基于matlab的计算机仿真说明书

1例11洗手周期信号（方波）的展开,FB_JINSHIM洗手CLOSEALLBEEF洗手CLEARALLBEEF洗手N100BEEF取展开式的项数为2N1项洗手洗手T1BEEF洗手FS1/TBEEF洗手N_SAMPLE128BEEF为了画出波形，吃饭设置每个周期的采样点数洗手DTT/N_SAMPLEBEEF洗手洗手T0DT10TDTBEEF洗手NNNBEEF洗手FNSINCN/2EXPJNPI/2BEEF洗手FNN10BEEF洗手FTZEROS1,LENGTHTBEEF洗手FORMNN洗手FTFTFNMN1EXPJ2PIMFSTBEEF洗手END洗手PLOTT,FT洗手例12洗手利用FFT计算信号的频谱并与信号的真实频谱的抽样比较。洗手洗手脚本文件T2FM定义了函数T2F，吃饭计算信号的傅立叶变换。洗手洗手FUNCTIONF,SFT2FT,ST洗手THISISAFUNCTIONUSINGTHEFFTFUNCTIONTOCALCULATEASIGNALSFOURIER洗手TRANSLATION洗手INPUTISTHETIMEANDTHESIGNALVECTORS,THELENGTHOFTIMEMUSTGREATER洗手THAN2洗手OUTPUTISTHEFREQUENCYANDTHESIGNALSPECTRUM洗手DTT2T1BEEF洗手TTENDBEEF洗手DF1/TBEEF洗手NLENGTHSTBEEF洗手洗手FN/2DFDFN/2DFDFBEEF洗手SFFFTSTBEEF洗手SFT/NFFTSHIFTSFBEEF洗手脚本文件F2TM定义了函数F2T，吃饭计算信号的反傅立叶变换。洗手洗手FUNCTIONTSTF2TF,SF洗手THISFUNCTIONCALCULATETHETIMESIGNALUSINGIFFTFUNCTIONFORTHEINPUT洗手SIGNALSSPECTRUM洗手洗手2DFF2F1BEEF洗手FMXFENDF1DFBEEF洗手DT1/FMXBEEF洗手NLENGTHSFBEEF洗手TDTNBEEF洗手洗手TT/2DTT/2DTBEEF洗手T0DTTDTBEEF洗手洗手SFFFFTSHIFTSFBEEF洗手STFMXIFFTSFFBEEF洗手洗手洗手另写脚本文件FB_SPECM如下BEEF洗手方波的傅氏变换,FB_SPECM洗手CLEARALLBEEFCLOSEALLBEEF洗手T1BEEF洗手N_SAMPLE128BEEF洗手DTT/N_SAMPLEBEEF洗手洗手T0DTTDTBEEF洗手STONES1,N_SAMPLE/2,ONES1,N_SAMPLE/2BEEF方波一个周期洗手SUBPLOT211BEEF洗手PLOTT,STBEEF洗手AXIS0122BEEF洗手XLABELTBEEFYLABELSTBEEF洗手SUBPLOT212BEEF洗手FSFT2FT,STBEEF方波频谱洗手PLOTF,ABSSFBEEFHOLDONBEEF洗手AXIS101001BEEF洗手XLABELFBEEFYLABEL|SF|BEEF洗手根据傅氏变换计算得到的信号频谱相应位置的抽样值洗手SFFT2JPIF05EXPJ2PIFTSINCFT05SINCFT05BEEF洗手PLOTF,ABSSFF,R洗手例13洗手信号的能量计算或功率计算,SIG_POWM洗手CLEARALLBEEF洗手CLOSEALLBEEF洗手DT001BEEF洗手T0DT5BEEF洗手洗手S1EXP5TCOS20PITBEEF洗手S2COS20PITBEEF洗手洗手3E1SUMS1S1DTBEEFS1T的信号能量洗手P2SUMS2S2DT/LENGTHTDTBEEFS2T的信号功率S洗手洗手F1S1FT2FT,S1BEEF洗手F2S2FT2FT,S2BEEF洗手洗手DFF12F11BEEF洗手E1_FSUMABSS1F2DFBEEFS1T的能量,用频域方式计算洗手DFF22F21BEEF洗手TTENDBEEF洗手P2_FSUMABSS2F2DF/TBEEFS2T的功率，吃饭用频域方式计算洗手洗手FIGURE1洗手SUBPLOT211洗手PLOTT,S1BEEF洗手XLABELTBEEFYLABELS1TBEEF洗手SUBPLOT212洗手PLOTT,S2洗手XLABELTBEEFYLABELS2TBEEF洗手例14洗手方波的傅氏变换，吃饭SIG_BANDM洗手CLEARALLBEEF洗手CLOSEALLBEEF洗手T1BEEF洗手N_SAMPLE128BEEF洗手DT1/N_SAMPLEBEEF洗手T0DTTDTBEEF洗手STONES1,N_SAMPLE/2ONES1,N_SAMPLE/2BEEF洗手洗手DF01/TBEEF洗手FX1/DTBEEF洗手FFXDFFXDFBEEF洗手根据傅氏变换计算得到的信号频谱洗手SFFT2JPIF05EXPJ2PIFTSINCFT05SINCFT05BEEF洗手PLOTF,ABSSFF,R洗手AXIS101001BEEF洗手HOLDONBEEF洗手SF_MAXMAXABSSFFBEEF洗手LINEF1FEND,SF_MAXSF_MAXBEEF洗手LINEF1FEND,SF_MAX/SQRT2SF_MAX/SQRT2BEEF