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romberg
龙贝格算法的mathlab实现源代码,一般在计算方法课上使用(Romberg algorithm mathlab implementation source code, generally used in the calculation method of class)
- 2009-12-01 18:57:31下载
- 积分:1
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tezhengbianhuan
这是模式识别中来进行特征变换的程序,比较不错,希望对大家有用。这是我做作业时编写的。(This is the feature pattern recognition to transform the program, quite good, we want to be useful. This is me with my homework when prepared.)
- 2010-05-31 17:13:07下载
- 积分:1
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Xtractor
To file convertion from ETNA EVT file into MatLab or ASCII
- 2011-08-31 03:46:04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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2
说明: salam man hamid hastam in file matlab
- 2012-04-09 12:28:20下载
- 积分:1
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MicrosoftWord5
算法由于提供了一个预测值,相对来说有简化.第五种方法,也就是ode45所得的精度最高尺度到了1e-18...简直可怕!一般很少有工程问题是它不能够满足的了,能够看出,解的差别在本问题里已经很明显了.
(algorithm providing a predictive value, a relatively simplified. Fifth, ode45 is the highest accuracy of a scale of e-18 ... is simply terrible! it seldom works that asked that is not able to meet it in the can see that the solution of differences in the issues it is already very clear.)
- 2007-04-17 16:09:09下载
- 积分:1
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MyArrayList.java
simple implementation of common used data structure
- 2014-10-01 02:38:35下载
- 积分:1
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solar3PI
采用PR控制策略的光伏发电并网的simulink仿真图(Simulink simulation of grid connected photovoltaic generation using PR control strategy)
- 2018-06-05 15:48:17下载
- 积分:1
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wm
说明: 中继位置不同 分配功率相同 的放大协同通信 基于蒙特卡洛仿真(Relay different positions assigned the same zoom power cooperative communication based on Monte Carlo simulation)
- 2011-10-16 19:44:13下载
- 积分:1
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Two-channel-audio-signal
听觉信号加工的双通路模型是北大教授吴玺宏2008年的一篇很重要的文章(Two-channel audio signal processing model)
- 2011-11-09 17:27:31下载
- 积分:1