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EZW源码(Matlab实现)
- 详细编写了EZW(嵌入式零树小波图像压缩技术),它主要由小波变换、量化和熵编码(Huffman编码)三个模块。 程序各个模块功能分明,依次为,Wavelet Decomposition,EZW Encoding(包含Huffman编码),EZW Decoding(包含Huffman解码),Inverse Wavelet Decomposition,Performance。
Turbo.rar
- 实现turbo码的编码和解码,是一个递归卷积码的编解码的程序,Turbo code to achieve the encoding and decoding
golaycodec.zip
- matlab函数,可实现golay编码和译码,包括(23,11)和(24,12,8) ,matlab function, can be realized golay encoding and decoding, including the (23,11) and (24,12,8)
MatlabMPEG.rar
- mpeg code in matlab contains several mfiles for encoding mpeg,mpeg code in matlab contains several mfiles for encoding mpeg
coding_callback
- 用matlab实现霍夫曼编码与解码,可以直接运行。-Matlab Hoffman used to achieve encoding and decoding, can be directly run.
ldpc802.16
- 在802.16e的系统中,仿真分析AWGN,瑞利衰落信道中的LDPC码的性能。程序中包括编译码的程序。-In 802.16e systems, simulation analysis AWGN, Rayleigh fading channel the performance of LDPC codes. Program, including encoding and decoding process.
MATLAB
- 产生长度为1000的标准正太分布的随机信号,画出时域波形及频谱; 采用u=255的非均匀PCM编码,每符号为8bit,画输入-输出关系图; 计算信号量化噪声比(SQNR); 信道误码率为10-3; 解码,并画出u律反变换后的信号时域波形及频谱。 扩展要求: 采用均匀PCM、量化级数可变、信道误码率可变。 - have a standard len
6
- 编写一个程序,对输入的图像进行哈夫曼编码,显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像。 Sobel算子和拉普拉斯算子进行锐化,并比较结果。-Write a program to image the input Huffman coding, the entropy of the original image displayed, encoded, the average code length, and be able to reconstruct the image a
LDPC--C
- 此为C++环境下的LDPC编译码的完整的源代码。常用于通信系统的编译码仿真过程。有助于各种项目的完成。-This is the C++ environment LDPC coding and decoding of the complete source code. Commonly used in the encoding and decoding communication system simulation. Contribute to the completion of various
PCM
- 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
ldpc
- ldpc码在AWGN信道下的性能仿真。包括geth.m,getG.m,H2G.m,decode.m,BER.m按传统的编码方案编码,生成H矩阵后转化为G矩阵,编码后送入高斯信道。仿真得到BER性能-ldpc codes in the AWGN channel performance simulation. Including geth.m, getG.m, H2G.m, decode.m, BER.m coded according to the traditional encoding sch
hamming-matlab
- 实现汉明码的编码和译码,可设定误码位置,查看纠错效果。-Achieve Hamming encoding and decoding, error location can be set to see the error correction effect.
graphing
- 1100011001的非归零码、曼彻斯特编码、差分曼彻斯特编码、调幅(ASK)、调频(FSK)和调相(PSK)的编码波形示意图-1100011001 of the NRZ, Manchester encoding, differential Manchester encoding, AM (ASK), frequency modulation (FSK) and phase modulation (PSK) waveform diagram of the coding
Manchester
- 用matlab实现的曼彻斯特编码。50 占空比(可调)。绘制时域波形和频域功率谱密度。结果跟北邮的郭文斌的通信原理课件上的形状一模一样。-Manchester encoding with a matlab implementation. 50 duty cycle (adjustable). Draw time-domain waveform and frequency domain power spectral density. The results with the Beijing Un
MATLAB
- (7,4)汉明码的编译码程序,基于MTLAB语言-Encoding and decoding procedures of (7,4)Hamming code
RLC_MATLAB
- 一个用于演示游程编码的Matlab程序,具有编码和解码功能-A Matlab program for the demonstration of the run-length coding , with the encoding and decoding functions
ldpc(in_matlab)
- 基于matlab的LDPC码的encoding和decoding的程序,强烈推荐初学者学习参考-Matlab based on the LDPC code encoding and decoding procedures, strongly recommended reference for beginners to learn
code
- SPEECH ENCODING USING ADPCM
MATLAB
- this an example of LDPC code in which after encoding i have added AWGN(Additive white Gaussian noise) and bsc(binary symmetric channel). then i hav performed decoding operation. one can easily devloped different BER vs Eb/N0 graph of different channe
matlab-mimo
- 一个教你如何用matlab写mimo系统的程序,可以任意改变编码方式和天线数目,-One teaches you how to write matlab mimo system program, you can change the encoding and the arbitrary number of antennas,