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Digital-transfer-DDC-and-DUC

于 2020-12-13 发布文件大小:331KB

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数字变频器的设计，实验中用到的所有完整的工程文件: （1）数字上变频的设计，完整的工程文件包含： rrc_cic_impulse.mdl rrc_cic_data.mdl qpsk_modulate.mdl （2）数字下变频的设计，完整的工程文件包含： received_if.mdl demod.mdl halfband.mdl(Digital conversion: 1.DUC:rrc_cic_impulse.mdl rrc_cic_data.mdl qpsk_modulate.mdl 2.DDC:received_if.mdl demod.mdl halfband.mdl)

文件列表：

test7
.....\cic.mdl,354765,2009-08-04
.....\demod.mdl,180223,2008-11-20
.....\halfband.mdl,385488,2009-08-04
.....\qpsk_modulate.mdl,786576,2008-12-17
.....\received_if.mdl,144262,2008-11-20
.....\rrc_cic_data.mdl,409951,2008-12-17
.....\rrc_cic_impulse.mdl,444873,2008-11-20

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RS_BCH
说明：本压缩包收集了较为经典的几种关于BCH和RS编译码的matlab程序，以及通信系统的仿真等。供大家参考学习，搬运整理而得(This compression package collects several classical matlab programs about BCH and RS coding and decoding, as well as the simulation of communication system. For your reference and study, handling and sorting out)

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ldpc_ofdm_simulation
这是整套的ldpc-ofdm仿真模拟代码，可以运行的，输出的是误码率图像(This is the whole set of ldpc-ofdm simulation code, you can run the output image is the bit error rate)

2020-10-12 11:07:33下载

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123
针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

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D2D
D2D的自适应链路仿真，可根据信道状态，自选自调制方式(D2D adaptive link simulation, according to the channel state, optional self modulation)

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Blank-Catedra
Catedra撰写的CGFFT程序，用于介质目标的电磁场分析(the cg-fft code Catedra, can be used for EM scattering dielectric objects)

2016-03-31 20:02:33下载

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dsp
西安电子科技大学数字信号处理上机作业,用matlab实现(the dsp experiment of Xidian University,including the application of FFT and DTFT,which is achieved by the matlab)

2012-06-02 00:02:24下载

积分：1
sttc4
一个MIMO系统，发射方采用空时网格码编码，信道为锐利衰落，接收端已知信道情况。程序很详细，对做毕设的很有帮助。(A MIMO system, the launch party use of space-time trellis coding, channel for the sharp decline of the receiving end of known channel case. Procedures in great detail, the complete set of very useful to do.)

2020-06-29 04:40:02下载

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PSKuniformFading
PSK Uniform Fading using SNR and BER

2009-10-18 18:57:24下载

积分：1
vandemonde
该函数能产生一个任意阶的范德蒙德数组,可以用在无线通信等诸多领域。(This matlab function will generate an arbitrary-way Vandermonde arry.)

2017-11-22 10:49:20下载

积分：1

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Digital-transfer-DDC-and-DUC

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