New-Folder

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. )

求派的几种形式，做到精度与图形的结合，其中用到一些适合他人学习的语句。(Seeking to send several forms, so that combined with the precision and graphics, which uses some of the statements for others to learn.)

unit should be promoted in future work. The real implementation of the system is an issue that has been mentioned and should be analyzed while the simulation procedure exalts. Other simulation programs such as PSpice should be used to compare their results. The inverters need to develop in order to be more efficient and up to date, to

关于编程的一点小看法，值得好好品味一下哦(some ideas about coding)

为了了解系统某一状态时所处的时间，用积分方法从相平面获得时间信息。(In order to understand the time in which a state of the system from the phase plane using the following methods to obtain time information.)

本书详细介绍了matlab的基本功能，以及在高等数学、线性代数等方面的应用，适合初学者。(This book details the basic features of matlab, and advanced mathematics, linear algebra and other applications, suitable for beginners.)

这是跳频的源程序,我的毕业设计做的,希望对大家有帮助和启发(This is the source frequency hopping, I graduated from the design done, and I hope to be helpful and enlightening)

matlab学习资料大全很好用，非常详细(matlab learning materials useful, very detailed)

how to read and write files in matlab

说明：  fiir和iir滤波器设计源码，交流交流，希望给人帮助！(fiir source and IIR filter design, communication exchange, hoping to give people help!)