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chengxu3
用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图
2.进行FFT变换,显示各自频谱图,其中采样率,频率、数据长度自选
3.做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4.用IFFT傅立叶反变换恢复信号,并显示恢复的正弦信号时域波形图
(Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their respective time-domain waveform of Figure 2. FFT to transform, showing their frequency spectrum, including sampling rate, frequency, data length of 3-on-demand. Make the rms signal of the three maps, power maps, as well as the number of root-mean-square map 4. Fourier Transform IFFT with the restoration of signals, and displays the sinusoidal signal the resumption of time-domain waveform)
- 2008-06-16 15:54:03下载
- 积分:1
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pcacode
程序设计步骤:
1、去均值
2、计算协方差矩阵及其特征值和特征向量
3、计算协方差矩阵的特征值大于阈值的个数
4、降序排列特征值
5、去掉较小的特征值
6、去掉较大的特征值(一般没有这一步)
7、合并选择的特征值
8、选择相应的特征值和特征向量
9、计算白化矩阵
10、提取主分量(Programming steps: 1 to mean 2, calculation of covariance matrix and its eigenvalues and eigenvectors 3, the calculation of covariance matrix eigenvalues greater than the threshold number of 4, in descending order of eigenvalue 5, remove the smaller eigenvalue 6, remove the larger eigenvalue (usually not this step) 7, the combined choice of eigenvalues 8, select the appropriate eigenvalues and eigenvectors 9, computing whitening matrix 10, principal component extraction)
- 2008-07-14 16:25:23下载
- 积分:1
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practice
在IDL中运行,可以将多光谱、高光谱等多波段影像拆分为为单一波段影像(It works in IDL and it can split multibands into single band)
- 2015-11-05 16:03:01下载
- 积分:1
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RD algorithm of SAR
该算法为距离-多普勒成像算法,针对场景的多散射点目标录取回波数据,采用匹配滤波的方法实现距离向与方位向的压缩,识别出目标并得到其位置信息。(The algorithm is range Doppler imaging algorithm, aiming at the multi scattering scene target extracting echo data, matched filtering method was used to realize the distance and azimuth compression, identify the target and its location information.)
- 2017-07-25 11:35:40下载
- 积分:1
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wrk
基于模糊对比度的图像增强方法,大致过程仍然是先把图像从空间域映射到模糊域,在模糊域内通过定义一个局部对比度算子,然后通过对凸函数的加强来放大像素邻域的各像素之间的差异。
(Based on the fuzzy contrast image enhancement method, the general process is still the first images from space domain is mapped to the fuzzy field in fuzzy field through the define a local contrast operator, and then the convex function to enlarge the strengthening of pixels each neighborhood pixel differences.
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- 2012-06-23 19:46:20下载
- 积分:1
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AVIPHDR
高动态图像(HDR)合成算法,多曝光图像的配准算法(High dynamic image (HDR) synthesis algorithm, multi-exposure image registration algorithm)
- 2013-06-27 02:16:13下载
- 积分:1
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图像融合代码
整理了五种多曝光图像融合的代码,用于图像处理,图像去雾,有英文介绍(Five kinds of multi-exposure image fusion codes are sorted out.For image processing, image defogging, with English introduction)
- 2021-02-18 15:39:45下载
- 积分:1
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形态学滤波
说明: 用数学形态学滤波进行图像处理或者信号降噪,(包括膨胀和腐蚀)(Image processing or signal noise reduction using mathematical morphological filtering (including expansion and corrosion))
- 2020-12-29 21:53:44下载
- 积分:1
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Z源逆变器开路三相SVPWM调制
说明: Z源逆变器开路三相SVPWM调制,注入了三次谐波分量。(Open-circuit Three-phase SVPWM Modulation of Z-source Inverter)
- 2020-10-07 10:37:37下载
- 积分:1
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Characterizngthemech
Adult amblyopes can improve positional acuity through practice however, the neural mechanisms underlying this improvement are still not clear. In this study, seven adult amblyopes repeatedly practiced a position discrimination task in the presence of positional noise.
- 2008-07-19 17:44:31下载
- 积分:1