交点处为信号功率下降3DB处洗手BW_EQSUMABSSFF2DF/T/SF_MAX2BEEF信号的等效带宽洗手洗手例15洗手4带通信号经过带通系统的等效基带表示，吃饭SIG_BANDPASSM洗手CLEARALLBEEF洗手CLOSEALLBEEF洗手DT001BEEF洗手T0DT5BEEF洗手洗手S1EXPTCOS20PITBEEF输入信号洗手F1S1FT2FT,S1BEEF输入信号的频谱洗手S1_LOWPASSHILBERTS1EXPJ2PI10TBEEF输入信号的等效基带信号洗手F2S2FT2FT,S1_LOWPASSBEEF输入等效基带信号的频谱洗手洗手H2FZEROS1,LENGTHS2FBEEF洗手ABFINDABSS1FMAXABSS1FBEEF找到带通信号的中心频率洗手H2F20125201251BEEF洗手H2F30125301251BEEF洗手H2FH2FEXPJ2PIF2BEEF加入线性相位，吃饭洗手洗手T1H1F2TF2,H2FBEEF带通系统的冲激响应洗手H1_LOWPASSHILBERTH1EXPJ2PI10T1BEEF等效基带系统的冲激响应洗手洗手FIGURE1洗手SUBPLOT521BEEF洗手PLOTT,S1BEEF洗手XLABELTBEEFYLABELS1TBEEFTITLE带通信号BEEF洗手SUBPLOT523BEEF洗手PLOTF1,ABSS1FBEEF洗手XLABELFBEEFYLABEL|S1F|BEEFTITLE带通信号幅度谱BEEF洗手SUBPLOT522洗手PLOTT,REALS1_LOWPASSBEEF洗手XLABELTBEEFYLABELRES_LTBEEFTITLE等效基带信号的实部BEEF洗手SUBPLOT524洗手PLOTF2,ABSS2FBEEF洗手XLABELFBEEFYLABEL|S_LF|BEEFTITLE等效基带信号的幅度谱BEEF洗手画带通系统及其等效基带的图洗手SUBPLOT525洗手PLOTF2,ABSH2FBEEF洗手XLABELFBEEFYLABEL|HF|BEEFTITLE带通系统的传输响应幅度谱BEEF洗手SUBPLOT527洗手PLOTT1,H1BEEF洗手XLABELTBEEFYLABELHTBEEFTITLE带通系统的冲激响应BEEF洗手洗手SUBPLOT526洗手F3HLFT2FT1,H1_LOWPASSBEEF洗手PLOTF3,ABSHLFBEEF洗手5XLABELFBEEFYLABEL|H_LF|BEEFTITLE带通系统的等效基带幅度谱BEEF洗手洗手SUBPLOT528洗手PLOTT1,H1_LOWPASSBEEF洗手XLABELTBEEFYLABELH_LTBEEFTITLE带通系统的等效基带冲激响应BEEF洗手洗手画出带通信号经过带通系统的响应及等效基带信号经过等效基带系统的响应洗手TT0DTT1ENDTENDBEEF洗手YTCONVS1,H1BEEF洗手洗手SUBPLOT529洗手PLOTTT,YTBEEF洗手XLABELTBEEFYLABELYTBEEFTITLE带通信号与带通系统响应的卷积洗手洗手YTLCONVS1_LOWPASS,H1_LOWPASSEXPJ2PI10TTBEEF洗手SUBPLOT5,2,10洗手PLOTTT,REALYTBEEF洗手XLABELTBEEFYLABELY_LTCOS20PITBEEF洗手TITLE等效基带与等效基带系统响应的卷积中心频率载波洗手例16洗手例BEEF窄带高斯过程，吃饭文件ZDPWM洗手CLEARALLBEEFCLOSEALLBEEF洗手N01BEEF双边功率谱密度洗手FC10BEEF中心频率洗手B1BEEF带宽洗手洗手DT001BEEF洗手T100BEEF洗手T0DTTDTBEEF洗手产生功率为N0B的高斯白噪声洗手PN0BBEEF洗手STSQRTPRANDN1,LENGTHTBEEF洗手将上述白噪声经过窄带带通系统，吃饭洗手F,SFT2FT,STBEEF高斯信号频谱洗手FIGURE1洗手PLOTF,ABSSFBEEF高斯信号的幅频特性洗手洗手TTGTBPFF,SF,FCB/2,FCB/2BEEF高斯信号经过带通系统洗手洗手GLTHILBERTREALGTBEEF窄带信号的解析信号，吃饭调用HILBERT函数得到解析信号洗手GLTGLTEXPJ2PIFCTTBEEF洗手洗手FF,GLFT2FTT,GLTBEEF洗手6FIGURE2洗手PLOTFF,ABSGLFBEEF洗手XLABEL频率HZBEEFYLABEL窄带高斯过程样本的幅频特性洗手洗手FIGURE3洗手SUBPLOT411BEEF洗手PLOTTT,REALGTBEEF洗手TITLE窄带高斯过程样本洗手SUBPLOT412洗手PLOTTT,REALGLTCOS2PIFCTTIMAGGLTSIN2PIFCTT洗手TITLE由等效基带重构的窄带高斯过程样本洗手SUBPLOT413洗手PLOTTT,REALGLTBEEF洗手TITLE窄带高斯过程样本的同相分量洗手SUBPLOT414洗手PLOTTT,IMAGGLTBEEF洗手XLABEL时间T秒BEEFTITLE窄带高斯过程样本的正交分量洗手洗手求窄带高斯信号功率BEEF注BEEF由于样本的功率近似等于随机过程的功率，