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OFDMxitongjiangdifengpingbiyanjiu
正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。(Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc)
- 2017-05-07 16:48:57下载
- 积分：1
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ST
说明： 本程序是基于S变换的短时电能质量扰动检测方法实现的，用于分析电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析(This procedure is based on the S transform short-term power quality disturbance detection method implemented for the analysis of voltage sag magnitude, phase transition, duration, and harmonic content analysis)
- 2011-03-08 16:37:45下载
- 积分：1
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MATLAB-communication-with-ARDUINO
matlab与Arduino通信的源程序。(Matlab and Arduino communication source program
)
- 2013-03-06 09:33:45下载
- 积分：1
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A-Predictor-Corrector-
说明： 预估校正控制，通过一种数值近似的计算方法不断逼近，从而实行控制计算。(A Predictor-Corrector )
- 2011-02-26 10:06:27下载
- 积分：1
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adpmedian_h
该函数为MATLAB编写，实现功能为中值滤波，中值滤波能更好地保留图像细节，对盐椒噪声有很好的去除效果。(The MATLAB function is prepared to achieve function, median filtering, median filtering can reserve the image detail, and good salt pepper noise removal.)
- 2010-05-26 20:59:03下载
- 积分：1
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abc.m
some things on divide with data some things on divide with data some things on divide with data some things on divide with data some things on divide with data some things on divide with data some things on divide with data some things on divide with data some things on divide with data
- 2013-10-27 04:59:21下载
- 积分：1
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AR_example
时间预测模型AR，AR模型的算法，对数据进行预测。(Time prediction model AR, AR model algorithm, the data to predict.)
- 2020-12-21 14:49:07下载
- 积分：1
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Monte_Carlo
蒙特卡洛仿真
运用蒙特卡罗方法建立随机仿真模型，对已做手术病人的出院时间进行模拟，从而得到第二天拟出院病人数。再根据一定的优先规则建立基于优先级的病床分配模型，确定第二天应该安排哪些病人住院。(Monte Carlo simulation)
- 2010-08-27 14:49:44下载
- 积分：1
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matlab
this is very good iris recognition code iris segmentation
- 2010-10-30 13:24:21下载
- 积分：1
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Chap_9
西蒙赫金的《自适应滤波原理》一书的matlab程序，现在继续上传第9章的程序，
大家学习交流，觉得有用的自己下载，(西蒙赫payment principle of adaptive filtering, one book matlab procedure, we shall now continue From Chapter 9 of the procedure, everyone learning exchanges, and find useful to download their own,)
- 2008-04-15 12:11:21下载
- 积分：1
