Description: 数字滤波器matlab的原代码, 模拟信号采样频谱图-digital filter Matlab the original code, analog signal sampling frequency spectrum Platform: |
Size: 2048 |
Author:刘博 |
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Description: 本程序可以对一个模拟信号进行数字化，使用的是PCM即脉冲编码调制，其结果是将样值转化为8位PCM编码。现今语音编码大多数采用这类编码方法-This procedure can be an analog signal to digital, using pulse code modulation or PCM, and the result is kind of value will be translated into eight PCM coding. Most of the current speech coding to adopt this type of coding method Platform: |
Size: 2048 |
Author:徐健 |
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Description: 模拟低通滤波器和数字低通滤波器的设计代码，已经通过编译和运行-Analog low-pass filter and digital low-pass filter design code has been compiled and run through Platform: |
Size: 1024 |
Author:liuhui |
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Description: 脉冲编码调制（PCM）用于在数字传输媒体上传送模拟信号，在PCM中，首先对模拟信号以高于其带宽两倍的奈奎斯特率进行采样，然后对所得样本进行量化。采用不同量化级别生成的PCM编码会影响接收器重建模拟信号的质量。 -Pulse code modulation (PCM) for the media in the digital transmission of analog signal transmission in the PCM, the first analog signal to more than the Nyquist rate of twice the bandwidth sample, and then to quantify the samples. Using different quantization level generated PCM coding receiver will affect the quality of the reconstruction of analog signals. Platform: |
Size: 1024 |
Author:jack |
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Description: matlab代码，数字图像矩阵数据的显示及其傅立叶变换，二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响，采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波-matlab code, digital image data display matrix and its Fourier transform, two-dimensional discrete cosine transform image compression, using gray-scale transformation method to enhance image contrast, histogram homogenization, analog image by Gaussian white noise and salt and pepper the impact of noise, using two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering Platform: |
Size: 2048 |
Author:wang |
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Description: 基于Matlab的典型图像增强算法的源码
程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-They are typical Matlab-based image enhancement algorithm.
Procedure Code Description
P0301: digital image data display matrix and its Fourier transform
P0302: Two-dimensional discrete cosine transform image compression
P0303: the use of gray-scale transformation method of contrast-enhanced images
P0304: Histogram of homogenization
P0305: analog image by Gaussian white noise and salt and pepper noise
P0306: A two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering
P0307: the use of MATLAB s function affected by noise interference filter2 images mean filter
P0308: Image Adaptive Weiner Filter
P0309: the use of five kinds of different gradient enhanced image sharpening method
P0310: Image of high-pass filtering and mask treatment
P0311: the use of Butterworth (Butterworth) low pass filter on the image noise by smoothing treatment
P0312: the use of Butterworth (Butterworth) high-pass filter for sharpening Platform: |
Size: 21504 |
Author:panghuanzhi |
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Description: PCM编码把模拟信号转换为数字编码，在通信电路的目的地，脉冲调制解调器将二进制的数字编码重新转换成那些在调制器中有相同量子水平的脉冲。-PCM encoding to convert analog signals to digital encoding, the destination of the communication circuit, the binary pulse modem re-converted into digital code modulator in which the quantum level of the same pulse. Platform: |
Size: 3072 |
Author:蔡晓 |
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Description: 覆盖了全书的信号与线性系统、随机过程、模拟调制、模拟数字转换、基带数字传输、带限信道的数字传输、载波调制的数字传输、信道容量和编码、扩频通信系统以及数字调制方法的SIMULINK仿真的 源代码-Book covers the signal and linear systems, stochastic processes, analog modulation, analog-to-digital conversion, base-band digital transmission, band-limited digital transmission channel, the digital transmission carrier modulation, channel capacity and coding, spread spectrum communication systems, and digital modulation SIMULINK simulation method source code Platform: |
Size: 89088 |
Author:xiehui |
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Description: 模拟数字基带系统在matlab下的实现，包括输入输出信号的码型，功率谱密度，眼图及误码率-Analog-to-digital base-band system in the realization of matlab, including the code input and output signal type, the power spectral density, eye diagram and bit error rate Platform: |
Size: 1024 |
Author:张飞 |
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Description: matlab程序，可实现脉冲编码调制，模拟信号的数字传输：抽样、量化、编码-matlab program to achieve pulse code modulation, digital transmission of analog signals: sampling, quantization, coding Platform: |
Size: 3072 |
Author:xjq |
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Description: 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PCM两大类，对数PCM中，2Aμ律和律编码都已被定为国际标准。-Matlab simulation using pulse code modulation (PCM) and the A law, μ law PCM codec for voice compression process.
Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding. The role of the encoder waveform is sampled signal sample quantization and coding. From the mathematical point of view, the process is to quantify the magnitude of the value of a continuous set of infinite number of maps into a finite number of discrete set of amplitude values , encoding is to use 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 in, 2Aμ law and legal codes have been designated as international standards. Platform: |
Size: 954368 |
Author:tanii |
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Description: Digital Predistortion of Nonlieaner RF Power Amplifier with Memory Effects.
This M code simulates a DPD technique linearization for a AB-class nonlinear HPA with memory effects. Here we consider a memory polynomial predistorter to modeling nonlinearity characteristics and memory effects of a HPA.Simulation procedures divided into three separate parts:
1)Analog imperfection compensation for the direct upconversion transmitter
2)Design a DPD based on a memory polynomial predistorter
3)Performance evaluation via a number of parameters such as:EVM,PSD,SNR,
-Digital Predistortion of Nonlieaner RF Power Amplifier with Memory Effects.
This M code simulates a DPD technique linearization for a AB-class nonlinear HPA with memory effects. Here we consider a memory polynomial predistorter to modeling nonlinearity characteristics and memory effects of a HPA.Simulation procedures divided into three separate parts:
1)Analog imperfection compensation for the direct upconversion transmitter
2)Design a DPD based on a memory polynomial predistorter
3)Performance evaluation via a number of parameters such as:EVM,PSD,SNR,
Platform: |
Size: 19976192 |
Author:shahram |
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Description: 最短距离问题，利用遗传算法解决。这是一个完整的数模题目，有题目，思路，解决方法及源代码，希望大家能够喜欢-The shortest distance problem, the use of genetic algorithms to solve. This is a complete digital-analog problem, there are questions, ideas, solutions and source code, I hope everyone can enjoy Platform: |
Size: 4096 |
Author:李磊 |
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Description: 使用高阶累积量对MPSK信号进行调制识别，用于时频分析算法，代码里有很完整的注释和解释，实现了对10个数字音的识别，一种流形学习算法（很好用），随机调制信号下的模拟ppm，关于小波的matlab复合分析，利用贝叶斯原理估计混合logit模型的参数。- Using high-order cumulants of MPSK signal modulation recognition, For time-frequency analysis algorithm, Code, there are very complete notes and explanations To achieve the recognition of 10 digital sound, A fluid manifold learning algorithm (good use), Random ppm modulated analog signal under Matlab wavelet analysis on complex, Bayesian parameter estimation principle mixed logit model. Platform: |
Size: 5120 |
Author:aketm |
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Description: 能量熵的计算，课程设计时编写的matlab程序代码，验证可用，一些自适应信号处理的算法，基于人工神经网络的常用数字信号调制，包含CV、CA、Single、当前、恒转弯速率、转弯模型，随机调制信号下的模拟ppm，matlab编写的元胞自动机。- Energy entropy calculation, Course designed to prepare the matlab program code, Verification is available, Some adaptive signal processing algorithms, The commonly used digital signal modulation based on artificial neural network, It contains CV, CA, Single, current, constant turn rate, turning model, Random ppm modulated analog signal under matlab prepared cellular automata. Platform: |
Size: 6144 |
Author:ysepx |
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