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plotpointsGradient
This function allow to plot a series of points represented in omogeneous
coordinates or euclidean ones
- 2010-07-22 16:55:16下载
- 积分：1
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GA
说明： 此算法是用遗传算法解决一元函数的最值问题(This algorithm is a function of genetic algorithm to solve the most value of a dollar problem)
- 2009-12-03 18:53:40下载
- 积分：1
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frft
实现了chirp信号的分数阶傅立叶变换，表现出了其能量聚集效果，另外对单频、多频、高斯信号进行了分数阶傅立叶变换(The chirp signal Fractional Fourier Transform, showing the effect of its energy gathered addition of single-frequency, multi-frequency Gaussian signal Fractional Fourier Transform)
- 2021-03-05 21:19:31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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caikuang
采矿模型 可以在准备数学建模的时候作为练习资料(Math modeling)
- 2010-05-31 18:01:10下载
- 积分：1
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yiqunjulei
蚁群聚类算法，修改输入数据可直接运行，分组效果很好。(GA-Ant cluster algorithm，it can directly run by revamping the input data. The effect is very good.)
- 2014-04-14 17:26:07下载
- 积分：1
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Turbopha
In recent years large scientific interest has been
devoted to joint data decoding and parameter estimation
techniques. In this paper, iterative turbo decoding joint
to channel frequency and phase estimation is proposed.
The phase and frequency estimator is embedded into the
structure of the turbo decoder itself, taking into consideration
both turbo interleaving and puncturing. Results
show that the proposed technique outperforms conventional
approaches both in terms of detection capabilities and
implementation complexity.
- 2007-09-18 21:03:37下载
- 积分：1
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MMV_2008
by Lilia Maliar & Fernando Valli & Seguei Maliar
- 2010-03-04 17:15:18下载
- 积分：1
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chizhi
这是数学算法中的差值算法 联合开发网 - pudn.com
- 2012-04-17 19:09:37下载
- 积分：1
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face
Matlab PCA+SVM人脸识别,通过PCA和SVM算法达到人脸识别的功能。(Matlab PCA+SVM，To identify people s face.)
- 2015-01-19 15:49:39下载
- 积分：1
