gailvtongji_tools

利用空间平滑技术的多重信号分类MUSIC算法，在matlab环境下实现(The use of spatial smoothing technique multiple signal classification MUSIC algorithm in matlab environment to achieve)

it gets a cubic spline.

最小二乘法的Matlab参数辨识程序,用于对模型的识别。(Least squares method of Matlab parameter identification program )

介绍了平均电流控制型 PFC Boost 变换器的结构， 分析了其工作原理。 分别采用 Power System 工具箱和考虑电感电流断续工作状态的 C-MEX 文件 S 函数建立了主电路模型，对平均电 流控制型 PFC Boost 变换器进行了仿真。仿真结果表明，与 Power System 工具箱模型相比，基于 C-MEX 文件的 S 函数仿真模型能够准确仿真电流断续工作状态，仿真速度快。设计了电路样机进 行了实验研究，仿真结果与实验结果一致，证明了该方法的正确性。利用该方法可以高效地仿真 研究系统结构和参数变化时性能变化情况，得到的平均电流控制型 PFC Boost 变换器的混沌分岔 图，为更好地理解和设计这种变换器提供了有利的工具。(The structure of average current controlled power factor correction (PFC) Boost converter is introduced, and its working principle is analyzed. The PFC Boost converter is simulated using the model established with Power System toolbox and the C-MEX file S-function model respectively. Simulation results show that the C-MEX file S-function model can simulate the all state of the converter including discontinuous conduction mode with high speed. Experimental results show the correctness of the simulation results and the proposed method. The method is suitable for simulation the performance changing with the variation of system structure or parameters. The bifurcation diagram is derived for PFC Boost converter using this method, which is very useful for better understanding and better design of the converter.)

计算二维图形的分形维数，比较好用，计算方便(Calculate the fractal dimension of a two-dimensional figure)

多相机同步显示程序，包括两个相机同时采集图像显示结果(Synchronous multi-camera display program, including two cameras simultaneously capture images displayed)

frequency estimation using Root Music

LagMatrix Function - matlab - Useful Econometrics Tool

B样条的插补编程代码，通过使用MATLAB，来产生B样条曲线图形(B-spline interpolation programming code, using MATLAB, to generate B-spline curve graphic)

OFDM and CDMA combination for high speed transmission