tnn7_code_201212141110

孙志忠书：偏微分方程数值解，第三章第一节：抛物方程的有限差分解法向前欧拉格式(forward euler difference scheme for parabolic problem)

精通matlab综合辅导与指南(proficient Matlab comprehensive counseling and guidance )

用于坐标转换 空间球形极坐标转化为空间直角三维坐标(For spherical polar coordinates space coordinate conversion into rectangular space three-dimensional coordinate)

Contourlet变换思想，选用拉普拉斯塔式滤波器结构对图像多分辨率分解来捕捉奇异点。(Contourlet transform thinking, the choice of Laplace tower filter structure for multi-resolution images to capture the singularity exploded.)

DTW算法的程序，申请两个n*m的矩阵D、d,分别为累积距离和帧匹配距离。这里n和m为测试模版与参考模版的帧数。然后通过一个循环计算两个模版的帧匹配距离d。接下来进行动态规划，为每个格点 （i，j）都计算其三个可能的前续格点的累积距离D1，D2，D3。考虑到边界问题，有些前续格点可能不存在，因此加入一些判断条件最后利用最小值函数min()，找到三个前续格点的累积 距离作为累积距离，与当前帧的匹配距离d（i，j）相加，作为当前格点的累积距离。该计算过程一直达到格点（n，m），并将D（n，m）输出，作为模版匹配的结果。(DTW algorithm procedures, apply two n* m matrix D, d, respectively, accumulated distance and frame matching distance. Where n and m is a reference test pattern and the template frames. Then through a loop to calculate two frames template matching distance d. Next, dynamic programming, for each grid point (i, j) are calculated from the cumulative D1 before the renewal of its three possible lattice point, D2, D3. Taking into account the boundary problem, some former continued grid point may not exist, so add some conditions to determine the final use of the minimum function min (), found three former continued accumulation of grid points cumulative distance as the distance from the current frame to match the d (i, j) added, and a current cumulative distance grid. This calculation has reached the grid (n, m), and D (n, m) output, as a result of template matching.)

说明：  OFDM系统点对点收发的误码率分析,采用瑞丽信道，可以对收发帧数等进行修改(BER for OFDM system)

测向定位 信号处理思想 ESPRIT的思想在于，将传感器阵列分解为两个完全相同的子阵列，两个子阵中每两个相对应的阵元具有相同的平移，即要求阵列具有平移不变性，每两个位移相同的阵元匹配成对。实际中许多阵列满足这个条件，比如等距直线阵。它还有一些改进演算法，如最小二乘ESPRIT (LS-ESPRIT)，整体最小二乘ESPRIT(TLS-ESPRIT)等(Finding ideological positioning signal processing ESPRIT thought that the sensor array is divided into two identical sub-arrays, two sub-arrays in each of the two corresponding array element has the same translation, which requires an array with a translation invariance, each two identical displacement picket matching pairs. Many of the actual array satisfy this condition, such as isometric linear array. It also has improved algorithms, such as least-squares ESPRIT (LS-ESPRIT), the overall least squares ESPRIT (TLS-ESPRIT), etc.)

lsqr.m 基于QR正交分解的最小二乘法......(lsqr.m QRLS............................)

induction machine m-file (matlab) simulink

说明：  计算基本矩阵的matlab例程，可供学习科研时参考(Calculation of the basic matrix matlab routines for scientific study and reference)