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matlab-Transmission
用matlab编写一维光子晶体的透射,是有关矩阵的,能推广到多层(The transmission of one-dimensional photonic crystal using matlab, is about the matrix, can be extended to multi-storey)
- 2021-04-12 23:38:57下载
- 积分:1
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SavePPM
将像素数据写成一幅PPM格式的图片,像素数据为灰度图的数据,附件里有一个图像数据,宽150,高90,共100帧(The data will be written in a grayscale image PPM format, the program is written in matlab, the file contains a grayscale data.)
- 2011-10-31 14:53:58下载
- 积分:1
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RS
说明: image prcessing using matlab
- 2015-02-05 01:28:16下载
- 积分:1
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Harris
用matlab实现harris角点检测,通过改变参数来调整角点检测的个数。(Harris corner detection using matlab to achieve, by changing the parameters to adjust the number of corner detection.)
- 2013-05-09 21:16:23下载
- 积分:1
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Mie-scattering-Matlab
Mie散射相函数MATLAB源程序,求mie散射系数an、bn及散射角等(MATLAB Functions for Mie Scattering and Absorption)
- 2015-05-10 18:49:57下载
- 积分:1
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STFT
短时傅里叶变换的实现代码,可根据自己的信号改变参数仍可实现STFT(The implementation code of STFT)
- 2018-05-06 17:58:07下载
- 积分:1
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W_K_B
关于用matlab求解薛定谔方程的求解探讨问题研究说明(With regard to solving Schrodinger equation using matlab for solving the problems addressed in studies to illustrate the)
- 2009-12-15 00:20:02下载
- 积分:1
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sugeno
说明: 该算法为基于sugeno的倒立摆模糊控制
用MATlab开发,能够管直接运行(The algorithm for the Sugeno-based fuzzy control of inverted pendulum using Matlab development, be able to pipe directly to run)
- 2008-09-06 13:00:19下载
- 积分:1
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matlab-uimenu
matlab的基本用法,对初学者有用,是必备的基础知识.(Matlab the basic usage, useful for beginners, is an essential knowledge base.)
- 2006-06-25 17:24:22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