Hz_propagation

模拟了FBG的反射谱和透射谱图像，对FBG的初学者很有用！程序有详细的说明。(The refilection spectra of FBG.)

Natural frequency of shell bubble compare to free bubbles

EM算法的MATLAB实现,EM算法是HMM中用于随机过程模型参数训练的经典算法(the inplement of algorithm EM with MATLAB，the algorithm is a claasical mathod which is used to train the patameter of the HHM model.)

SURF_DETECTOR SURF (Speeded Up Robust Feature) is a robust image detector and descriptor, first presented by Herbert Bay et al. in 2006, that can be used in computer vision tasks like object recognition or 3D reconstruction. It is partly inspired by the SIFT descriptor.

给定一组数据，利用特征值方法简单的计算其主成分，简单易懂，适合初学者学习(simple matlab code of PCA)

简单的单周控制部分,没有PI环节，时钟脉冲10KHz，输入信号有增益(a simple ONE CYCLE CONTROL MATLAB MODEL)

本代码是基于RSSI的无线定位代码，包括PPT和论文说明，代码里边还好有GUI仿真代码。( The code is based on the RSSI of wireless location code, including PPT and papers instructions, but fortunately there are GUI code inside the simulation code.)

This is to experiment with feature detection and tracking algorithms. In particular, the reader should gain intuition on the role of various design parameters such as the size of the windows for selection and tracking, the SSD criterion and thresholds.

GMSK调制，先实现相位的计算，再加入载波调制，输出GMSK信号(GMSK modulation, the first implementation phase of the calculation, then add carrier modulation, the output GMSK signal)

灰色神经网络的预测算法，订单需求预测，matlab的经典算法(Gray neural network prediction algorithm, order demand forecasting, matlab classical algorithm)