powell

基于时域有限差分法的电磁波二维传导方程，MATLAB编写，可作为二维正演模拟，也可作为MATLAB的教学演示。(FDTD method based on the electromagnetic two-dimensional conduction equation, MATLAB prepared, can be used as two-dimensional forward modeling, but also as a teaching demonstration of MATLAB.)

Program will detect colour ball in a video by calculating colour values

matlab code for finite element method

为了提高使用精度，研究了某型号MEMS陀螺仪的随机漂移模型。采用游程检验法分析了 该陀螺仪随机漂移数据的平稳性，并根据该漂移为均值非平稳、方差平稳的随机过程的结论， 采用梯度径向基（RBF）神经网络对漂移数据进行了建模。实验结果表明：相比经典RBF网络模 型而言，这种方法建立的模型能更好地描述MEMS陀螺仪的漂移特；相对于季节时间序列模型而 言，其补偿效果提高了大约15％。(In order to improve accuracy, to study a particular model of the MEMS gyroscope random drift model. Using run-length analysis of the test gyro random drift data stationarity, and in accordance with the drift for the average non-stationary, the variance of the random process a smooth conclusion, the use of gradient radial basis (RBF) neural network drift data to build mode. The experimental results show that: compared to the classical RBF network model, this method of establishing a model to better describe the MEMS gyroscope drift special compared with the seasonal time series model, the effect of their compensation increased by approximately 15.)

结合PCA的尺度不变特征变换(SIFT)算法，基于kaiser窗的双谱线插值FFT谐波分析，可实现对二维数据的聚类。( Combined with PCA scale invariant feature transform (SIFT) algorithm, Dual-line interpolation FFT harmonic analysis kaiser windows, Can realize the two-dimensional data clustering.)

说明：  matpower 学习手册-----------(matpower manual-----------)

this is one of the best compression code in the world name as shanon fano code

汉明码和RS码的编译码的MATLAB源程序(Hamming and RS MATLAB source code encryption)

a simple source code to practice the ODE45 (Rung kutta) integration methode

对HARQ系统的吞吐量分析，自己编的5种调制信号，采用的是通用的平面波展开法。( HARQ throughput analysis of the system, Own five modulation signal, Using common plane wave expansion method.)