JA_MH

说明：  把一个文件夹中的图片根据图片的名称分到两个文件中(Put the pictures in a folder name according to the pictures to the two files )

用黄金分割法来求解函数的极小点，不用求函数的导数，只需进行迭代即可,非精确线搜索技术用于解决极值区间(Golden section method to solve the minimum point of the function, do not seek the derivative of a function, simply iteration can be inexact line search techniques for solving extremal interval)

直线阵自然指向性仿真,先根据设定的角频率仿真单频信号A sin(ωt)；再根据阵元间距、入射角度计算得各阵元相对参考阵元接收的信号的时延 τ (dsin(θ))/c。 假设等间隔N基元线阵，入射信号是平面波，那么阵元输出信号为：S_n (t) A sin(ωt+nφ)；其中 φ 2πfτ 为相邻阵元接收信号间的相位差；再将基阵各元输出求和，取最大值max,就得到输出幅度；以入射角为横坐标，幅度为纵坐标作图得直线阵自然指向性。 (Linear array directivity simulation)

基于k_l的人脸识别，费了很大力气搜来的，与大家分享一下。(K_l-based face recognition, a lot of trouble to search for, share with you.)

说明：  遗传算法matlab代码，经过检测无错，希望对大家有用(Genetic algorithm matlab code, error detection)

用于图像处理，可以实现去燥功能，还可以加噪等(For image processing, can function to dry, but also noise and other)

《计算机程序设计艺术》重译自Donald E. Knuth(汉名高德纳)的三卷著作： The Art of Computer Programming: 1. Fundamental Algorithms 2. Seminumerical Algorithms 3. Sorting and Searching ；三卷中文名为《基本算法》、《半数值算法》及《排序与查找》。本书内容博大精深，作者因为三卷书获得美国计算机协会1974年图灵奖（该奖被国际公认为计算机科学领域的最高奖项）。(The Art of Computer Programming retranslation Donald e. Knuth (han gartner) three volumes of The book: The Art of Computer Programming: 1. The Fundamental Algorithms 2. The Seminumerical Algorithms 3. The Sorting and Searching Three volumes in Chinese, the basic algorithm, a numerical algorithm and the sorting and searching.And profound content of the book, the author for three books for the computer association in 1974 Turing award (the prize is internationally recognized as the highest award in the field of computer science).)

线列阵对相干信号进行目标方位估计，包括前向平滑，后向平滑，双向平滑，修正music算法等(Line Array for coherent signal DOA estimates, including forward smoothly, backward smoothing, double smoothing, modified music algorithm)

基于DQPSK差分编码调制解调,希望对你有帮助。(DQPSK modulation and demodulation based on differential encoding, I hope to help you.)

平面8节点单元类，可以输出单元的刚度，并可通过形函数插值得到内部各点得位移、应力等。对各位以前编写的程序的一个补充和完善吧。(plane eight-unit category, the output unit stiffness, through the shape function can be interpolation points in the internal displacement and stress. Right before you and the procedure for the preparation of a supplement and perfect it.)