吃饭因此可能出现一些偏差洗手P_GTSUMREALGT2/TBEEF洗手P_GLT_REALSUMREALGLT2/TBEEF洗手P_GLT_IMAGSUMIMAGGLT2/TBEEF洗手洗手验证窄带高斯过程的同相分量、BEEF正交分量的正交性洗手AREALGLTIMAGGLT/TBEEF洗手用到的子函数洗手FUNCTIONT,STBPFF,SF,B1,B2洗手THISFUNCTIONFILTERANINPUTATFREQUENCYDOMAINBYANIDEALBANDPASSFILTER洗手INPUTS洗手FFREQUENCYSAMPLES洗手SFINPUTDATASPECTRUMSAMPLES洗手B1BANDPASSSLOWERFREQUENCY洗手B2BANDPASSSHIGHERFREQUENCY洗手OUTPUTS洗手TFREQUENCYSAMPLES洗手STOUTPUTDATASTIMESAMPLES洗手DFF2F1BEEF洗手T1/DFBEEF洗手HFZEROS1,LENGTHFBEEF洗手洗手BFFLOORB1/DFFLOORB2/DFBEEF洗手BF1FLOORLENGTHF/2BFBEEF洗手BF2FLOORLENGTHF/2BFBEEF洗手HFBF11/SQRT2B2B1BEEF洗手7HFBF21/SQRT2B2B1BEEF洗手洗手YFHFSFEXPJ2PIF01TBEEF洗手T,STF2TF,YFBEEF洗手例17洗手显示模拟调制的波形及解调方法DSB，吃饭文件MDSBM洗手信源洗手CLOSEALLBEEF洗手CLEARALLBEEF洗手DT0001BEEF时间采样间隔洗手FM1BEEF信源最高频率洗手FC10BEEF载波中心频率洗手T5BEEF信号时长洗手T0DTTBEEF洗手MTSQRT2COS2PIFMTBEEF信源洗手N0001BEEF白噪单边功率谱密度洗手DSBMODULATION洗手S_DSBMTCOS2PIFCTBEEF洗手B2FMBEEF洗手NOISENOISE_NBFC,B,N0,TBEEF洗手S_DSBS_DSBNOISEBEEF洗手FIGURE1洗手SUBPLOT311洗手PLOTT,S_DSBBEEFHOLDONBEEF画出DSB信号波形洗手PLOTT,MT,RBEEF标示MT的波形洗手TITLEDSB调制信号BEEF洗手XLABELTBEEF洗手DSBDEMODULATION洗手RTS_DSBCOS2PIFCTBEEF洗手RTRTMEANRTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF洗手SUBPLOT312洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLE相干解调后的信号波形与输入信号的比较BEEF洗手XLABELT洗手SUBPLOT313洗手F,SFT2FT,S_DSBBEEF洗手PSFABSSF2/TBEEF洗手PLOTF,PSFBEEF洗手AXIS2FC2FC0MAXPSFBEEF洗手TITLEDSB信号功率谱BEEF洗手8XLABELFBEEF洗手FUNCTIONTSTLPFF,SF,B洗手THISFUNCTIONFILTERANINPUTDATAUSINGALOWPASSFILTER洗手INPUTSFFREQUENCYSAMPLES洗手SFINPUTDATASPECTRUMSAMPLES洗手BLOWPASSSBANDWIDTHWITHARECTANGLELOWPASS洗手OUTPUTSTTIMESAMPLES洗手STOUTPUTDATASTIMESAMPLES洗手DFF2F1BEEF洗手T1/DFBEEF洗手HFZEROS1,LENGTHFBEEF洗手BFFLOORB/DFFLOORB/DFFLOORLENGTHF/2BEEF洗手HFBF1BEEF洗手YFHFSFBEEF洗手T,STF2TF,YFBEEF洗手STREALSTBEEF洗手例18洗手显示模拟调制的波形及解调方法AM,文件MAMM洗手信源洗手CLOSEALLBEEF洗手CLEARALLBEEF洗手DT0001BEEF时间采样间隔洗手FM1BEEF信源最高频率洗手FC10BEEF载波中心频率洗手T5BEEF信号时长洗手T0DTTBEEF洗手MTSQRT2COS2PIFMTBEEF信源洗手N0001BEEF白噪单边功率谱密度洗手洗手AMMODULATION洗手A2BEEF洗手S_AMAMTCOS2PIFCTBEEF洗手B2FMBEEF带通滤波器带宽洗手NOISENOISE_NBFC,B,N0,TBEEF窄带高斯噪声产生洗手S_AMS_AMNOISEBEEF洗手洗手FIGURE1洗手SUBPLOT311洗手PLOTT,S_AMBEEFHOLDONBEEF画出AM信号波形洗手PLOTT,AMT,RBEEF标示AM的包络洗手TITLEAM调制信号及其包络BEEF洗手XLABELTBEEF洗手AMDEMODULATION洗手9RTS_AMCOS2PIFCTBEEF相干解调洗手RTRTMEANRTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF低通滤波洗手SUBPLOT312洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLE相干解调后的信号波形与输入信号的比较BEEF洗手XLABELT洗手SUBPLOT313洗手F,SFT2FT,S_AMBEEF洗手PSFABSSF2/TBEEF洗手PLOTF,PSFBEEF洗手AXIS2FC2FC0MAXPSFBEEF洗手TITLEAM信号功率谱BEEF洗手XLABELFBEEF洗手例19洗手显示模拟调制的波形及解调方法SSB，吃饭文件MSSBM洗手信源洗手CLOSEALLBEEF洗手CLEARALLBEEF洗手DT0001BEEF时间采样间隔洗手FM1BEEF信源最高频率洗手FC10BEEF载波中心频率洗手T5BEEF信号时长洗手T0DTTBEEF洗手MTSQRT2COS2PIFMTBEEF信源洗手N0001BEEF白噪单边功率谱密度洗手洗手SSBMODULATION洗手S_SSBREALHILBERTMTEXPJ2PIFCTBEEF洗手BFMBEEF洗手NOISENOISE_NBFC,B,N0,TBEEF洗手S_SSBS_SSBNOISEBEEF洗手FIGURE1洗手SUBPLOT311洗手PLOTT,S_SSBBEEFHOLDONBEEF画出SSB信号波形洗手PLOTT,MT,RBEEF标示MT的波形洗手TITLESSB调制信号BEEF洗手XLABELTBEEF洗手洗手SSBDEMODULATION洗手RTS_SSBCOS2PIFCTBEEF洗手10RTRTMEANRTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF洗手洗手SUBPLOT312洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLE相干解调后的信号波形与输入信号的比较BEEF洗手XLABELT洗手SUBPLOT313洗手F,SFT2FT,S_SSBBEEF洗手PSFABSSF2/TBEEF洗手PLOTF,PSFBEEF洗手AXIS2FC2FC0MAXPSFBEEF洗手TITLESSB信号功率谱BEEF洗手XLABELFBEEF洗手例20洗手显示模拟调制的波形及解调方法VSB，吃饭文件MVSBM洗手信源洗手CLOSEALLBEEF洗手CLEARALLBEEF洗手DT0001BEEF时间采样间隔洗手FM5BEEF信源最高频率洗手FC20BEEF载波中心频率洗手T5BEEF信号时长洗手T0DTTBEEF洗手MTSQRT2COS2PIFMTSIN2PI05FMTBEEF信源洗手VSBMODULATION洗手S_VSBMTCOS2PIFCTBEEF洗手B12FMBEEF洗手F,SFT2FT,S_VSBBEEF洗手T,S_VSBVSBPFF,SF,02FM,12FM,FCBEEF洗手FIGURE1洗手SUBPLOT311洗手PLOTT,S_VSBBEEFHOLDONBEEF画出VSB信号波形洗手PLOTT,MT,RBEEF标示MT的波形洗手TITLEVSB调制信号BEEF洗手XLABELTBEEF洗手VSBDEMODULATION洗手RTS_VSBCOS2PIFCTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF洗手SUBPLOT312洗手11PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLE相干解调后的信号波形与输入信号的比较BEEF洗手XLABELT洗手SUBPLOT313洗手F,SFT2FT,S_VSBBEEF洗手PSFABSSF2/TBEEF洗手PLOTF,PSFBEEF洗手AXIS2FC2FC0MAXPSFBEEF洗手TITLEVSB信号功率谱BEEF洗手XLABELFBEEF洗手洗手FUNCTIONT,STVSBPFF,SF,B1,B2,FC洗手THISFUNCTIONFILTERANINPUTBYANRESIDUALBANDPASSFILTER洗手INPUTSFFREQUENCYSAMPLES洗手SFINPUTDATASPECTRUMSAMPLES洗手B1RESIDUALBANDWIDTH洗手B2HIGHESTFREQOFTHEBASEDBANDSIGNAL洗手OUTPUTSTFREQUENCYSAMPLES洗手STOUTPUTDATASTIMESAMPLES洗手DFF2F1BEEF洗手T1/DFBEEF洗手HFZEROS1,LENGTHFBEEF洗手BF1FLOORFCB1/DFFLOORFCB1/DFBEEF洗手BF2FLOORFCB1/DF1FLOORFCB2/DFBEEF洗手洗手F1BF1FLOORLENGTHF/2BEEF洗手F2BF2FLOORLENGTHF/2BEEF洗手STEPF1/LENGTHF1BEEF洗手HFF10STEPF1STEPFBEEF洗手HFF21BEEF洗手洗手F3BF1FLOORLENGTHF/2BEEF洗手F4BF2FLOORLENGTHF/2BEEF洗手HFF30STEPF1STEPFBEEF洗手HFF41BEEF洗手洗手YFHFSFBEEF洗手T,STF2TF,YFBEEF洗手STREALSTBEEF洗手洗手例21洗手