基于脈動(dòng)陣列的盲均衡多用戶檢測器的設(shè)計(jì)研究.pdf

1、廈門大學(xué)碩士學(xué)位論文基于脈動(dòng)陣列的盲均衡多用戶檢測器的設(shè)計(jì)研究姓名：林志謀申請學(xué)位級(jí)別：碩士專業(yè)：無線電物理指導(dǎo)教師：盧貴主20060501AbstractAbstractCDMAhasbecometheairinterfacemainstreamsolutionoftheIMT2000Withtheboomingofwirelesscommunicationmarket，itisexpectedintheCDMAengineering

2、toimprovethedatatransferrateaswellasthesystemcapacity，Butinthehi【ghratewirelessaccessCDMAsystem，theintersymbolinterference(ISI)cannotbeneglectedasitoftendointhelowrateCDMAsystemTheISlwiththemultipleaccessinterferencefMAI

3、)whicharisesfrommutualinterferenceamongallthe(nonorthogonal)activeusersofthesystem，constitutesthemajorimpedimenttotheoverallsystemperformanceWithoutpropercompensationforMAIandISl，BitErrorRate(BER)isgeneratedhighlyBlindeq

4、ualizationandmultiuserdetection，whicharestudiedinthisdissertation，carlbeusedtosolvetheproblemBlindequalizationisaselfadaptiveequalizationtechnologyItdoesn。tneedreferringtoatrainingsequencetomaintainnormalwork，onlyutilize

5、sthepriorinformationoftransmittedsignalstoequalizethechannelcharacterSointhedigitalcommunicationsystematrainingsequenceisn’ttransmitted，whichcanraisethechannellsefficiencyHoweverblindequalizationmaygetmuchbeRerequalizati

6、onabilityatthesanletimeThesuperperformanceofblindequalizationsnakesitbenoticedwidelyandbeusedinmanyfieldsThispapersystematicallyanalysesandsummarizesthebasictheoryofblindequalizationsuchasalgorithmform，performanceparamet

7、er，B—GalgorithmofBussgangalgorithmsistheemphasisMultiuserdetectioncaneliminateMAIessentiallyandimprovesystemperformance，MUDisoneofthekeytechnologiesin3GmobilecommunicationsystemButduetothehighcomplexityofMUDalgorithm，iti

8、sverydifficulttoexploitthistechnologyinpraticalsystem，themainresearchworkmayfocusonhowtopresentahighperformance，lowcomplexityalgorithminrecentlyyearsInthispaper，wcuseamultiuserdetectionbasedonsystolicarray，thissystolicar

9、chitectureadaptivelyreconfiguresthetapcoefficientofthetransversalfilter，throughcomparingitwithotherdetection，theconclusionisdrawnthatthedetectorhashighperformanceInthispaperanewalgorittmawhichisnamedasblindequalizationan

10、dmultiuserdetectionbasedonsystolicarrayisproposed，itcanreducetheISIandMAItogether，andtheeffectofthedetectioninsymbolerrorratehasbeentestedbymeansofcomputersimulationsWiththecombinationofthedetectionandFPGAtechnology，astu