基于BP算法的iris数据集分类，matlab实现，含注释。

this is lpcc matlab code

采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波(MATLAB using the function affected by noise interference filter2 images mean filter P0308: Image Adaptive Weiner Filter)

用SVD-TLS法进行的AR参数估计并用Cadzow谱估计子估计出信号的功率谱密度。(With the SVD-TLS method of AR parameter estimation and spectral estimation Cadzow child with estimated signal power spectral density.)

交通分布中的无约束重力模型，matlab程序(A matlab program of unconstrained gravity model in traffic distribution.)

hello sent this for in rar filr

压缩感知StOMP算法,具有很好的恢复性能(Compression the perception StOMP algorithm, has good recovery performance)

采用非局部均值滤波（NLM filter）对图像进行去噪，能取得很好的效果。(Using non-local means filter (NLM filter) for image de-noising, can achieve good results.)

包含了振动信号预处理，时域处理，频域处理的大部分相关的MATLAB代码(It contains most of the relevant MATLAB codes for vibration signal preprocessing, time domain processing and frequency domain processing.)

说明：  若非奇异矩阵A能够分解为一个正交矩阵Q与非奇异上三角矩阵R的乘积，即： A=QR。则称其为A的QR分解。 实现QR分解的方法有很多种，包括Givens变换法，Householder变换法，Schemit正交化法。具体原理可以参考《矩阵论》（程云鹏，西工大出版）教材，这里仅给出三种实现QR分解的程序。(If nonsingular matrix A can be decomposed into a product of orthogonal matrix Q and nonsingular upper triangular matrix R, that is: A=QR. It is called QR decomposition of A. There are many methods to realize QR decomposition, including givens transformation, householder transformation, and scheme orthogonalization. The specific principle can refer to the teaching materials of matrix theory (Cheng Yunpeng, published by Xigong University). Here, only three kinds of QR decomposition procedures are given.)

说明：  天牛须搜索( beetle antennae search，BAS) 算法是2017 年提出的一种基于天牛觅食原理的适用于多目标函数优化的新技术，其生物原理为: 当天牛觅食时，其并不知道食物在哪里，而是根据食物气味的强弱来觅食。天牛有两只长触角，如果左边触角收到的气味强度比右边大，那下一步天牛就会向左边飞，反之则向右飞。依据这一简单原理天牛就可以有效找到食物。与遗传算法、粒子群算法等类似，BAS 不需要知道函数的具体形式以及梯度信息，就可以自动实现寻优过程，且其个体仅为一个，寻优速度显著提高。(Code of intelligent algorithm)