pacc

Question 1.4 Sullivan

说明：  一个对数据进行独立成分分析的小程序，可对统计数据进行快速的降维。(An independent component analysis of the data of small procedures, statistical data on the fast dimension reduction.)

MIMO雷达模型下一种子空间谱估计方法，采用过估计的方法，以避免信源数估计的问题，直接对数据协方差矩阵进行变换，从而构造了信号子空间投影矩阵和噪声子空间投影矩阵，不需要像经典的MUSIC一样对其进行特征分解，完全避开了在一般非理想情况下MUSIC算法必须面对的识别小特征值与大特征值的麻烦，降低了复杂度，而且该方法不受快拍数的影响，在相干源情况下也能准确的估计目标的入射角，不会出现伪峰。(A subspace based DOA (Direction-Of-Arrival) estimation method for MIMO (Multiple-Input Multiple-Output) radar is studied in this paper. By transforming the data covariance matrix, we can construct the projection matrix of signal subspace and noise subspace. The computation complexity of the algorithm is reduced as it does not need to perform eigendecomposition. By using the over estimated theory, this algorithm avoid estimating the number of signal sources and can keep a good estimate performance in the case of lower SNR (Signal-to-Noise Ratios) and multi-target. )

5th exercise of computer graphics course

功能：用BFGS算法求解无约束问题：min f(x) 输入：x0是初始点，fun,gfun分别是目标函数及其梯度； varargin是输入可变参数变量，简单调用bfgs时可以忽略它， 但是其他程序循环调用时将会发挥重要作用 输出：x,val分别是近似最优点和最优值，k是迭代次数。(Function: BFGS algorithm for unconstrained problem: min f (x) Input: X0 is the initial point, fun, gfun each objective function and its gradient varargin variable parameter is the input variable, it can be ignored when a simple call bfgs , but other programs will play an important role when the cycle is called output: x, val are approximate optimum and the optimal value, k is the number of iterations.)

台湾苼科A7102的芯片资料，内含操作说明(Taiwan Sheng Section A7102 chip data, contains instructions)

你也matlab实现抑制载波单边带调幅的仿真，包括输出各个节点的信号频谱图。(You can also achieve the suppression matlab simulation carrier single sideband amplitude modulation, including the output of each node signal frequency spectrum.)

matlab 神经网络算法应用于图片中人物性格识别,通过对神经网络的训练，可以识别图像中是男性还是女性。。。(matlab neural network algorithm is applied to the picture of character recognition, neural network through training, can identify the image is male or female. . .)

This tutorial is the next of before, you will learn a few of the basic functions of Matlab. First we will start working with basic mathematical functions, setting variables, and generating time series.

魔兽源代码Cpp.rar一个国外最早发出的好东西(EverQuest source code Cpp.rar a foreign earliest a good thing)