Uhlig_Walsh

FDTD三维场的叠加画图显示，很不错的程序。希望对大家有用!(Superposition of three-dimensional field FDTD drawing shows a very good program. Hope it useful!)

learning programming with Matlab

face recognition with lda+pca

采用L-M优化算法用以训练BP神经网络，使其能够拟合某一附加有白噪声的正弦样本数据。设计一个三层BP神经网络，其网络的隐含层神经元的激励函数为双曲正切型，输出层各神经元的激励函数为线性函数，隐含层有6个神经元(LM optimization algorithm used to train BP neural network to enable it to fit a white noise, sine additional sample data. Design a three BP neural network, its network of hidden layer neuron activation function of hyperbolic tangent type for the output layer activation function of each neuron is a linear function of the hidden layer has 6 neurons)

This function produces an image of a 3D object defined by matrix a(l,m,n) in terms of voxels the image is a view after rotating the object by angles alfa and beta (in degree) b is the image and d is its ditance to the viewer matrix The first figure depicts the object using only its gray level values The second image depicts the object using some lighting effect rotate3d may be used for reorientation but the obtained image is planner

说明：  此为遗传算法和模拟退火算法相结合的一个方法，可实现对函数的优化(This is the genetic algorithm and simulated annealing algorithm, a combination of methods, the optimization function can be realized)

遗传算法，对于基本的遗传算法给出几个子函数，并有详细的每句解释，适合初学者学习遗传算法！(genetic algorithm)

用于仿真MM!排队模型，计算平均等待时间和到来的人数，并对每个人的等待时间绘图(Used to simulate the MM! Queuing model to calculate the average waiting time and the number of people coming, and everyone' s waiting time in drawing)

运用matlab对数字图像进行抖动加网二值化，16×16型(Matlab digital images using dithering screening binarization, 16 × 16 type)

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.