stepfr

基于遗传算法BP网络预测，代码没有使用遗传工具箱，而是根据遗传算法理论进行编程，有助于理解遗传算法原理(BP network prediction based on genetic algorithm, the code does not use genetic toolbox, but according to the theory of programming genetic algorithms, help to understand the principles of genetic algorithms)

合成孔径雷达DPCA程序，希望对大家有用(synthetic aperture radar DPCA procedures in the hope that it may be useful for )

gauss siedel load flow analysis

传统的契比雪夫滤波器在51单片上实现，通过数字滤波解决传统硬件滤波的缺点(Realization of Chebyshev filter in the traditional 51 monolithic, solve the traditional hardware filtering by digital filtering.)

Magnetic resonance (MR) images can be used to detect lesions in the brains of multiple sclerosis (MS) patients and is essential for diagnosing the disease and monitoring its progression. An automatic method is presented for segmentation of MS lesions in multispectral MR images. Firstly a PD-w image is subtracted its corresponding T1-w image to get an image in which the cerebral spinal fluid (CSF) is enhanced. Then based on kernel fuzzy c-means (KFCM) algorithm, the enhanced image and the corresponding T2-w image are segmented respectively to extract the CSF region and the CSF combining MS lesions region. A raw MS lesions image is obtained by subtracting the CSF region CSF combining MS region. By applying median filter and thresholding to the raw image, the MS lesions are detected finally. Results are quantitatively uated on BrainWeb images using Dice similarity coefficient (DSC). Finally, the potential of the method as well as its limitations are discussed.

nl算法是一个十分好的图像去噪的算法，算法比较容易实现，适合于图像处理方面入门的人学习使用(nl algorithm is a very good image denoising algorithm, the algorithm is relatively easy to implement, suitable for image processing aspects of the entry of people learning to use)

am modulation and demodulation matlab full code

说明：  图像拼接，使用此代码可以方便的将一幅灰度图像或者彩色图像进行横向或者纵向拼接(Image mosaic, the use of this code can easily be a grayscale image or color image mosaic of horizontal or vertical)

用matlab画出α=0,0.5,1的余弦滚降系统的频谱，并画出各自对应的时域波形。以α=1的余弦滚降系统为例，进行二进制双极性数字基带信号传输，试画出接收端的基带信号波形及眼图。(Matlab draw α = 0,0.5, 1 cosine roll-offs system of spectrum, and draw their corresponding time domain waveform. To α = 1 cosine roll-offs system as an example, the binary dual polarity digital baseband signal transmission, try drawing the receiving end baseband signal waveform and eye chart.)

Crank nicolson method of numerical methods of integration. Used for all Computational Fluid dynamics applications.