HeunMethod-DifferentialEquations

BPSK AWGN信道编码仿真源程序，适合初学者(BPSK AWGN channel coding simulation source, suitable for beginners)

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，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，A律和μ律编码都已被定为国际标准。 本程序实现了A律、μ律以及均匀量化三种PCM，并带有GUI界面，方便使用。可以计算编码后的码率、运行时间以及最小均方误差。(Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding, from the mathematical point of view, the process is to quantify the magnitude of the value of an infinite number of continuous mapping into a discrete set of the limited range of values number set, code is 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, A law and μ-law code have been designated as international standards. A law implemented in this program, μ law and the uniform quantization of three PCM, with a GUI interface, easy to use. Encoded bit rate can be calculated, running time and minimum mean square error. )

给出了信号压缩通常的变换-量化-编码函数。DHT函数为离散DHT变换，是FFT变换的近似，其正反变换相同，克服了FFT复系数不利于存储的缺点。LLMAX函数给出了某x序列在固定比特下的最佳量化输出。熵编码函数为霍夫曼编码。(Gives the signal compression usually transform- quantitative- coding function. DHT DHT discrete transform function, the FFT transform approximation, the same positive and negative transformation, overcoming complex FFT coefficient is not conducive to storage shortcomings. LLMAX function x is given a fixed bit sequence in the optimum quantized output. Entropy coding function as Huffman coding.)

说明：  Matlab编程手册，一些编程的问题基本都能在这解决。(Matlab programming manual, some basic programming issues to resolve in this can.)

ieee 13 bus with double tuned filter at 7th and 10th bus

文件夹为Matlab编写的油藏数值模拟单相渗流所需要的作业文件,每个函数文件中均有详细的函数说明和代码示例(The File concerns about the homework regarding Single Phase of Reservoir Simulaiton, Each of text file consists of detailed description and example)

this the matlab program for the NRLF power system the dybnamic nature is been provided .... in the program and easy to understand

说明：  视频信号的压缩处理，包括帧分类，冗余的去除等(Video signal compression, including frame classification, redundancy removal, etc.)

感知机学习的源代码，希望能对大家有学习上的帮助！(Perception of the source code of machine learning, we hope to help learning!)

Simulation distribution2