PUMA560

说明：  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.)

matlab利用小波分解和混沌加密结合的图像加密算法程序代码(matlab program code encryption algorithm using image wavelet decomposition and chaotic encryption combined)

球面网格点判断，找到合适的三角点，不成熟，请见谅。(spherical grid judgment, to find a suitable Triangle, immature, and I do apologize.)

MATLAB经典潮流计算代码，采用的是牛顿拉夫遜法，木器哦按实用最为广泛(Classic MATLAB flow calculation code, using the Newton Raphson method, the most widely used wood oh by practical)

直角坐标转换到极坐标下代码，以图像中心为原点，水平向右为0°方向，顺时针旋转生成极坐标图像。(converts a given image from cartesian coordinates to polar coordinates.)

说明：  一种简单的带罚函数的粒子群算法 容易修改并且非常简单适合初学者(A simple penalty function with PSO is very easy to modify and simple for beginners)

凸组合滤波器CLMS，代价函数为e的平方，根据IEEE添加的限定条件，程序稳定，可运行，有详细注释(Convex combination of filters, the cost function is the square of the e qualification added by the IEEE, the program can run detailed notes)

此为matlab教程，主要是关于simulink的实验教程，是学校的内部资料。(This is a matlab tutorial, mainly on the experimental simulink tutorial, is the school' s internal information.)

期望最大化算法的ppt，很不错，个人用了，很受益啊。。。(EM algorithm)

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)