dangqian

利用BP神经网络识别字母，选用改进的BP算法，精度高，抗噪声能力好(BP neural network using the letters, use the improved BP algorithm, high precision, good noise immunity)

MATLAB 主要函数指令表按功能分类 常用指令 通用信息查询 工作空间管理 管理指令和函数 指令窗控制 操作系统指令 运算符和特殊算符 (The main function of MATLAB commands by functional classification table used commands general information about job management command and function space management control of the operating system command window commands Operators and Special Operators)

这是一个用MATLAB软件编写的基于HOUGH变换的边缘检测程序(This is a MATLAB software HOUGH transform based on edge detection program)

正交信号校正法主要用于近红外光谱矩阵的预处理。其原理是将光谱阵与全氮含量阵正交,滤除光谱与因变量Y阵无关的信号,再建立定量校正模型,达到简化模型及提高模型预测能力的目的。(Orthogonal Signal Correction(OSC) removes variance in the X-block which is orthogonal to the Y-block. Such variance is identified as some number of factors (described as components) of the X-block which have been made orthogonal to the Y-block. When applying this preprocessing to new data, the same directions are removed from the new data prior to applying the model.)

时频工具箱，以上给了很多函数，但常用的基本就是短时傅里叶变换STFT、Wigner-Ville分布WVD、伪Wigner-Ville分布PWVD和提取瘠ridges、得到理想时频表示tfrideal。(Time-frequency toolbox over to a lot of functions, but the basic is commonly used short-time Fourier transform STFT, Wigner-Ville distribution WVD, pseudo-Wigner-Ville distribution PWVD and extraction barren ridges, when you get the ideal frequency representation tfrideal.)

基于PID控制的永磁同步直线电机速度控制系统，输出速度能够较好的跟踪输入信号，控制效果比较理想(The speed control system of permanent magnet synchronous linear motor based on PID control can track the input signal better, and the control effect is ideal.)

MATLAB三维显示地震数据, 开放小工具。 这个开放MABLAB三维绘图小工具, 非常好用, 可进行SLICE, CONTOUR, 等交互功能. (MATLAB display three-dimensional seismic data, open the gadget. An open three-dimensional graphics MABLAB gadget, very easy to use, it can conduct SLICE, CONTOUR, and other interactive features.)

Simulation PHY layer of Wimax 802.16e, including Tx, Channel and Rx, baseband only.

说明：  安德森经典著作：最优滤波，学习最优滤波的基础教材(Anderson classics: the optimal filter, optimal filter based learning materials)

几个异步电机仿真模型，启动，翻转，调速等(Several induction motor simulation models, starting, turning, speed, etc.)