多相編碼脈沖壓縮雷達信號的優(yōu)化設計與仿真.pdf

1、V1030718分類號TN91UDC(DDC)6237密級玉河浮J號碩士學位論文多相編碼脈沖壓縮雷達信號的優(yōu)化設計與仿真徐健指導教師姓名：螢室塑援迎連盍堂電氫王猩堂瞳申請學位級別：王堂亟專業(yè)名稱：籃呈蘭值息處理論文提交日期：窒QQ工生!旦論文答辯日期：呈QQZ生3旦星璺目學位授予單位和日期：邐篷太堂星QQZ生壘旦答辯委員會主席：塑愛登斂攮論文評閱人：三拍撻鏊援、王苤送數援、2007年3月中國南京AbstractP3、P4polyphas

2、epulsecompressioncodeswhichwerederivedfromlineavfrequencymodulationpulsecompressionwavefonnsandbroughtoutbyLewisBLinearly1980s，areakindofcommonpulsecompressioncodesComparedtolinearfrequencymodulationsignals，theyhavelowra

3、nge—timesidelobaswithoutweightinginreceiver；Comparedtobiphasesignals，theyhavelargeDopplertoleranceAdditionallythesecodeshavelowcrosscorrelation、easeofimplementation、compatibilitywithdigitalimplementationandcompatibilityw

4、ithban@assmitedreceiversSothesecodesarevaluedverymuchallthetimeBut，theirutilizationhavebeenlimitedbecauseoftheircomplexcompressionprocedurecomparedtobiphasecodesTheseyears，withtherapiddevelopmentofdigitaltechnologyandint

5、egratedcircuittechnologyespeciallytheimplementationofDDStechnologyandVeryLargeDigitalSignalProcessoritispossibletocreateanddealwiththesecodesThisessaydidsomeresearchinP3、P4polyphase’spropertiesandtheirrealizationtechnolo

6、gies，discussedtheirspectrum、ambiguityfunctions、DopplertoleranceandotherpropertiesthoroughlyandsystematicallyandalsoresearchedtheirrealizationbasedonDDS，ncludingperformanceevaluationboardInrealutilization，weneedmorelowers

7、idelodestodetectsmalltargetsbesidelargetargets，becauselargetargets’sidelobewillsubmergesmalltargetsSoitisveryvaluableteducethepeaksidelobesThisthesisdiscussedthreeWel【ghtingmethodstoreducethepeaksidelobesClassicAmplitude

8、Weighting、PostCompression2SampleAveragerandlterativeLeastSquaresTechniquesManycomputersimulationresultsandconclusionsaregivenoutTheseconclusionsprovideabasisfortheirimplementationKeywords：polyphasecodes、pulsecompression、