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HJQE2

于 2019-03-26 发布

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下载积分: 1 下载次数: 1

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代码说明：

说明： pcm编码有关线性,A律,mu律的pcm编码的matlab实现(Matlab implementation of pcm coding for pcm coding related to Linear, A-Law and mulaw)

文件列表：

5alaw.asv, 1040 , 2009-04-02
alaw_speech.wav, 110078 , 2009-04-02
main.m, 166 , 2009-04-02
mulaw.asv, 1186 , 2009-04-02
mulaw.m, 1135 , 2009-04-02
music.wav, 847384 , 2009-04-02
music.wav.a, 423663 , 2009-04-02
music.wav.p, 423663 , 2009-04-02
music.wav.u, 423663 , 2009-04-02
pcm.asv, 889 , 2009-04-02
pcm.m, 336 , 2009-04-02
pcm_gui.asv, 9742 , 2009-04-02
pcm_gui.fig, 13890 , 2009-04-02
pcm_gui.m, 9778 , 2009-04-02
Qalaw.m, 988 , 2009-04-02
speech.wav, 220110 , 2009-04-02
speech.wav.a, 110033 , 2009-04-02
speech.wav.p, 110033 , 2009-04-02
speech.wav.u, 110033 , 2009-04-02
unalaw.asv, 792 , 2009-04-02
unalaw.m, 845 , 2009-04-02
unmulaw.asv, 932 , 2009-04-02
unmulaw.m, 984 , 2009-04-02
unpcm.asv, 117 , 2009-04-02
unpcm.m, 139 , 2009-04-02

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123
为了提高MIMO-OFDM系统的数据传输率和频谱利用率,提出一种新的自适应算法。该算法在保证信道质量所需误码率和总发射功率的前提下,按照各个子载波衰落程度动态地分配比特和功率,使系统的总数据传输速率最大。理论分析得出,该算法降低了系统运算复杂度,能很大地改善系统的整体性能。(In order to improve data transmission rates and spectrum efficiency of MIMO-OFDM systems,this paper proposes a new adaptive algorithm. While the channel transmission quality to meet the requirements of a certain target BER(bit error rate) and total emissive power,according to each sub-carrier decline degree to adjust each sub-carrier modulation method freely,try to minimize the total data rate of system. Theory analysis shows the algorithm can reduce system complexity and improve overall performance of the ...)

2011-09-05 15:22:03下载

积分：1
OFDM_Channel-estimation
OFDM(正交频率调制)实现多载波调制基本思想是将带宽信道分解成许多并行的窄子信道，是每个子信道的想干带宽，从而实现平稳衰落。搭建了完整的OFDM信道链路系统，运用三种不同的信道估计方法(LS信道估计、DFT信道估计、Improved-DFT信道估计)，并对AWGN理想信道和衰落信道误码情况进行了仿真和比较。(OFDM (Orthogonal Frequency Modulation) multicarrier modulation basic idea bandwidth channel is decomposed into a number of parallel narrow subchannels, each subchannel wanted bandwidth, in order to achieve a smooth fading. Build a complete OFDM channel link system, the use of three kinds of different channel estimated method (LS channel estimated, to the DFT letter Tao estimates, Improved-the DFT letter Road estimated), and AWGN ideal letter Road and fading channel bit error situation conducted a simulation and comparison .)

2012-10-17 10:56:16下载

积分：1
matlab仿真.tar
说明：了解多模光纤传播模式,了解电场磁场分布，了解模式光斑(Understand the multimode fiber propagation mode, understand the electric field magnetic field distribution, and understand the pattern spot)

2019-01-18 09:39:37下载

积分：1
mo
说明：基于matlab函数对模拟信号的调制，可以熟悉的掌握用matlab对模拟信号的调制、解调。(Matlab function-based modulation of the analog signal can be familiar with the master using matlab analog signal modulation, demodulation.)

2012-06-11 11:17:49下载

积分：1
ptsm
ofdm的采用的改进pts，即m序列pts方法来降低papr(Improvement of the adoption of OFDM pts, namely m sequence pts methods to reduce the PAPR)

2008-05-19 16:23:23下载

积分：1
understanding-LTE-with-MATLAB
《全面详解LTE》一书配套代码，代码完整，但是可能存在殷matlab版本问题而无法运行的情况(Complete Code for "Comprehensive and Detailed Explanation of LTE")

2019-05-28 15:23:33下载

积分：1
efficient_mimo_systems
this book describes hwo to chose optimal training sequence for an efficient mimo channel

2013-05-24 21:30:01下载

积分：1
模拟调制解调matlab仿真实验代码
说明：模拟调制解调matlab仿真实验代码，包含AM/DSB/VSB/SSB四种调制方式(Matlab simulation experiment code of analog modulation and demodulation)

2020-05-30 12:18:00下载

积分：1
OFDM
说明：通过C++语言实现了OFDM系统的仿真，包裹调制、子载波映射、循环前缀、频域时域映射，解调等等，代码简单易懂(The simulation of OFDM system is realized by C + +, including package modulation, subcarrier mapping, cyclic prefix, frequency domain time domain mapping, demodulation and so on. The code is simple and easy to understand)

2020-03-13 16:20:54下载

积分：1
4qam
4QAM(QPSK)的调制解调以及计算误码率，最后将结果输出至表格。适合新手参考(The modulation and demodulation of 4QAM (QPSK) and the calculation of bit error rate, and finally output the result to the form. Suitable for novice)

2018-06-23 17:04:29下载

积分：1

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