Changjiang

histogram operations

该仿真程序通过窗函数法设计非线性调频信号，并仿真了非线性调频信号的脉冲压缩(this matlab program has simulated the non-linear frequency modulation signal and it s compression)

数字图像处理中的Arnold变换和反变换的MATLAB实现程序,附Lenna图片一张。(Matlab program for Arnold transfer and invers Arnold transfer in digital image processing with a picture of Lenna. )

自己做的感应电机无速度传感器直接转矩控制仿真模型，特拿来分享，还望大家多多指教。(sensorless direct torque control for induction motor)

Wind Turbines with Doubly-Fed Induction Generator Systems with Improved Performance due to Grid Requirements

对图像进行基于SIFT算法的特征提取并对图像特征并实现特征匹配(the implement of the sift algorithm and matching based on the feature extracted the image)

It enables users to input a time-series of 2-D velocity field data (e.g., DPIV measurements or CFD calculations) and compute the corresponding finite-time Lyapunov exponent (FTLE) fields, which Lagrangian Coherent Structures (LCS) suchas vortices and fluid transport barriers can be identified.

自写较为完善的STBC空时分组编码的MATLAB源代码，包括G2(Alamouti),G3(码率1/2),G4(码率1/2),H3(码率3/4),H4(码率3/4)的五种正交编码矩阵，调制方式有BPSK、QPSK、8PSK、16QAM，得出了仿真值的误比特率BER曲线，连带给出了所有调制方式和编码矩阵的理论误比特率BER曲线。(This is a matlab code for stbc,including five kinds of coding matrix: G2(Alamouti),G3(rate 1/2),G4(rate 1/2),H3(rate 3/4),H4(rate 3/4) and many kinds of modulation,such as BPSK,QPSK,8PSK,16QAM etc.I present all the simulative BER figures and theory BER figure.enjoy:))

介绍了matlab中的帮助命令，比较全面，能让学习者快速取得帮助。(The introduction of the matlab help command, a more comprehensive and allow speedy access to help learners.)

Kiel matlab project taken from website see any fault exist report me.Squirrel-cage induction motors (IM) are the workhorse of industries for variable speed applications in a wide power range that covers from fractional watt to megawatts. However, the torque and speed control of these motors is difficult because of their nonlinear and complex structure. In the past five decades, a lot of advanced control schemes for IM drive appeared. First, in the 1960’s, the principle of speed control was based on an IM model considered just for steady state. Therefore, the so-called “scalar control methods” cannot