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IS95qianxianglianlu

于 2010-11-14 发布文件大小:3916KB

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下载积分: 1 下载次数: 32

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代码说明：

cdma前向链路，也就是下行链路的仿真，使用的软件是MATLAB(cdma forward link, that is, downlink simulation, using the software MATLAB)

文件列表：

IS95前向链路系统
................\Demodulator.m,1035,2009-03-22
................\main_IS95_forward.m,5613,2009-03-22
................\Modulator.m,1804,2009-03-22
................\PacketBuilder.m,1106,2009-03-22
................\PNGen.m,791,2009-03-22
................\ReceiverHD.m,893,2009-03-22
................\ReceiverSD.m,922,2009-03-22
................\SimData.mat,4017935,2010-10-23
................\SoftVitDec.m,2109,2009-03-22
................\TempResults.mat,310,2010-10-23
................\VitDec.m,2107,2009-03-22
................\VitEnc.m,578,2009-03-21

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说明：在本系统中，信息序列在先经过FSK调制，经过截止频率为25kHz的低通滤波器后（把信号频率限制在25kHz），再进入混频器搬移到更高的频率发送出去，在接收端，用与发送端同步的跳频信号对其进行变频（跳频的解跳处理在此进行），取下边频，然后进行FSK的解调(In this system, the message sequence prior through FSK modulation, through the cut-off frequency of 25kHz after low-pass filter (to limit the frequency 25kHz), and then move into the mixer to a higher frequency to send out, at the receiving end used with frequency hopping synchronization signal transmitter carried on their conversion (FH' s solution to deal with this for jumping), take down side frequencies, then the demodulation of FSK)

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