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Source
Simple GPS Simulation with RINEX Data
- 2009-03-26 11:13:31下载
- 积分:1
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PB-OLE
pb的ole编程技术,OLE,全称Object Linking and Embedding,即对象链接和嵌入技术,是Windows系统中允许应用程序共享数据和程序功能的一种标准的便利方法。(Object Linking and Embedding)
- 2014-08-14 22:12:24下载
- 积分:1
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nn_matlab
matlab神经网络工具箱的实用指南,第一章是神经网络的基本介绍,第二章包括了由工具箱指定的有关网络结构和符号的基本材料以及建立神经网络的一些基本函数,例如new、init、adapt和train。第三章以反向传播网络为例讲解了反向传播网络的原理和应用的基本过程。(matlab neural network toolbox of the Practical Guide, chap neural network are the basic introduction, chapter II, including designated by the toolbox on the network structure and symbols of the basic materials, as well as neural network set up some basic functions, such as new, init, adapt and train. Chapter III in order to reverse the spread of the network as an example to explain the back-propagation networks, the basic principle and application process.)
- 2009-03-24 09:13:55下载
- 积分:1
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FIR
1、验证窗函数 N 变化时,验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时,验证其其频谱主瓣副瓣幅度比基本不会发生变化,
而主瓣宽度将会变窄。这说明,当用矩形窗函数设计滤波器时,增大 N 不能使
得阻带衰减减小,但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗,验证当 N 变化时,其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通,通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
阻带衰减不小于 40dB,通带衰减不大于 3dB.
a)选取 Hanning,Hamming 窗查看设计出来的 FIR 的过渡带宽和阻带衰减是否
满足要求,二者有什么不同。
b)使用 hamming 窗,将窗长增大 1 倍,设计 FIR。验证同样的窗函数类型
(hamming),不同窗长度时,设计出来的 FIR 的过渡带宽和阻带衰减都有什么变
化。
3、不使用 Matlab 系统函数得到上一项指标的低通,并与上一项结果比较。
4 用窗函数法设计线性相位 FIR 高通,通带截止频率 wp=0.8PI, 阻带截止频率
ws=0.7PI, 阻带衰减不小于 30dB,通带衰减不大于 3dB.(An actual filter is implemented using the truncated unit impulse response sequence of the ideal filter.
For the ideal low pass filter, the unit impulse response h, N, D () is intercepted by a length of N, and the length is
The N sequence H (n), when intercepted, guarantees causality and linear phase requirements for the filter.
In order to reduce the Gibbs effect, the H (n) window is added, and the appropriate window function is selected to ensure the stopband attenuation and
Transition zone requirement. Note that the sidelobe of the window function affects the stopband attenuation of the filter, and the main lobe width affects the filter
Transition bandwidth.)
- 2017-07-06 11:55:24下载
- 积分:1
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646818116cwt(matlab)
关于连续小波变换的matlab程序,使用molet小波的连续小波变换(On continuous wavelet transform matlab procedures, the use of continuous wavelet transform wavelet morlet)
- 2016-06-07 11:08:50下载
- 积分:1
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Sistema-de-Ventas---VF
Sistema de Ventas - VF
- 2014-11-25 09:10:08下载
- 积分:1
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insertrows
Insert row in matlab
- 2014-12-07 18:47:03下载
- 积分:1
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DCmotor
利用matlab对直流电动机的特性以及调速和启动制动过程经行了仿真分析,对了解直流电机的特性有很大的帮助。(Using matlab to the characteristics of DC motor speed control and start the braking process of the simulation analysis by the Bank, to the understanding of the characteristics of DC motors are a great help.)
- 2009-04-14 16:26:51下载
- 积分:1
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pca
人脸识别的最基本的算法PCA,主要是描述了特征值法的基本原理,内容很详细。(Most basic algorithm for PCA Face RecognitionFace recognition algorithm is the most basic PCA, mainly describes the basic principles of characteristic value method, content, very detailed.)
- 2009-12-19 16:35:20下载
- 积分:1
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zihuigui
这是我在做水文预测时写的一些自回归模型代码(This is what I was doing some hydrological forecasts from the regression model to write code)
- 2010-05-25 14:54:44下载
- 积分:1