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prml-web-sol
经典的国外bitshop关于机器学习和模式识别教程,全是英文,内容详细(Classic foreign bitshop tutorial on machine learning and pattern recognition, all in English, detailed)
- 2010-06-12 13:28:58下载
- 积分:1
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shiyan
数值分析的实验用二分法编写程序代码的例子(Numerical analysis of the experimental programming code examples of the dichotomy)
- 2009-11-10 20:45:05下载
- 积分:1
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forward
可以计算任意角的倾斜度板状体的磁法正演,板状体为无限延伸(Forward can calculate any angle of inclination of the plate magnetic method for the unlimited extension of the plate-shaped body)
- 2012-11-14 20:57:20下载
- 积分:1
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4).FFT
MATLAB code for fast fourier transform
- 2014-01-03 17:28:17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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fir
说明: 利用在box-muller 和在时域上通过低通滤波器的方法产生多普勒频移的瑞利信道(Using the box-muller, and in the time domain through a low pass filter method produces Doppler frequency shift of the Rayleigh channel)
- 2011-03-09 06:24:47下载
- 积分:1
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waiwenziliao
基于matlab2013a的simulink仿真,包括改进型插入式重复控制、pdff以及电机矢量控制仿真程序,为达到好的效果有些参数需要自己调试,希望大家的学习有所帮助~。(Based matlab2013a the simulink simulation, including improved plug-in repetitive control, pdff and motor vector control simulation program, in order to achieve good results and some parameters need to own debugging, we hope to learn some help ~.)
- 2013-12-07 18:03:49下载
- 积分:1
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tanhaoqiang
谭浩强(第三版) 程序代码及习题答案.rar(Hao (third edition) program code and answer the questions. Rar)
- 2013-11-21 18:51:28下载
- 积分:1
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ganshe
该程序可以让你通过设置一序列参数来获得具有一定距离的两波源实现干涉(This program lets you set up a sequence of parameters through to get some distance the two wave source to achieve interference)
- 2015-04-02 21:05:53下载
- 积分:1
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TXCL-MATLAB
数字图像处理MATLAB版(中文版),找了很久才找到的,绝对经典教程,超详细(Digital Image Processing Using MATLAB (Chinese Edition), looking for a long time to find the absolute classic tutorial, ultra-detailed)
- 2012-05-18 22:10:59下载
- 积分:1