ch3

face detection achieved by matlab downloaded form u of a

用于数字通信中的几种编码仿真。(msk,mpsk,bpsk,epsk,ookd,qpsk...)(digital modulation including msk,mpsk, bpsk, epsk, ookd, qpsk...)

matlab的常用数据库表，另外还有一些个人搜集的数据库资料(matlab commonly used database tables, plus some personal information collected by the database)

读取obj模型并且显示的matlab代码。 简单易懂(matlab code to read .obj model)

循环谱的matlab程序，很实用，适合初学者使用，(Cyclic spectrum of the matlab program, very useful for beginners,)

针对四个水箱的水位控制用预测控制方法编写的一段matlab程序，希望有用。(Four water tanks for water level control with a predictive control method matlab program written in the hope that useful.)

软件无线电中的信号抽取程序，包括抽取后的频谱分析(software radio signal extraction procedures, including spectral analysis after extraction)

太阳方位计算，通过输入当地经度纬度，以及时间时区，计算当地任意时刻太阳样的高度角方位角。matlab程序(sun position)

说明：  计算均方误差MSE信噪比SNR峰值信噪比PSNR绝对平均误差的matlab函数(Calculate the mean square error MSE, SNR is the peak signal to noise ratio PSNR absolute average error of Matlab functions)

The fusion of high-spectral/low-spatial resolution multispectral and low-spectral/high-spatial resolution panchromatic satellite images is a very useful technique in various applications of remote sensing. Recently, some studies showed that a wavelet-based image fusion method provides high quality spectral content in fused images. However, most wavelet-based methods yield fused results with spatial resolution that is less than that obtained via the Brovey, IHS, and PCA fusion methods. In this paper, we introduce a new method based on a curvelet transform, which represents edges better than wavelets. Since edges play a fundamental role in image representation, one effective means to enhance spatial resolution is to enhance the edges. The curvelet-based image fusion method provides richer information in the spatial and spectral domains simultaneously. We performed Landsat ETM+ image fusion and found that the proposed method provides optimum fusion results.