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im_mean_var
计算图像的均值和方差函数，matlab编写的，可以添加到自己的图像处理中(Calculated the mean and variance of the image function, matlab prepared, can be added to their own image processing)
- 2009-07-07 21:19:06下载
- 积分：1
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Locating-Voltage-Sags
电压跌落是最严重的动态电能质量问题之一，
精确定位电压跌落起止时间是应对电压跌落问题的
重要前提和基础。由于电压采样信号往往有噪声分
量，现有的方法在定位电压跌落的起止时间时存在
局限性。本文提出利用多小波变换及相邻系数去噪
的电压跌落定位方法。多小波兼有对称性、正交性、
有限支撑性和二阶消失矩等优异的信号处理性能，
利用GHM多小波可以准确定位电压跌落起止时间。
多小波变换系数在每层之间具有对应关系，多小波
相邻系数将紧相邻的若干个系数作为一个整体来确
定阈值，考虑了系数之间的相关性，能获得更好的
去噪效果。通过 Matlab 进行仿真验证，仿真结果表
明，所提出的方法的正确性。
(Voltage sag is one of the most serious
dynamic power quality problems. Critical start-time
and end-time are important indices for voltage sags.
But the sampling signals often have noisy component,
the locations of start-time and end-time are hard to get.
Wavelet is an effective tool for those non-stationary
signal processing and has been used in this field. Local
feature in the signal can be enlarged after the
transformation using the scalar wavelet. But scalar
wavelets cannot contain orthogonality, symmetry,
compact support and higher order of vanishing
moments simultaneously. In this thesis, multi-wavelets
GHM is used to detect and locate power quality
disturbances. Multi-wavelets offer many excellent
properties such as the same approximation order but
more compact support. The dependence of the
multi-wavelets coefficients varies with the level, so
neighboring coefficien)
- 2014-03-25 17:08:50下载
- 积分：1
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分形程序
海杂波背景下的分形特征，目标检测，赫斯特指数(HEST = wfbmesti(X) returns a row vector HEST which contains three estimates of the fractal index H of the signal X supposed to come from a fractional Brownian motion of parameter H.)
- 2017-09-14 15:10:28下载
- 积分：1
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LCD-LED-PHP
现有大屏拼接技术性能参数对比，这是我上个月的调研内容，数据可信，对于要了解大屏拼接技术的人一定有帮助(Existing large-screen display technical performance parameters comparison, this is my last month s survey content, data credibility, for large-screen technology to understand who must have help)
- 2014-01-09 23:30:04下载
- 积分：1
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基于信息熵的约简MATLAB代码
利用matlab和ceemd进行编程求解简单的信息熵，根据求解的imf分量判断信号的情况(Using MATLAB and ceemd programming to solve simple information entropy, according to the IMF component to determine the situation of the signal)
- 2017-07-08 15:00:24下载
- 积分：1
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机载正侧视RD
机载正侧视SAR雷达仿真和成像，使用matlab编写，直接运行可用(Simulation and imaging of airborne forward-looking SAR radar)
- 2020-06-17 13:00:02下载
- 积分：1
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libicp
icp算法C++实例，用于点集的配准，实现两片点云数据的拼接(icp algorithm C++ instance, used for the registration point set to achieve splice two pieces of point cloud data)
- 2014-03-29 13:06:25下载
- 积分：1
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HDMI-Type-A、B、C、D接口图
HDMI接口定义，包括a，b，c，d，包括各种接口的详细介绍(HDMI interface definition, including a, b, c, d, including detailed introduction of various interfaces)
- 2020-06-17 03:40:01下载
- 积分：1
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Goldstein Filter for InSAR
sar滤波中最经典的频率域滤波算法.效果也不错.(sar filtering of the most classic frequency domain filtering algorithm. effect is not bad.)
- 2009-11-25 11:14:31下载
- 积分：1
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canny_edge
说明： 用canny做边缘检测的matlab源程序(do with canny Edge Detection Matlab source)
- 2006-04-05 16:44:36下载
- 积分：1
