-
Pulse-Code-Modulation
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.
)
- 2011-02-05 23:10:39下载
- 积分：1
-
PCA
PCA功能函数，使用时只需要编写主函数。(PCA function functions, only need to write the main function.
)
- 2010-05-28 13:47:28下载
- 积分：1
-
03
说明： 分布的拟合与检验，描述性统计量和统计图,并检验分布(Fitting and testing, descriptive statistics and charts distribution)
- 2014-08-17 17:19:47下载
- 积分：1
-
chuanghanshu
信号被窗函数截断，并做频谱分析，比较汉宁窗、三角窗等的特点(Window function signal is cut off, and do spectral analysis, comparing Hanning, triangular windows and other characteristics)
- 2013-08-22 17:14:23下载
- 积分：1
-
Digital-Coherent-Optical-Receivers
光纤相干通讯数字相干接收机，算法和子系统。一篇很精简全面的总结。(Digital coherent optical receiver algorithms and subsystems in fiber coherent optical communication. A very good brief summary.)
- 2014-01-24 16:06:40下载
- 积分：1
-
FFT_using_Matlab
是对fft进行分析的电子书，利用matlab.(this book is a introduction for FFT with matlab)
- 2009-05-12 16:09:37下载
- 积分：1
-
toolbox-tsp
是全面分析旅行商问题的工具箱，包含了很多方面的测试程序(is a comprehensive analysis of the traveling salesman problem toolbox contains a lot of testing procedures)
- 2007-05-25 09:12:20下载
- 积分：1
-
LISANSHIJIAN
（1） 自行设计产生两个离散序列信号，对其进行相加、乘及卷积运算。
（2） 利用filter命令求下面LTI系统的冲激响应：
y(n)－0.7y(n－1)－0.6y(n－2) + y(n－3) = x(n) + 0.5x(n－1)
（3） 画出系统的零极点图，判断系统的稳定性、因果性。
（4） 绘出系统的频响曲线。(lisan time signal analyse )
- 2010-01-14 16:53:50下载
- 积分：1
-
guyoupinlvmin
运用matlab进行遗传算法编程，旨在解决汽车发动机悬置系统的固有频率最小值的问题(The use of genetic algorithm matlab programming, automotive engine mounting system designed to address the natural frequency of the minimum problem)
- 2011-09-01 10:11:38下载
- 积分：1
-
已知被控对象为 fuzzy_control
题目：已知被控对象为 1/(10s+1)*exp(-0.5s)。假设系统给定为阶跃值r＝30，采样时间为0.5s，系统的初始值r(0)＝0。试分别设计：
(1)常规的PID控制器；
(2)常规的模糊控制器；
分别对上述2种控制器进行Matlab仿真，并比较控制效果
(Topic: Known charged object is 1/(10s+1)* exp (-0.5s). Assume that the system is given as the step value r = 30, the sampling time of 0.5s, the system the initial values of R (0) = 0. Trial were designed: (1) conventional PID controller (2) conventional fuzzy controller Matlab simulation of the two kinds of controllers, respectively, and compare the control effect)
- 2021-04-09 20:48:59下载
- 积分：1