显示模拟调制的波形及解调方法AM、BEEFDSB、BEEFSSB,洗手12信源洗手CLOSEALLBEEF洗手CLEARALLBEEF洗手DT0001BEEF洗手FM1BEEF洗手FC10BEEF洗手T0DT5BEEF洗手MTSQRT2COS2PIFMTBEEF洗手N001BEEF洗手洗手AMMODULATION洗手A2BEEF洗手S_AMAMTCOS2PIFCTBEEF洗手B2FMBEEF洗手NOISENOISE_NBFC,B,N0,TBEEF洗手S_AMS_AMNOISEBEEF洗手洗手FIGURE1洗手SUBPLOT321洗手PLOTT,S_AMBEEFHOLDONBEEF洗手PLOTT,AMT,RBEEF洗手AMDEMODULATION洗手RTS_AMCOS2PIFCTBEEF洗手RTRTMEANRTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF洗手TITLEAM信号BEEFXLABELTBEEF洗手SUBPLOT322洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLEAM解调信号BEEFXLABELTBEEF洗手洗手DSBMODULATION洗手S_DSBMTCOS2PIFCTBEEF洗手B2FMBEEF洗手NOISENOISE_NBFC,B,N0,TBEEF洗手S_DSBS_DSBNOISEBEEF洗手洗手SUBPLOT323洗手PLOTT,S_DSBBEEFHOLDONBEEF洗手PLOTT,MT,RBEEF洗手TITLEDSB信号BEEFXLABELTBEEF洗手DSBDEMODULATION洗手RTS_DSBCOS2PIFCTBEEF洗手13RTRTMEANRTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF洗手SUBPLOT324洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLEDSB解调信号BEEFXLABELTBEEF洗手SSBMODULATION洗手S_SSBREALHILBERTMTEXPJ2PIFCTBEEF洗手BFMBEEF洗手NOISENOISE_NBFC,B,N0,TBEEF洗手S_SSBS_SSBNOISEBEEF洗手SUBPLOT325洗手PLOTT,S_SSBBEEF洗手TITLESSB信号BEEFXLABELTBEEF洗手SSBDEMODULATION洗手RTS_SSBCOS2PIFCTBEEF洗手RTRTMEANRTBEEF洗手F,RFT2FT,RTBEEF洗手T,RTLPFF,RF,2FMBEEF洗手SUBPLOT326洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,MT/2,RBEEF洗手TITLESSB解调信号BEEFXLABELTBEEF洗手洗手FUNCTIONOUTNOISE_NBFC,B,N0,T洗手OUTPUTTHENARROWBANDGAUSSIANNOISESAMPLEWITHSINGLESIDEDPOWERSPECTRUMN0洗手ATCARRIERFREQUENCYEQUALSFCANDBANDWIDTHEUQALSB洗手DTT2T1BEEF洗手FMX1/DTBEEF洗手洗手N_LENLENGTHTBEEF洗手PN0FMXBEEF洗手RNSQRTPRANDN1,N_LENBEEF洗手F,RFT2FT,RNBEEF洗手洗手T,OUTBPFF,RF,FCB/2,FCB/2BEEF洗手洗手洗手例22洗手FMMODULATIONANDDEMODULATION，吃饭MFMM洗手CLEARALLBEEF洗手CLOSEALLBEEF洗手洗手14KF5BEEF洗手FC10BEEF洗手T5BEEF洗手DT0001BEEF洗手T0DTTBEEF洗手洗手信源洗手FM1BEEF洗手MTCOS2PIFMT15SIN2PI03FMTBEEF信源信号洗手MTCOS2PIFMTBEEF信源信号洗手FM调制洗手ASQRT2BEEF洗手MTI1/2/PI/FMSIN2PIFMT3/4/PI/03/FMCOS2PI03FMTBEEFMT的积分函数洗手MTI1/2/PI/FMSIN2PIFMTBEEFMT的积分函数洗手STACOS2PIFCT2PIKFMTIBEEF洗手FIGURE1洗手SUBPLOT311BEEF洗手PLOTT,STBEEFHOLDONBEEF洗手PLOTT,MT,RBEEF洗手XLABELTBEEFYLABEL调频信号洗手洗手SUBPLOT312洗手FSFT2FT,STBEEF洗手PLOTF,ABSSFBEEF洗手AXIS252503洗手XLABELFBEEFYLABEL调频信号幅度谱洗手洗手FM解调洗手FORK1LENGTHST1洗手RTKSTK1STK/DTBEEF洗手END洗手RTLENGTHST0BEEF洗手SUBPLOT313洗手PLOTT,RTBEEFHOLDONBEEF洗手PLOTT,A2PIKFMTA2PIFC,RBEEF洗手XLABELTBEEFYLABEL调频信号微分后包络洗手洗手例23洗手数字基带信号的功率谱