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说明：  不使用matlab神经网络工具箱用bp网络实现函数逼近。利于了解bp网络的原理(Do not use matlab neural network toolbox with bp networks function approximation. Help to understand the principle of the network bp)

matlab中使用libsvm进行分类预测时对数据进行归一化。(Data normalization)

信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、(Basic knowledge of signals and systems, including continuous signal with the model, discrete signals and model common signal transform including Z transform,)

三维六光束光镊光阱力仿真gui,可计算介质中球形粒子所受到的光阱力(Three six beam optical tweezers optical trapping force simulation gui, spherical particles can be calculated by the medium of light trapping force)

FDTD一维程序，设置自由空间。让电磁波在一维自由空间中传输(FDTD one-dimensional program, set the free space. Electromagnetic wave in a one-dimensional free-space transmission)

适用于需要用matlab环境，用som方法解决分类问题的朋友们(Applicable to the need to use matlab environment, used to solve classification problems som friends)

捷联惯导系统的初始对准的程序，加入了算法描述，方便大家使用。(SINS Alignment programmer)

MATLAB FOR ADAPTIVE MODULATION IN MIMO OFDM FULL CODING COMPARISON FOR AWGN AND RAYLEIGH

求系统串联滞后校正器传递函数的函数 ，其中sope是系统的开环传递函数，当key=1时，var为gama，是根据要求校正后的相角 稳定裕度计算之后校正器；当key=2时，var=wc，则是 根据要求校正后的剪切频率计算校正器。(Demand system is connected lag compensator transfer function of the function, which sope is the system open-loop transfer function, when key = 1 时, var is gama, is adjusted according to the phase angle required stability margin calculation after corrector when key = 2, var = wc, is the required shear frequencies after correction corrector.)

Thermal Unit Commitment Solution Using an Improved Lagrangian Relaxation