shiyongxiaochengxu

通过BP网络实现对非线性函数（正弦函数）的逼近。函数比较短，很简练。(Through the BP network for the nonlinear function (sine function) approximation. Function relatively short and very concise.)

svm matlab toolbox不错的工具箱(svm Matlab toolbox good Toolbox)

Analyze performance of 2D FDFD algorithm for large systems.

Red object Detection seample

plot googlemap in matlab

电子工业出版社《数字信号处理——基于计算机的方法》第三版的matlab代码，(Publishing House of Electronics Industry "digital signal processing- computer-based method for the third edition of the matlab code)

1、不同阶次模拟巴特沃兹滤波器的频率响应 2、根据模拟滤波器指标，设计低通巴特沃兹滤波器 要求通带截止频率 fp = 5kHz, 通带最大衰减 ɑp =2dB， 阻带截止频率 fs= 12kHz, 阻 带最小衰减ɑs =30dB,按照上述指标设计巴特沃兹低通滤波器。 3、给定模拟滤波器，按照不同采样频率设计数字 IIR，观察采样频率对设计结果的影响 已知模拟滤波器传输函数 H(s)为 2 0.5012 ( ) 0.6449 0.7079 H s s s = + + 按照不同采样频率 Fs1=1Hz, Fs2=10Hz 使用脉冲响应不变法将 H(s)转换为 H(z)数字 IIR 滤波器。观察不同采样频率设计得到的数字 IIR 的差异。 4、给定数字 IIR 指标，用脉冲响应不变法设计 IIR。 数字低通滤波器的指标为: 0.2 , 1 , 0.3 , 15 p p s s ω π α ω π α = = = = dB dB ,使用巴特沃 兹滤波器设计数字 IIR。比较采样频率 Fs=1， 2 时设计过程中的模拟滤波器，数字滤波 器的变化。 5、用双线性变换法设计 IIR，并同脉冲响应不变法比较设计的结果。数字滤波器指标要 求如下 0.2 , 1 , 0.3 , 15 p p s s ω π α ω π α = = = = dB dB(1.Grasp the impulse response method and bilinear transformation design IIR filter principle and specific design methods, familiar with double A computer program for designing lowpass, bandpass and highpass IIR digital filters by linear design; 2 . familiar with the design of analog Butterworth filter, master impulse response method and bilinear transformation method to design digital IIR Filter method)

改进的积分方程模型，微波遥感领域，用于求土壤的后向散射系数等；该模型为双站散射。(Improved integral equation model, the field of microwave remote sensing, and soil after backscattering coefficient model for bistatic scattering.)

Gabor滤波器实现图像的滤波，含有Gabor核函数，有助于理解Gabor的各个参数设置及Gabor滤波器的基本原理，适用于学习研究(Gabor filter can be applied in image filtering, containing the Gabor kernel function.It is helpful to understand the basic principle of each parameter setting and Gabor filter , and suitable for learning)

THIS PAPER IS ABOUT AXIS FLUX AND DIAGNOSIS FAULT IN INDUCTION MOTOR RARE