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Pulse-Code-Modulation
脉冲编码调制（PCM，Pulse Code Modulation）是一种将模拟语音信号转换成数字信号的编码方式，从数学上来看，量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合，编码就是用一组二进制数来表示这些映射后的有限数。
国际标准化的PCM采用折叠二进制码，符合长途电话质量。根据量化方法的不同，PCM 可分为均匀量化PCM 和对数PCM 两大类，对数PCM中，A律和μ律编码都已被定为国际标准。
本程序实现了A律、μ律以及均匀量化三种PCM，并带有GUI界面，方便使用。可以计算编码后的码率、运行时间以及最小均方误差。(Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding, from the mathematical point of view, the process is to quantify the magnitude of the value of an infinite number of continuous mapping into a discrete set of the limited range of values number set, code is a set of binary digits, said after a limited number of these maps.
By folding the International Standardization of PCM binary code, in line with long-distance telephone quality. According to the different quantitative methods, PCM can be divided into uniform quantization PCM PCM and the number of two categories, on the number of PCM, A law and μ-law code have been designated as international standards.
A law implemented in this program, μ law and the uniform quantization of three PCM, with a GUI interface, easy to use. Encoded bit rate can be calculated, running time and minimum mean square error.
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- 2011-02-05 23:10:39下载
- 积分：1
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optim_codes
optimization codes for matlab
- 2013-12-03 00:23:42下载
- 积分：1
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wanzhengchengxu
信号在信道进行传输时，经常会出现串扰，采用基于最大似然序列估计（MLSE）的电子色散均衡器的方法，克服光纤通信中的由各种色散引起的码间干扰。
研究基于最大似然序列估计（MLSE）的均衡器，采用维特比算法实现，用matlab仿真出采用MLSE后的性能指标（眼图和误码率）的提升。
(Signal transmission channel, often occur crosstalk, based on the maximum likelihood sequence estimation (MLSE) method for electronic dispersion equalizer, overcome the optical fiber communication in a variety of dispersion caused by intersymbol interference.
Research Based on the maximum likelihood sequence estimation (MLSE) equalizer, using the Vitby algorithm, the performance index using MLSE after matlab simulation (eye diagram and bit error rate) promotion.)
- 2014-07-31 10:12:36下载
- 积分：1
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卡尔曼滤波程序及MATLAB仿真
利用扩展卡尔曼滤波实现对雷达数据的处理，平滑雷达数据(Radar data processing is realized by extended Calman filtering and radar data is smoothed)
- 2017-08-08 12:49:18下载
- 积分：1
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Hertzian_Dipole
Calculate the field distribution of Hertzian Dipole
- 2008-05-25 21:25:33下载
- 积分：1
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dct
说明： 离散余弦变换,实现数据的压缩以及相应噪声的去除(Discrete cosine transform, data compression and noise removal of the corresponding)
- 2011-03-06 19:52:32下载
- 积分：1
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pr
说明： image noise identification system..
when given a noisy image,program tells us the type of noise which is present in image
- 2011-12-13 17:59:29下载
- 积分：1
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pcasift-training-matlab---
PCA-SIFT算法中用于训练矩阵的程序(training matrix in PCA-SIFT)
- 2012-02-03 11:12:35下载
- 积分：1
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LinkPredictionMatlab
链路预测程序,主程序，包含31个链路预测的函数代码(link prediction)
- 2016-04-22 08:21:01下载
- 积分：1
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csma_cd
说明： 802.11无线网络通信中基本CSMA/CA基本方式和RTS/CTS的仿真实现比较。(802.11 wireless network communications in the basic CSMA/CA basic mode and RTS/CTS comparison of the simulation.)
- 2008-11-12 11:27:39下载
- 积分：1
