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编码A律Simulink和MATLAB(PCM in the communication system to complete the voice signal digital function, and its implementation mainly includes three steps to complete: sampling, quantization, coding. The binary representation of time discrete, amplitud

利用matlab来实现图像压缩，spiht算法作者原版代码，包含了二进制熵编码以及小波变换，自适应分解等级，加入了示例图片。(The use of MATLAB to achieve image compression, SPIHT algorithm author original code, including binary entropy coding and wavelet transform, adaptive decomposition level, joined the sampl

二进制相位编码脉冲、方形编码脉冲等信号的脉冲压缩处理matlab示例(Pulse Compression for different kind of signals such as binary phase coded pulse and square coded pulse.)