密度DIGIT_BASEBANDM洗手CLEARALLBEEFCLOSEALLBEEF洗手TS1BEEF洗手N_SAMPLE8BEEF每个码元的抽样点数洗手DTTS/N_SAMPLEBEEF抽样时间间隔洗手15N1000BEEF码元数洗手洗手T0DTNN_SAMPLE1DTBEEF洗手洗手GT1ONES1,N_SAMPLEBEEFNRZ非归零波形洗手GT2ONES1,N_SAMPLE/2BEEFRZ归零波形洗手GT2GT2ZEROS1,N_SAMPLE/2BEEF洗手MT3SINCT5/TSBEEFSINPIT/TS/PIT/TS波形，吃饭截段取10个码元洗手GT3MT3110N_SAMPLEBEEF洗手DSIGNRANDN1,N1/2BEEF洗手DATASIGEXPANDD,N_SAMPLEBEEF对序列间隔插入N_SAMPLE1个0洗手洗手ST1CONVDATA,GT1BEEFMATLAB自带卷积函数洗手ST2CONVDATA,GT2BEEF洗手D2D1BEEF变成双极性序列洗手DATASIGEXPANDD,N_SAMPLEBEEF洗手ST3CONVDATA,GT3BEEF洗手洗手F,ST1FT2FT,ST11LENGTHTBEEF洗手F,ST2FT2FT,ST21LENGTHTBEEF洗手F,ST3FT2FT,ST31LENGTHTBEEF洗手洗手FIGURE1洗手SUBPLOT321洗手PLOTT,ST11LENGTHTBEEFGRID洗手AXIS0201515BEEFYLABEL单极性NRZ波形BEEF洗手SUBPLOT322BEEF洗手PLOTF,10LOG10ABSST1F2/TBEEFGRID洗手AXIS554010BEEFYLABEL单极性NRZ功率谱密度DB/HZBEEF洗手洗手SUBPLOT323洗手PLOTT,ST21LENGTHTBEEF洗手AXIS0201515BEEFGRID洗手YLABEL单极性RZ波形BEEF洗手SUBPLOT324洗手PLOTF,10LOG10ABSST2F2/TBEEF洗手AXIS554010BEEFGRID洗手YLABEL单极性RZ功率谱密度DB/HZBEEF洗手洗手SUBPLOT325洗手PLOTT5,ST31LENGTHTBEEF洗手AXIS02022BEEFGRID洗手YLABEL双极性SINC波形BEEFXLABELT/TSBEEF洗手SUBPLOT326洗手16PLOTF,10LOG10ABSST3F2/TBEEF洗手AXIS554010BEEFGRID洗手YLABELSINC波形功率谱密度DB/HZBEEFXLABELFTSBEEF洗手洗手洗手洗手FUNCTIONOUTSIGEXPANDD,M洗手将输入的序列扩展成间隔为N1个0的序列洗手NLENGTHDBEEF洗手OUTZEROSM,NBEEF洗手OUT1,DBEEF洗手OUTRESHAPEOUT,1,MNBEEF洗手例24洗手数字基带信号接收示意DIGIT_RECEIVEM洗手CLEARALLBEEF洗手CLOSEALLBEEF洗手洗手N100BEEF洗手N_SAMPLE8BEEF每码元抽样点数洗手TS1BEEF洗手DTTS/N_SAMPLEBEEF洗手T0DTNN_SAMPLE1DTBEEF洗手洗手GTONES1,N_SAMPLEBEEF数字基带波形洗手DSIGNRANDN1,NBEEF输入数字序列洗手ASIGEXPANDD,N_SAMPLEBEEF洗手STCONVA,GTBEEF数字基带信号洗手洗手HT1GTBEEF洗手RT1CONVST,HT1BEEF洗手洗手HT25SINC5T5/TSBEEF洗手RT2CONVST,HT2BEEF洗手洗手FIGURE1洗手SUBPLOT321洗手PLOTT,ST1LENGTHTBEEF洗手AXIS0201515BEEFYLABEL输入双极性NRZ数字基带波形BEEF洗手SUBPLOT322洗手STEMT,ABEEF洗手AXIS0201515BEEFYLABEL输入数字序列洗手洗手SUBPLOT323洗手17PLOTT,0RT11LENGTHT1/8BEEF洗手AXIS0201515BEEFYLABEL方波滤波后输出BEEF洗手SUBPLOT324洗手DDRT1N_SAMPLEN_SAMPLEENDBEEF洗手DDDSIGEXPANDDD,N_SAMPLEBEEF洗手STEMT,DDD1LENGTHT/8BEEF洗手AXIS0201515BEEFYLABEL方波滤波后抽样输出BEEF洗手洗手SUBPLOT325洗手PLOTT5,0RT21LENGTHT1/8BEEF洗手AXIS0201515BEEF洗手XLABELT/TSBEEFYLABEL理想低通滤波后输出BEEF洗手SUBPLOT326洗手DDRT2N_SAMPLE1N_SAMPLEENDBEEF洗手DDDSIGEXPANDDD,N_SAMPLEBEEF洗手STEMT5,DDD1LENGTHT/8BEEF洗手AXIS0201515BEEF洗手XLABELT/TSBEEFYLABEL理想低通滤波后抽样输出BEEF洗手例25洗手部分响应信号眼图示意,PRESM洗手CLEARALLBEEFCLOSEALLBEEF洗手TS1BEEF洗手N_SAMPLE16BEEF洗手EYE