zpw-2000a 移频信号检测算法验证

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1、ABSTRACTTitle:V6ri们cationoftheZPW-2000Afrequency-shiffsignaldeteCtAlgorithmMajor:MicroelectronicsandSolid·stateElectronicsName:LeQiSignature:加度l’SuPervisor:ASsociateProf.YuanYangSignature:上黔竺Abst旧CtWiththedeveloPmentoftherailway，frequency-shiftautorr坦ticblocksystemplayanincreasinglyim]PO比mtrolein

2、theeontr01oftraintraffiesafety.ZPW-2000Anon.insulated伪闪ueney-shiftauto订.tiebloekWashomelr以debasedonF住旧ceUM71non.insulated份闪uency-shifttraekeircultin20(X).InthisPaP代firstofall，wecomPareseveraldeteCtionalgprithmofZPW‘20()0Afr娜luencyshiftsignal，silrlulatethetwoalgorithmofsynchronouszero一ssingfrequen

3、cycounting宜哈thedandfr饵luencys户戈廿umanal州5method，andcomParethesealgorithm.Finally，useDsPBuilderasaplatfonntodeteCtZPV/-200aA丘闪ueneyshiftsignal妙FPGA.S卯chronouszero一ssingfreq砰encytcountingmethed15dividedintowave~shaPingcircuitm以luleands扣chronouscountmodule，阴dwiththedetectedc出tierfreq耳cncywecanseta如姚h

4、ofdtodeteCttheIrlodulationfrequency.Fre卿encyd~deteetlna湘ythroughfastFouriertral招扔nntogettheca币erfrequeneyandmodulationfrequency.InordertomeettheresolutionweadoPttheUnder-SamPI吨andZFFTalgorithm.Finally，comParethe七万0algorithm.Conckision，Syncllro~zero一rossingfreqpencyeountingmethodisbetterin代汾1一time

5、andfrequeneysPeCtrumana1ysisisbetterinhigh.P代(ision.Keywords:frequency-shiftsignai;ZPV昨一2000A;FPGA了1绪论.................................................................……11.1课题背景及国内外现..............................................……l1.2论文内容及意义..……，...................................……二.…31.3论文结构安排.

6、................................................……，二32ZPW2000A移频信号特点及检测方法......................................……52.1移频自动闭塞系统................................................……52.2ZP份2000A移频自动闭塞系统.......................................……72.2.lzPW20OOA系统简介..........................................…

7、…72.2.ZZPw200OA系统频谱分析................................……，..…82.2.3ZP贾2000A系统分辨率要求...................................……n2.3移频信号检测方法...............................................……n2.3.1相干解调法.............................