumlatitudeisonthepoint.
10,theexpressionofLaplasseequationis.
11,ifeachangleofthesphericaltrianglesubtracts1/3ofthesphericalangle,wecanobtainaplanetrianglewithequaledge.
12.Projectiondeformationisgenerallydividedintoangulardeformation,lengthdeformation,andareadeformation.
13.Thereareisometricprojection,isometricprojectionandequalareaprojectioninmapprojection.
14,theGaussprojectionistheconformalprojectionofthetransverseaxisellipticcylinder,whichguaranteestheinvarianceoftheprojectiveangle,thesimilarityoftheshapeoftheimage,andtheidentityofthelengthratioinacertaindirection.
15,theuseofzoningprojectionnotonlylimitsthelengthofdeformation,butalsoensurestheuseofthesamesimpleformulaindifferentprojectionbeltsforthecalculationofthedeformationscausedbythesamedeformation.
16,ellipsoidtothegeneralformulaoftheexpressionforconformalprojection:
.
17,fromtheplanetotheellipsoidalconformalprojectionforgeneralconditionalexpression:
18,becausetheGaussprojectionisprojectedbyband,ineachprojectionband,thedifferencebetweenLisnotlarge,andl/pisasmallamount.Therefore,thefunctioncanbeexpandedasapowerseriesofdifferentialL.
19,becausetheGaussprojectionregionisnotlarge,theyvalueissmallerthantheellipsoidradius,sothepowerseriescanbeexpandedasy.
20,theGaussprojectionformulaisapowerseriesofL,whichisexpandedatthecentralmeridianpoint,
TheinverseformulaofGaussprojectionisthepowerseriesofYinthecentralmeridianpoint.
21,atrianglewiththreeinterioranglecorrectionvalueandshouldbeequaltothetriangle?
Negativesphericalexcess?
22,isthelengthlongerthanthepointofthepoint,andthedirectionofthepoint?
23,Gauss-Kruegerprojection,whenm0=1,calledtheGaussKrugerprojection?
whenm0=0.9996,called?
(UTMtransverseMercatorprojection)?
24.WriteseveralpossibleCartesiancoordinatesystemnames(threeofthem):
State3withGaussconformalprojectionplanerectangularcoordinatesystemandcompensationprojectionplane3degreeswithGaussconformalprojectionplanerectangularcoordinatesystem?
witharbitraryGaussconformalprojectionplanerectangularcoordinatesystem?
25.Theso-calledgeodeticcoordinatesystemmeanstheshapeandsizeoftheellipsoid,thecenteroftheellipsoid,andthedirectionoftheaxisoftheellipsoid.
26,ellipsoidpositioningcanbedividedintolocalpositioning,geocentricpositioningandgeocentricpositioning.
27,theorientationandorientationofthereferenceellipsoidisbasedoncertainconditionsandwillhavetheellipsoidofparameterdetermination
What?
Thelocationoftheearthisdetermined.
28,theorientationandorientationofthereferenceellipsoidshouldbechosenbysixindependentparameters,thatis,threetranslationparametersreferringtothereferenceellipsoid,andthreerotationparametersthatrepresenttheorientationofthereferenceellipsoid.
29,thereferenceellipsoidpositioningandorientationmethodcanbedividedintotwokinds,namely,pointpositioning,positioningandmulti-pointpositioning.
30,thereferenceoftheestablishmentofthereferenceearthcoordinateistheestablishmentofthereferenceellipsoidparameterandt
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