edge-prewitt

现代信号处理中谱估计在matlab中的使用例程(Modern Signal Processing Spectrum Estimation in the use of matlab routines)

说明：  基于ridgelet变化的图象去噪 含直线特征的效果好(Ridgelet-based image denoising with changes in the characteristics of effective linear)

使用imfilter和fspecial实现空间滤波(To use imfilter and fspecial spatial filtering)

求解电力网络机电暂态DAE方程，得到系统随时间变化的状态量轨迹(solve the mechanical/electrical transient DAE function of power system, in order to get the trace of the state parameter when time varies)

matlab在化学中的应用，有很多例子 是转载的(matlab in chemistry, there are many examples are reproduced)

设计一维纳滤波器。 （1）产生三组观测数据，首先根据s(n)=as(n-1)+w(n)产生信号s(n)，将其加噪(信噪比分别为20dB，10dB，6dB)，得到观测数据x1(n)，x2(n)，x3(n)。 （2）估计xi(n)，i=1,2,3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L，N对实验结果的影响。 (Design a Wiener filter. (1) generate three sets of observations data, first according to s (n) = as (n-1)+w (n) to generate a signal s (n), which add noise (SNR respectively 20dB, 10dB, 6dB), obtained observation data x1 (n), x2 (n), x3 (n). (2) estimate xi (n), i = AR model parameters 1,2,3. Assuming the signal length L, AR model of order N, analysis of experimental results and discuss changes affect L, N of the experimental results.)

检测模块，可以检测电流、电压值等一些电学参数(check module ，check current,voltage,and etc)

采用bp神经网络对函数y=sin（x）进行训练，然后用测试集对训练的函数进行测试，也就是函数逼近sin（x)的曲线(Bp neural network using the function y = sin (x) for training, and then use the test set to test the training function, that is, function approximation sin (x) curve)

基于互功率谱的时延估计，数值分析的EULER法，最大似然（ML）准则和最大后验概率（MAP）准则。( Based on the time delay estimation of power spectrum, EULER numerical analysis method, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.)

《visual c++matlab图像处理与识别实用案例精选》源码(" Visual c++ matlab image processing and recognition of practical cases selected" source)