ACI_FOC_matlab

磁共振成像仪的基本硬件,脉冲序列的基本概念和分类,MRI常规质控指标,MRI的优缺点(Magnetic resonance imaging of the basic hardware, pulse sequence and classification of the basic concepts, MRI routine quality control indicators, MRI of the advantages and disadvantages)

说明：   可以参考，对做通信课题设计的人来说，看了很有益处(can refer to the communication issue so those who design and useful read)

Efficient Generalized Colored image Enhancement

color detection used to find color in images

高阶谱分析3，适用于阵列信号处理、雷达信号处理等(。-High-order spectral analysis toolbox for array signal processing, radar signal processing.)

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)

1.MUSIC算法MATLAB程序 估计目标方位(MUSIC algorithm for direction estimation)

无刷直流电机的单闭环控制，基于matlab与simulink联合仿真(Single closed loop control of brushless dc motor)

采用分步傅里叶方法对NLSE 进行了求解，并在归一化和功率补偿条件下模拟和分析了输入脉冲为双曲正割脉冲，高斯脉冲，超高斯脉冲传输对比情况，以及一到三阶双曲正割光脉冲条件下光脉冲传输演变情况(Using split-step Fourier method NLSE was solved, and in the normalization and power compensation under simulation and analysis of the input pulse for the hyperbolic secant pulse, Gaussian pulse, the comparison of super-Gaussian pulse transmission, and a to the three conditions, the hyperbolic secant pulse evolution of optical pulses)

说明：  此程序用于做全息实验时，先把全息图再现得到实像，在对实像双线差值，三内差值和中值滤波的办法来提高再现图质量(This program uses the difference between two-, three within the margin and median filtering approach to improving the quality of image scaling)