移动通信系统中微小区射线跟踪算法分析

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1、北京邮电大学硕士学位论文移动通信系统中微小区射线跟踪算法研究RESEARCHOFR觯TRACINGALGoRjTHMFORTHEMICR0．CELL0FMOBILECOMMUNICATIONSYSTEMABSTRACTAccompanyingwiththerealizationofthe3rd-generationtechnology,propagationpropertiesofmicro-ceUwirelessmobilechannelisveryimportantintheresearchanddevelopmentof

2、wirelesslransmissiontechniqueincludingthedesign,programmingandoptimizationofwirelesscommunicationnet．Inrecentyears,thefieldstrengthisestimatedusingtheray—tracingmethodbasedontheImage-Theory,GeometricalTheoryofDiffactionandUniformGeometricalTheoryofDiffraction,andisu

3、sedonestimationforwirelesschannel．Theefficiencyandreliabilityarealwaysthemostimportantfactorsforthealgorithmoftheray—tracing．Anewapproachofray—tracingmethodbasedonamirror-treeofson-brothersispresentedinthispaper．Themirror-treeisusedtostorethedataoftransmittingsource

4、，reflectionsource，diffractionsourceandreceivingpoints．Usingthemirror-treeofson—brothers,theorderofreflectionanddiffractionCanbechanged．Theactualantennapatternisintegratedwiththeray-tracingmethodinthispaper．The北京邮电大学顶士学位论文移动通信系统中微小区射线跟踪算法研究calculationefficiencyofray·

5、tracingmethodisenhancedusingthecorrespondingdirectivityfunctionofantennas．ThepathsearchandthecalculationofthepathfadingCanbecompletedusingtheray-tracingsoftwarerealizedwithVC++6．0．Manyaccelerationalgorithmsisusedsuchasback—collection,thebasedisplay·area,etc．Theresul

6、tscalculatedbytheray—tracingsoftwareiscomparedwiththemeasuredones,andthereliabilityofthealgorithmisproved．Keywords：ray-tracingmicro-cellson．brothersmirror-treepredictionmodelVC抖北京邮电大学硕士学位论文移动通信系统中微小区射线跟踪算法研究目录第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1课题的研究背景与意义⋯⋯⋯⋯⋯

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