ridgereg

histogram programs of image in matlab

MATLAB simscape 工具箱，介绍simscape 工具箱(MATLAB simscape)

说明：  数学建模matlab应用总结，针对多个数学模型进行编程(Mathematical modeling matlab application summary)

研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散 余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的 K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角 阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这 反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特 性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。 虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。 (Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect. Although from related to the performance of the sense, DCT is a kind o)

说明：  根据IR-uwb信号的特点，仿真其发射和接收的情况。(According to IR-uwb signals, the simulation of the transmission and reception of the situation.)

与matlab有关的，非常实用的一些网页(with the Matlab, some very useful website)

matlab中，运用开运算，显示不同半径开操作后剩余的像素和，&每个半径下粒度多少&半径为5时图像中粒度的分布情况(matlab, the use of open computing, display different radii after opening and operation of the remaining pixels, & Under each radius of the particle size distribution of the number & radius 5:00 granularity image)

多径效应的仿真，瑞利平坦衰落信道的改进Jakes模型；得出信号功率随多普勒频移的变化(The simulation of the multipath effect)

可实现银行排队论mmm，输出随机数matlab实现计算机模拟排队论(Bank of queuing theory can be realized mmm, the output random number matlab computer simulation of queuing theory to achieve)

在Matlab的Simulink仿真环境，模拟光伏电池板在不同光照下的输出功率曲线。(Matlab Simulink simulation environment, the curve of the simulated PV panels output power in a different light.)