Description: 5 In the three path Rayleigh channel, for direct sequence spread spectrum:
(1) Please design a specific DS-CDMA code division guide-assisted channel estimation, receiver, etc were used to benefit the merger, the maximum ratio combining. With the Simulink simulation, BPSK BER performance measure, draw-bit signal to noise ratio and channel estimation mean square error of the curve, draw the signal to noise ratio and bit error rate curve, please explain in bit error rate 0.01, the two methods are combined performance of the different physical meaning.
(2) frequency has been set up synchronization, a specific design of DS-CDMA single-stop sliding correlation method of time synchronization, simulation with Simulink (S-Function code their own way), analyze the design of time synchronization accuracy, draw bit signal to noise ratio and capture probability curve.
(3) set time has been synchronized, a specific design of DS-CDMA frequency synchronization method, simulation using Simulink (
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5\dsfreqsyn.m
.\dstimesyn.m
.\EGC.mdl
.\EGC_BER.fig
.\EGC_MSE_BER.m
.\freqsyn.fig
.\fresyn.mdl
.\fresyn_.m
.\MRC.mdl
.\MRC_BER.fig
.\MRC_EBR.m
.\MSE.fig
.\pro5timesyn.m
.\timesyn.mdl
.\timesyn_.fig
.\分析.docx
5
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