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interest-points
基于兴趣点颜色及纹理特征的图像检索算法,通过同类比较,平均检索准确率提高11个百分点。(Based on the interest points and texture features of color image retrieval algorithm, through a similar comparison, the average retrieval accuracy rate of 11 percent improve.)
- 2009-03-05 11:09:25下载
- 积分:1
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BispectrumWavelets
用双谱和小波变换去除信号中加性高斯噪声的相关程序
1.实现单个变量的双谱分析程序
2.用傅立叶反变换求自相关函数的程序
3.用fft求取喜好频谱、功率谱、均方根谱、对数谱的程序
4.读取.wav语音信号后用小波去加信白噪声的程序
5.用各种小波和阀值对同一信号去加性噪声效果比较的程序
(Double-spectral and wavelet transform to remove the signal plus Gaussian noise procedures 1. To achieve a single variable pairs of spectral analysis procedures 2. Using Fourier inverse transform procedures for seeking self-correlation function 3. To strike a preference to use fft spectrum , power spectrum, RMS spectrum, several spectra of the procedure 4. read. wav audio signal with wavelet plus a letter to the white noise process 5. with a variety of wavelet and threshold on the same signal to additive noise Comparison program)
- 2009-11-10 21:43:58下载
- 积分:1
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matlab
matlab2010开发环境,实现高斯金字塔,修改图片地址即可,测试成功,代码注释详细(matlab2010 development environment to achieve the Gaussian pyramid, modify the picture address test is successful, the code comments in detail)
- 2012-05-23 13:53:11下载
- 积分:1
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INV
C++ code for computation of the inverse matrix with dimension 3x3.
- 2014-11-02 02:51:02下载
- 积分:1
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CS
说明: Landau, Ioan D.
Digital control systems : design, identification and
implementation. - (Communications and control engineering)
- 2010-06-08 23:46:25下载
- 积分:1
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CreateRamp
利用matlab产生一个雷达回波信号,模拟了信号的强度和回波时间的变化(Using matlab to generate a radar echo signal, analog signal intensity and echo time of change)
- 2010-03-07 15:56:56下载
- 积分:1
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SmithChart
史密斯原图的matlab实现,用户接口界面,显示输入波的原图形态(Smith achieve the maximum of Matlab, users Interface, show that the maximum wave form)
- 2007-05-06 21:56:06下载
- 积分:1
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tsp_pso
: 针对粒子群优化算法易陷入局部极值的缺点, 提 出一种改进粒子群算法, 该算法借鉴贪婪算法的思想初始化种群, 利用两
个种群同时寻优, 并将遗传算法中交叉和变异操作引入其 中, 实现种群间的信息共享。(I n a l l u s i o n t o p a r t i c l e s wa r m o p t i mi z a t i o n b ei n g pr on e t o g e t i n t o l oc a l mi n i mu m, a n i mpr o v e d p a r t i c l e s wa r m
o pt i mi z a t i o n a l g o r it h m i s p r o po s e d. Th e a l g o r it hm dr a ws o n t h e t hi n ki ng o f t he g r e e d y a l g o r it hm t o i n i t i a l i z e t he pa r t i c l e s wa l- n 1 .
Two s wa r ms a r e u s e d t o o pt i mi z e s y nc h r o no u s l y, a nd c r o s s o v e r a n d mu t a t i o n o p er a t o r s i n g e n e t i c a lg o r i t h m a r e i n t r o d uc e d i n t o t h e
ne w a l g o r it h m t o r e a l i z e t h e s ha r i ng o f i n f o r m a t i o n a mo ng s wa r l T i S .)
- 2014-08-15 10:41:18下载
- 积分:1
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MATLAB_FFT
MATLAB关于FFT频谱分析的程序,可以实现信号的频谱分析(MATLAB on the FFT spectrum analysis procedures, spectral analysis of the signal can be achieved)
- 2021-03-06 15:49:30下载
- 积分:1
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m_PN
说明: 伪随机码或称PN码,是扩频通信中不可缺少的一种序列。扩频通信,简单的说来就是通过一组相关性很强的伪随机序列,使原有的信号按照伪随机序列的特性出现。从波形上看,原有信号完全淹没于随机的噪声中,达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列,就可以通过伪随机序列很强的相关性将信号还原出来。而m序列,是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码,通过改变初始多项式的值,就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)
- 2009-08-10 22:39:52下载
- 积分:1