tuxiangchuli

matlab class for dummies

非线性误差曲面特性观察，用MATLAB实现BP网络模拟趋近(Observed non-linear error surface characteristics, network simulation using MATLAB tends to achieve BP)

说明：  清华大学 研究生 最优化 源代码 matlab 程序(Tsinghua University graduate program optimized source code matlab)

Position Control of BLDC motor

Field Ⅱ超声成像代码，可以进行单个孔径成像和合成孔径成像、加权和不加权仿真。(The calculation of point spread functions is done by placing a point in front of the transducer and then sweeping the beam over the point. This gives the point spread function of the imaging system. Field II can make this calculation for a number of points simultaneously and thereby reveal the dynamic focusing properties of the imaging system. A point phantom has been made for this purpose. It consists of a number of point targets placed with a distance of 5 mm starting at 15 mm from the transducer surface)

GPS 软件接收机，非常适合GNSS接收机开发的初学者(GNSS SDR , very useful for beginner)

说明：  matlab 中很实用的源代码2：中值滤波器、用Sobel算子和拉普拉斯对图像锐化，梯度算子检测边缘(Practical source code of matlab)

高斯白噪声的生成程序，采用了小波去噪的思想，小波包分析提取振动信号中的特征频率。( Gaussian white noise generator, Using wavelet denoising thought, Wavelet packet analysis to extract vibration signal characteristic frequency.)

本文针对基于经验模态分解ＥＭＤ的时空滤波器存在的固有模态函数分量中频率混叠交叉导致有用信号与噪声一起被滤除的问题结合小波在时间尺度两域表征信号局部特征的特性提出了一种基于能量估计实现ＥＭＤ分解层数确定(In this paper, based on empirical mode decomposition EMD temporal filter mode functions inherent component of cross-frequency aliasing and noise together lead to useful signal is filtered in the time scale of the problem combined with wavelet domain characterization of two local features of the signal characteristics of proposed achieve energy estimation based on EMD decomposition level determined)

liangge xin hao 特征提取后用bp神经网络进行识别(BP feture extract)