基于ADS的衛(wèi)星偵察鏈路的建模及干涉儀測向算法研究.pdf

1、電子科技大學(xué)碩士學(xué)位論文基于ADS的衛(wèi)星偵察鏈路的建模及干涉儀測向算法研究姓名：陳娟申請學(xué)位級別：碩士專業(yè)：信號與信息處理指導(dǎo)教師：張揚(yáng)20090501ABSTRACTABSTRACTAresearchontheperformanceofreconnaissancesatelliteisdoneinthisthesisaimingtoprovidetechnicalsupportforrelateddemonstrationworkIn

2、thisthesis，notonlythemodelandsimulationofthewholesatellitereconnaissancelinkissetupbasedonADSplatform，butalsothedirectfindingworkisdoneThemainjobisasfollows：1Themodelofthewholereconnaissancelinkisestablishedaccordingtoth

3、eactualelectromagneticenvironmentofreconnaissancesatelliteinthisthesis，andthesurveillanceandinterceptionperformanceofsateUiteareanalyzedaswellThewholereconnaissancelinkisestablishedinthisthesis，whichale：thetypicalmilitar

4、ysatellite’SgroundstationtheinterspacedtransmittinglinkthesatelliteantennaarrayandthesurveillancereceiverAllofthemodelsarebasedontheactualelectromagneticenvironmentandsystemparameterswhichcanbemodifiedaccordingtoactualne

5、edsMoreovertheperformanceofreceiverisevaluatedusingpropersimulators、)lrimcertainparametersWhat’Smore，theinterceptionperformanceofreconnaissancesatelliteisanalyzedaswell2nedirection—findingflowandthepositioningprincipleof

6、spacebornedigitalinterferometerareanalyzedinthisthesisAndwhat’SmoretheformulaforcalculatingthelatitudeandlongitudeofthegroundtargetisdeducedonthebasisofexistingtheoryTealizethereconnaissanceadirectionfindingalgorithmshou

7、ldbeusedtodealwiththeoutputoftheantennamodelTheintcrferometerdirectionfindingalgorithmisusedbecauseofitsmaturetheoryandhi曲accuracyConsideringthatthedirectionfindingalgorithmdealsonlywiⅡltheoutputofidealantennaandthereisa

8、nexistenceofamplitudephaseerrorsinrealarraychannels，therefore，signal’Schannelerrorsmustbecorrectedbeforeusingdirectionfindingmethodneintroductionofdirection—findingflowofinterferometersystemisputforwardinthisthesis，which

9、canbedividedintothreeparts：thepre—processingbeforechannelerrorcorrection，errorcorrectionalgorithmsandthedirectionfindingprincipleoffiveelementLarraydi百talinterferometerInaddition，theformulaforcalculatingthelatitudeandlon