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4下载：
利用Matlab仿真脉冲编码调制（PCM）及A律、μ律PCM对声音进行压缩编解码过程。
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。波形编码器的作用是对采样后的信号样本进行量化和编码。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
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数字通信系统中采用基带传输和频带传输[ 1, 2 ] ,在抽样判决器之前,信号叠加了信道噪声. 本文利用
Matlab软件仿真[ 3, 4 ]分析了在判决器前叠加了高斯噪声后,信噪比与系统的误码率之间的关系.-Digital communication system using baseband transmission and band transmission [1, 2], in a sample before the decision device, the signal super
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GMSK调制程序，采用I/Q调制，生成基带GMSK信号，供大家学习和参考！-GMSK modulation procedures, the use of I/Q modulation, to generate baseband GMSK signal for them to learn from and reference!
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this file has codes that describes how to ccmpute the signal spectrum , the power spectrum, how to calculate the autocorrelation sequence of a signal, how to calculate the autoregressive coeffecients of a signal,and how to reduce the noisy elements i
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This package contains scr ipt to calculate aliasing for given time domain signal. scr ipt to plot in time domain the function: x(t)=A0cos(2pif0t)+A1cos(2pif1t)
where fs1=300 Hz and fs2=150 Hz (sampling rate)
A0 and A1 are amplitude s signal (a
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[ya,ind,sd]=FA_quant(x,l)
This fuction performs Forward adaptive quantisation of the input vector x
using the block size specified in l
It returns the quantised signal ya, the quantised index ind for each sample of ya
and the quantiser
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块自适应处理算法先有采样快拍数据计算采样协方差矩阵，再来计算自适应权矢量。典型的块自适应处理算法为采样矩阵求逆(SMI)算法。仿真了采样矩阵求逆法(SMI)的波束形成方向图旁瓣的高低受信号快拍数的影响。-Block adaptive processing algorithms prior sample snapshot data of the sampling covariance matrix, again computing adaptive weight vector. A typical
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RNA 和 DNA序列模拟 基因建模 数值模拟 采用matlab 编写 能计算几千个 基因点的特性和行为-In one type of gene expression analysis, fluorescently tagged messenger RNA from different cells are hybridized to a microscopic array of thousands of complimentary DNA spots that correspond to dif
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可以用来计算脑电信号肌电信号的样本熵，很好用-EEG can be used to calculate the entropy of a sample of EMG signal, that is great
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基于matlab。利用FFT计算信号的频谱并与信号的真实频谱的抽样比较。
脚本文件T2F.m定义了函数T2F，计算信号的傅立叶变换。-Based on matlab. Calculated using FFT frequency spectrum and the true spectrum of the signal sample comparison. scr ipt file defines a function T2F.m T2F, calculate the Fourier tran
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胡广书数字信号处理书的全部matlab仿真代码，从基本的信号采样到具体的信号处理实例-Hu Guang book book full digital signal processing matlab simulation code, the signal from the basic signal processing sample to a specific instance of
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该文档详细讲述了关于matlab在通信仿真中的具体应用，包括模拟调制中的信号处理以及数字信号的抽样量化过程的matlab实例-This document describes in detail the communication matlab simulation on the specific applications, including analog modulation of the signal processing and digital signal sample quantiza
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matlab数字信号处理实例；MATLAB下的数字信号处理实现示例-matlab digital signal processing examples MATLAB under the sample implementation of digital signal processing
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利用SIMULINK和M函数相结合的方式仿真BFSK 调制在多路径瑞丽衰落信道中的传输性能。其中 source产生速率为10Kbit/s、帧长度为1秒的二进制数据源data,并且通过BFSK产生调制信号。BFSK调制的频率间隔为24KHz, BPSK调制符号的样点数为2，调制信号通过多径瑞利衰落信道，移动终端相对运动速率为40公里/小时，接收端对信号进行解调，并把解调后的信号和原始数据信号相比较计算误比特率。最后Sink模块根据SNR与误比特率的关系绘制曲线。-And M functions u
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数字信号处理的MATLAB实现一书，作者万永革。包括书中所有的例程代码-MATLAB digital signal processing to achieve a book, the author WAN Yong-leather. The book includes all of the sample code
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是信号处理的基础，是一种双隐层反向传播神经网络，matlab程序运行时导入数据文件作为输入参数，是机器学习的例程，包含优化类的几个简单示例程序，FIR 底通和带通滤波器和IIR 底通和带通滤波器。-Is the basis of the signal processing, Is a two hidden layer back propagation neural network, Import data files as input parameters matlab program is r
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包括广义互相关函数GCC时延估计，采用波束成形技术的BER计算，包含优化类的几个简单示例程序，使用matlab实现智能预测控制算法，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块，包括调制，解调，信噪比计算。- Including the generalized cross-correlation function GCC time delay estimation, By applying the beam forming technology of BER Optimization
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线性调频脉冲压缩的Matlab程序,一些自适应信号处理的算法，基于matlab GUI界面设计,分析了该信号的时域、频域、倒谱，循环谱等,数学方法是部分子空间法，包含特征值与特征向量的提取、训练样本以及最后的识别。-LFM pulse compression of the Matlab program, Some adaptive signal processing algorithms, Based on matlab GUI interface design, Analysis of the
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对信号进行频谱分析时，数据样本应有足够的长度，一般FFT程序中所用数据点数与原含有信号数据点数相同，这样的频谱图具有较高的质量，可减小因补零或截断而产生的影响。-The signal spectrum analysis, data sample should be of sufficient length, the general FFT program used in the data points with the same number of data containing the sig
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Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, A fluid manifold learning algorithm (good use), Is the basis of the signal processing.
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