Andrew_NG_deeplearning

自适应波束形成，对波束形成的初学者很有用。运行过绝对正确(Adaptive beamforming, useful beginner beamforming. Ran absolutely correct)

matlab设计的IIR滤波器，包括巴特沃低通滤波器，切比雪夫低通滤波器等。(matlab design of IIR filters, including Butterworth low-pass filter, Chebyshev low pass filter.)

Finite Difference Method for Poisson equation. -Δu =f(x,y) in Ω u(x,y)=0 on Γ

说明：  该算法用于图片切割，有详细的源代码和注释。于是希望大家能好好利用(The algorithm used for image cutting, detailed source code and comments. So hope that we can make good use of)

we present a practical link adaptation algorithm for MIMO-OFDM systems. The proposed solution is based on sounding the channel periodically and choosing the optimal mode that will maximize the throughput or energy efficiency (EE) while satisfying the application’s quality of service (QoS) requirements. In addition, we address practical problems such as the computational complexity of the algorithm and determination of sounding period by novel closed form solutions and iterative algorithms. Realistic link level simulations confirm that the proposed solution achieves significant improvement over existing link adaptation algorithms when the aim is to maximize the throughput, and provides orders of magnitude gain in energy efficiency compared to poorly chosen fixed modes when used for energy efficiency maximization purposes. The resulting algorithms are implemented on a real time MIMOOFDM testbed, and we report on the experimental results.

双椭球附加质量干扰计算（根据切片法理论计算所得）(Additional quality double ellipsoid interference calculations (calculated in accordance with section method theory))

说明：  先进PID控制及其MATLAB仿真 1、所有仿真程序按章归类，光盘中的程序名与书中一一对应。 2、将光盘中的仿真程序拷入硬盘MATLAB运行的路径中，便可仿真运行。 3、本书仿真程序在MATLAB 5.3版下运行成功，并适用于其他版本。 (Advanced PID Control and MATLAB Simulation 1, all the simulation procedures are classified by chapter, the program name CD-one correspondence with the book. 2, CD-ROM drive copyed MATLAB simulation program running path, simulation can be run. 3, the book version of simulation program in MATLAB 5.3 running successfully, and apply to other versions.)

对电路板的图像进行分割，可以提取电路板中的目标物，以对电路板进行检测。文章使用K均值聚类算法完成对电路板图像的分割，针对传统的K均值聚类算法的不足，提出了使用直方图波形的有效波峰个数来确定K值的大小，并通过使用一种比传统的绝对误差的表示更简洁的表达式，达到了快速分割的目的。对一些电路板图像分割的实验结果表明，文章的方法能够根据目标物的数目有效的确定K值的大小，且比传统的K均值算法减少了运算量及计算时间。 (On the circuit board image segmentation, to extract the target board to the circuit board for testing. Article using the K means clustering algorithm to complete the circuit board image segmentation, the traditional K-means clustering algorithm, the paper proposes the effective use of histogram peak wave number of K values to determine the size, and by using a ratio of absolute error of the traditional expression that is more concise, to the fast segmentation. For some circuit board image segmentation results show that the method can be according to the article the number of valid target value to determine the size K, and K-means algorithm than the traditional reduced computation and computing time.)

人脸识别程序，可以很好的识别不同人的脸型(Face recognition program that can recognize a good face different people)

主要实现的是系统在分布式管理下，在一定可靠性的条件下，系统的稳定性的判断。通过得到的计算值来估算系统的可靠性。(Mainly achieved in distributed under the management of the system, the reliability of certain conditions, the stability of the system of judgments. Obtained by calculating the value of to estimate the reliability of the system.)