DS

自己设计的一种简单的理想频域低通滤波器，对图像进行低通滤波操作。(A simple self-designed ideal frequency domain low pass filter, low pass filter on the image operation.)

信号处理，数据录入，傅里叶变换，计算频谱及倒谱！(Signal processing, computing the spectrum and cepstrum)

关于用遗传算法改进BP神经网络的matlab实现(转引) ga优化神经网权值&阈值程序。 优化的基本原理和过程很多论文可以查到，在此不必赘述我就把用gaot5的小程序贴在下面吧，也是y=1/x(为看的方便，比较繁杂的也有) (About matlab improved BP neural network using genetic algorithm implementation (quoted) ga optimizing neural network weights & Threshold Program. Optimization of the basic principles and procedures can be found in many papers, this does not have to go into details, I' ll stick with gaot5 small program below it, is y = 1/x (for watching convenience, there are also more complicated))

This is a Matlabe code to find the value of a variable in an equation

dsp实验中对matlab的基本认识实验，NCEPU的dsp实验一(the basic use of matlab in dsp)

TolPac=1 输入数据块数 PacketLen=10 每块的符号数目 M=64 调制指数 SNR=20 NFFT=256 Length of IFFTCpLength=16 Length of Prefix NSubc=64 Number of subcarriers freoff=0.5 归一化频偏2.25,phaseoff=0.1 (TolPac = 1 input data blocks the the PACKETLEN 10 of the span per block, the number of symbols M = 64 modulation index SNR = 20 NFFT = 256 the length of IFFTCpLength = 16 Length of Prefix NSubc = 64 Number of subcarriers freoff = 0.5 the normalization frequency offset 2.25 phaseoff = 0.1 )

root music 算法估计精度更加优秀(root music The estimation accuracy of the algorithm is better)

模式分类，提取的新特征，包括熵和尺寸特征，可分性好效果明显(pattern recognition ,new feature incuding entropy and size feature, better performance)

用MATLAB内含的随机数生成器生成所需的随机量，是进行概率模拟编程的参考工具(Included with the MATLAB random number generator to generate the required random quantity is the probability of a reference tool for simulation programming)

The PowerBuilder Foundation Class Library contains windows, user objects, DataWindows, and structures that you can use to help build PowerBuilder applications. It is mainly intended for use with new applications. PFC uses a service-based architecture, maximizing PowerBuilder s object-oriented capabilities. By using PFC, you can quickly add powerful capabilities to your applications.