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calculus several variables ebook..................................

这个资料为数字图像处理技术方面matlab的入门资料，讲述了matlab的数字图像处理工具包的使用，以及基本的图像处理函数.(This information technologies for digital image processing matlab introductory information about the digital image processing matlab toolkit to use, and basic image processing functions.)

multiple input multiple output capacity

太阳同步轨道仿真一周期内卫星星下点轨迹图 (During the week of sun-synchronous orbit satellite nadir simulation trajectories)

说明：  harrisi 算法，用此算法可以快速在图像中寻找到角点，快速 准确(harrisi algorithm)

当信号采样点数很少时，不能很好的恢复原模拟信号，导致原始信号中的一部分丢失。而当信号的采样点数增多到1024时，其分辨率很好，可以有效的区分信号的信息，当采样点数继续增多时，其恢复为原始模拟信号的精度越高且不丢失原始信号。(When the signal is small when the sampling points can not be good to restore the original analog signal, causing part of the original signal is lost. When the signal is increased to 1024 sampling points, its resolution is very good, can effectively distinguish the signal information, continue to increase when the sampling points, its back to the higher accuracy of the original analog signal without loss of the original signal.)

主成分分析(Principal Component Analysis, 简称PCA)是一种常用的基于变量协方差矩阵对信息进行处理、压缩和抽提的有效方法。 (The principal component analysis (Principal Component Analysis, PCA) is a common covariance matrix of information processing, compression and extraction.)

光伏阵列在不均匀光照情况下的多峰输出模型(the model of the PV in the partially shadow)

简支梁桥、连续桥梁桥墩纵横向地震力计算程序。(Simple supported beam bridge, the calculation of continuous bridge pier seismic force, horizontal and vertical seismic force can be calculated)

粒子群算法（PSO）优化BP神经网络，用来进行非线性的校正，效果良好(Particle swarm optimization (PSO) to optimize BP neural network, used for non-linear correction, to good effect)