engine-map

交织码通常表示为（M，N），分组长度L=MN，交织方式用M行N列的交织矩阵表示。一般，交织方式分为分组交织和卷积交织。分组交织的交织矩阵按列写入，按行读出；去交织矩阵按行写入按列读出。卷积交织的交织矩阵和去交织矩阵的写入与读出均按行进行。(Intertwined code is usually expressed as (M, N), the packet length L = MN, interwoven manner, said interwoven matrix with M rows and N columns. In general, interwoven into the packet interleaving and convolutional interleaving. Grouping of interwoven interwoven matrix column to write, to read de-interlacing matrix read out by column written by line by line. Convolutional interleaving interleaving matrix and de-interlacing matrix to write and read are OK.)

已知地震加速度记录，运用快速傅里叶变换求加速度的傅里叶谱。(Known earthquake acceleration records, the use of a fast Fourier transform seek acceleration Fourier spectrum.)

该代码是粒子滤波实现弱小目标的检测前跟踪。(The code is particle filter to implementation the weak target track before detection.)

灵敏度分析源程序，可用于结构模型修正，但仅运用了自振频率信息，没有运用振型信息(Sensitivity analysis of source code, can be used for structural model updating, but only the use of natural frequency information, there is no information on the use of modal)

collinearity diagnostic code for matlab

0／1背包问题的贪心优化解法 邓宏涛朱蜘 (江汉大学数学与计算机学院武汉430056) 摘要：介绍了0／1背包问题的基本贪心算法的解决策略，通过对贪心算法的改进和优化，找出0／1背包问题的最优解 的很好近似。(0/1 knapsack problem greedy optimization method of邓宏涛Zhu spider (Jianghan University, Mathematics and Computer Science, Wuhan 430056) Abstract: 0/1 knapsack problem of the greedy algorithm to solve the basic strategy of the greedy algorithm through the improvement and optimization, to find 0/1 knapsack problem of the optimal solution of a very good approximation.)

主要是对图像实现DFT,DCT变换，利用二维小波分析对图像作二层小波分解，显示条状图，十字图及频谱等(Realize the image is mainly DFT, DCT transform, the use of two-dimensional wavelet analysis of images for the second floor of wavelet decomposition, indicating strip maps, charts and cross spectrum)

matlab经典算法程序之线性回归，包含PPT讲义，可对照程序进行学习(matlab classic algorithm of linear regression procedures, including PPT handouts can control procedures for learning)

matlab file <<< just see it

说明：  matlab教材的电子图书还有课件和讲义对初学者很有帮助(matlab e-books are very helpful for beginners courseware and handouts)