_NUM11BEEF洗手洗手N_DATA1000BEEF洗手洗手DTTS/N_SAMPLEBEEF洗手T5TSDT5TSBEEF洗手洗手产生双极性数字信号洗手DSIGNRANDN1,N_DATABEEF洗手DDSIGEXPANDD,N_SAMPLEBEEF洗手部分响应系统冲击响应洗手HTSINCTEPS/TS/1TEPS/TSBEEF洗手HT6N_SAMPLE11BEEF洗手STCONVDD,HTBEEF洗手TT5TSDTN_DATA5N_SAMPLEDTDTBEEF洗手洗手FIGURE1洗手SUBPLOT211BEEF洗手PLOTTT,STBEEF洗手AXIS02033BEEFXLABELT/TSBEEFYLABEL部分响应基带信号BEEF洗手18SUBPLOT212洗手画眼图洗手SSZEROS1,EYE_NUMN_SAMPLEBEEF洗手TTT0DTEYE_NUMN_SAMPLEDTDTBEEF洗手FORK550洗手SSSTKN_SAMPLE1KEYE_NUMN_SAMPLEBEEF洗手DRAWNOWBEEF洗手PLOTTTT,SSBEEFHOLDONBEEF洗手END洗手PLOTTTT,SSBEEF洗手XLABELT/TSBEEFYLABEL部分响应信号眼图BEEF洗手例26洗手2ASK,2PSK，吃饭文件名BINARYMODM洗手CLEARALLBEEF洗手CLOSEALLBEEF洗手洗手A1BEEF洗手FC2BEEF2HZBEEF洗手N_SAMPLE8BEEF洗手N500BEEF码元数洗手TS1BEEF1BAUD/S洗手洗手DTTS/FC/N_SAMPLEBEEF波形采样间隔洗手T0DTNTSDTBEEF洗手LTLENGTHTBEEF洗手洗手产生二进制信源洗手DSIGNRANDN1,NBEEF洗手DDSIGEXPANDD1/2,FCN_SAMPLEBEEF洗手GTONES1,FCN_SAMPLEBEEFNRZ波形洗手洗手FIGURE1洗手SUBPLOT221BEEF输入NRZ信号波形单极性）洗手D_NRZCONVDD,GTBEEF洗手PLOTT,D_NRZ1LENGTHTBEEF洗手AXIS010012BEEFYLABEL输入信号BEEF洗手洗手SUBPLOT222BEEF输入NRZ频谱洗手F,D_NRZFT2FT,D_NRZ1LENGTHTBEEF洗手PLOTF,10LOG10ABSD_NRZF2/TBEEF洗手AXIS225010BEEFYLABEL输入信号功率谱密度DB/HZBEEF洗手洗手2ASK信号洗手19HTACOS2PIFCTBEEF洗手S_2ASKD_NRZ1LTHTBEEF洗手洗手SUBPLOT223洗手PLOTT,S_2ASKBEEF洗手AXIS0101212BEEFYLABEL2ASKBEEF洗手洗手F,S_2ASKFT2FT,S_2ASKBEEF洗手SUBPLOT224洗手PLOTF,10LOG10ABSS_2ASKF2/TBEEF洗手AXISFC4FC45010BEEFYLABEL2ASK功率谱密度DB/HZBEEF洗手洗手FIGURE2洗手2PSK信号洗手D_2PSK2D_NRZ1BEEF洗手S_2PSKD_2PSK1LTHTBEEF洗手SUBPLOT221洗手PLOTT,S_2PSKBEEF洗手AXIS0101212BEEFYLABEL2PSKBEEF洗手洗手SUBPLOT222洗手F,S_2PSKFT2FT,S_2PSKBEEF洗手PLOTF,10LOG10ABSS_2PSKF2/TBEEF洗手AXISFC4FC45010BEEFYLABEL2PSK功率谱密度DB/HZBEEF洗手洗手2FSK洗手S_2FSKACOS2PIFCTINT2D_NRZ1BEEF洗手SD_2FSK2D_NRZ1BEEF洗手洗手S_2FSKACOS2PIFCT2PISD_2FSK1LENGTHTTBEEF洗手SUBPLOT223洗手PLOTT,S_2FSKBEEF洗手AXIS0101212BEEFXLABELTBEEFYLABEL2FSK洗手SUBPLOT224洗手F,S_2FSKFT2FT,S_2FSKBEEF洗手PLOTF,10LOG10ABSS_2FSKF2/TBEEF洗手AXISFC4FC45010BEEFXLABELFBEEFYLABEL2FSK功率谱密度DB/HZBEEF洗手例27洗手QPSKBEEF洗手CLOSEALLBEEF洗手洗手M4BEEF洗手20TS1BEEF洗手FC10BEEF洗手N_SAMPLE16BEEF洗手N_NUM100BEEF洗手洗手DT1/FC/N_SAMPLEBEEF洗手T0DTN_NUMTSDTBEEF洗手TDTLENGTHTBEEF洗手洗手PY1FZEROS1,LENGTHTBEEF功率谱密度1洗手PY2FZEROS1,LENGTHTBEEF功率谱密度2洗手洗手FORPL1100输入100段N_NUM个码字的波形，吃饭为了使功率谱密度看起来更加平滑，吃饭洗手可以取这100段信号功率谱密度的平均洗手D1SIGNRANDN1,N_NUMBEEF洗手D2SIGNRANDN1,N_NUMBEEF洗手GTONES1,FCN_SAMPLEBEEF洗手洗手QPSK调制洗手S1SIGEXPANDD1,FCN_SAMPLEBEEF洗手S2SIGEXPANDD2,FCN_SAMPLEBEEF洗手B1CONVS1,GTBEEF洗手B2CONVS2,GTBEEF洗手S1B11LENGTHS1BEEF洗手S2B21LENGTHS2BEEF洗手洗手ST_QPSKS1COS2PIFCTS2SIN2PIFCTBEEF洗手洗手S2_DELAYONES1,N_SAMPLEFC/2S21ENDN_SAMPLEFC/2BEEF洗手ST_OQPSKS1COS2PIFCTS2_DELAYSIN2PIFCTBEEF洗手洗手经过带通后，吃饭再经过非线性电路洗手FY1FT2FT,ST_QPSKBEEF洗手FY2FT2FT,ST_OQPSKBEEF洗手TY1BPFF,Y1F,FC1/TS,FC1/TSBEEF洗手TY2BPFF,Y2F,FC1/TS,FC1/TSBEEF洗手SUBPLOT221BEEF洗手PLOTT,Y1BEEFXLABELTBEEFYLABELQPSK波形BEEF洗手AXIS5151616BEEFTITLE经过带通后的波形BEEF洗手洗手SUBPLOT222洗手PLOTT,Y2BEEFXLABELTBEEFYLABELOQPSK波形BEEF洗手AXIS5151616BEEFTITLE经过带通后的波形BEEF洗手洗手21经过非线性电路洗手Y115TANH2Y1BEEF洗手Y215TANH2Y2BEEF洗手FY1FT2FT,Y1BEEF洗手FY2FT2FT,Y2BEEF洗手PY1FPY1FABSY1F2/TBEEFQPSK不同段信号功率谱密度相加洗手PY2FPY2FABSY2F2/TBEEFOQPSK不同段信号功率谱密度相加洗手END洗手PY1FPY1F/100BEEFQPSK100段功率谱密度平均洗手PY2FPY2F/100BEEFOQPSK100段功率谱密度平均洗手洗手SUBPLOT223BEEF洗手PLOTF,10LOG10PY1FBEEFXLABELFBEEFYLABELQPSK功率谱密度DB/HZBEEF洗手TITLE经过非线性电路后的功率谱密度BEEFAXIS15153010BEEF洗手洗手SUBPLOT224洗手PLOTF,10LOG10PY2FBEEFXLABELFBEEFYLABELOQPSK功率谱密度DB/HZBEEF洗手TITLE经过非线性电路后的功率谱密度BEEFAXIS15153010BEEF洗手洗手FIGURE2洗手X2012BEEF洗手Y15TANH2XBEEF洗手PLOTX,YBEEFTITLE非线性电路的输入输出函数BEEF洗手例28洗手DEMOFORUANDALAWFORQUANTIZE，吃饭FILENAMEA_U_LAWM洗手U255YLN1UX/LN1U洗手A876YAX/1LNA00洗手OUTI,11BEEF洗手ELSE洗手OUTI,10BEEF洗手END洗手洗手IFABSXI0BEEF洗手ELSE洗手TMPFLOORABSXIST/STEPBEEF洗手TDEC2BINTMP,448BEEF函数DEC2BIN输出的是ASCII字符串，吃饭48对应0洗手OUTI,58T14BEEF洗手END洗手END洗手OUTRESHAPEOUT,1,8NBEEF洗手洗手FUNCTIONOUTPCM_DECODEIN,V洗手DECODETHEINPUTPCMCODE洗手ININPUTTHEPCMCODE8BIT/SAMPLE洗手VQUANTIZEDLEVEL洗手NLENGTHINBEEF洗手洗手INRESHAPEIN,8,N/8BEEF洗手SLOT10BEEF洗手SLOT232BEEF洗手SLOT364BEEF洗手SLOT4128BEEF洗手SLOT5256BEEF洗手SLOT6512BEEF洗手SLOT71024BEEF洗手SLOT82048BEEF洗手洗手STEP12BEEF洗手STEP22BEEF洗手STEP34BEEF洗手STEP48BEEF洗手STEP516BEEF洗手STEP632BEEF洗手STEP764BEEF洗手25STEP8128BEEF洗手洗手洗手FORI1N/8洗手SS2INI,11BEEF洗手TMPINI,24INI,32INI,41BEEF洗手STSLOTTMPBEEF洗手DTINI,58INI,64INI,72INI,8STEPTMP05STEPTMPBEEF洗手OUTISSSTDT/4096VBEEF洗手END洗手例30洗手信道失真示意，吃饭洗手CLEARALLBEEFCLOSEALLBEEF洗手洗手TS1BEEF洗手N_SAMPLE8BEEF每个码元的抽样点数洗手DTTS/N_SAMPLEBEEF抽样时间间隔洗手N1000BEEF码元数洗手T0DTNN_SAMPLE1DTBEEF洗手洗手GT1ONES1,N_SAMPLEBEEFNRZ非归零波形洗手GT2ONES1,N_SAMPLE/2BEEFRZ归零波形洗手GT2GT2ZEROS1,N_SAMPLE/2BEEF洗手洗手MT3SINCT5/TSBEEFSINPIT/TS/PIT/TS波形，吃饭截段取10个码元洗手GT3MT3110N_SAMPLEBEEF洗手洗手洗手DSIGNRANDN1,N1/2BEEF洗手DATASIGEXPANDD,N_SAMPLEBEEF对序列间隔插入N_SAMPLE1个0洗手洗手ST1CONVDATA