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FemLorentzFit
Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, and voltages are not well defined in electromagnetic wave formulations. There are several tricks to model voltage generators in such situations, and one is the magnetic frill. This model shows the basic steps of defining a magnetic frill voltage generator for a dipole antenna, and it also compares the resulting antenna impedance with known results.
- 2009-05-14 22:11:37下载
- 积分：1
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Computer-Vision-Using-Local-Binary-Patterns
The local binary pattern (LBP) is a simple yet very efficient operator which labels
the pixels of an image by thresholding the neighborhood of each pixel and considers
the result as a binary number. Perhaps the most important property of the LBP operator in real-world applications is its invariance against monotonic gray level changes caused, for example, by illumination variations. Another equally important is its computational simplicity, which makes it possible to analyze images in challenging real-time settings. LBP is also very flexible: it can be easily adapted to different types of problems and used
together with other image descriptors
- 2013-09-19 10:04:03下载
- 积分：1
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testYourComputer
通过计算一批整数的阶乘来测试电脑的运行速度。(Test running speed of a computer by calculating a power of some int numbers. And the program is writen with QT.)
- 2015-02-14 06:58:16下载
- 积分：1
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sanjiaobo_gaoping
基于MATLAB的三角波的高频触发信号，不是自带模块 (MATLAB-based high-frequency triangle-wave trigger signal, rather than bring their own module)
- 2009-05-13 20:40:17下载
- 积分：1
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cdma_recover
image watermarking method
- 2011-06-13 18:21:53下载
- 积分：1
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opt11
模式搜索法源程序。模式搜索方法是求解最优化问题的一种直接搜索方法,它不用目标函数与约束函数的导数信息而只用函数值信息,是求解不可导或求导代价较大的最优化问题的一种有效方法。(Source model search. Pattern search method for solving optimization problems is a direct search method, it should not be the objective function and constraint function information of the derivative function only information is the solution of non-derivative or derivative of the cost of a larger optimization problem of a effective way.)
- 2009-05-14 01:06:33下载
- 积分：1
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gridfit
用MATLAB.实现3维数据立体图，是拟合的图形。(Using MATLAB. The realization of 3-D three-dimensional map data is the fitting graphics.)
- 2009-05-28 19:20:08下载
- 积分：1
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fit_maxwell_pdf
fit_maxwell_pdf - Non Linear Least Squares fit of the maxwellian distribution.
given the samples of the histogram of the samples, finds the
distribution parameter that fits the histogram samples.
fits data to the probability of the form:
p(r) = sqrt(2/pi)*(a^(-3/2))*(r^2)*exp(-(r^2)/(2*a))
with parameter: a
format: result = fit_maxwell_pdf( x,y,W,hAx )
input: y - vector, samples of the histogram to be fitted
x - vector, position of the samples of the histogram (i.e. y = f(x,a))
W - matrix or scalar, a square weighting matrix of the size NxN where
N = length(y), or 0 to indicate no weighting is needed.
hAx - handle of an axis, on which the fitted distribution is plotted
if h is given empty, a figure is created.
output: result - structure with the fields
a - fitted parameter
VAR - variance of the estimation
type- weighted LS or not weighted LS
iter- number of iteration for the solution
- 2011-02-09 19:02:55下载
- 积分：1
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Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分：1
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SAR_ECHO_SIMULATE_V1
目的：SAR雷达在斜视角etha下，雷达回波信号仿真
目标位置 X1(0.75PRT*C/2,Ta*V),X2(0.75PRT*C/2,2.3Ta*V)
修改时间：2013年9月21日 11:30
- 2013-10-12 22:16:36下载
- 积分：1
