work2_3

关于向图像中嵌入二值图像作为水印，用的是交换中频系数的方法。(DCT watermarking)

k-means clustering is a method of vector quantization, originally signal processing, that is popular for cluster analysis in data mining. k-means clustering aims to partition n observations into k clusters in which each observation belongs to the cluster with the nearest mean, serving as a prototype of the cluster. This results in a partitioning of the data space into Voronoi cells.

利用MATLAB的fullbnt贝叶斯网络工具箱构建贝叶斯网络，进行贝叶斯网络推理( The fullbnt Bayesian networks using MATLAB toolbox to build Bayesian networks, Bayesian network inference)

arcserver+C#，实现空间属性查询，刘光出版书本源代码参考(arcserver+C#, spatial attribute query, Liu publishing source code reference books)

深圳人口20年灰度预测,采用GM（1，1），原深圳杯数模程序(The Shenzhen population 20 years grayscale forecast)

运用MUSIC 算法仿真均匀圆阵的测向。经典算法(MUSIC algorithm simulation using uniform circular array to the test. Classical algorithm)

This matlab code generates UWB indoor channel impulse response described in : Cassioli, D. Win, M.Z. Molisch, A.F., "The ultra-wide bandwidth indoor channel: from statistical model to simulations," Selected Areas in Communications, IEEE Journal on , vol.20, no.6, pp. 1247-1257, Aug 2002 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1021916&isnumber=21989 All parameters of the channel were taken from the reference paper

设计卫星绕地球运动的图象。要求：地球的直径≥5cm，卫星用五角星表示，卫星轨迹呈椭圆其中一部分轨迹被地球遮挡。(Design of the satellite around the earth in the image. Requirements: Earth' s diameter ≥ 5cm, with a five-pointed star, said the satellite, the satellite orbit was elliptical orbit by the Earth blocking part.)

simulink构建的简单的离散型的积分分离法整定PID参数模拟仿真(Simulink to build a simple discrete integral separation tuning PID parameters simulation)

在matlab环境中自动识别连通区域的大小,从先验概率中采样，计算权重，小波包分析提取振动信号中的特征频率。( Automatic identification in the matlab environment the size of the connected area, Sampling a priori probability, calculate the weight, Wavelet packet analysis to extract vibration signal characteristic frequency.)