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BP神经网络模型的建立过程，并利用模型来验证模型的准确性。两部分输入输出数据(BP neural network modeling process and use the model to verify the accuracy of the model. The two input and output data)

通过pch文件提取nastran质量矩阵、刚度矩阵，需要更改文件名称和自由度数（dof）,生成质量矩阵、刚度矩阵M,K(Extraction of mass matrix, stiffness matrix of NASTRAN)

一个非线性系统利用连续系统按环节离散化的数字仿真(Digital simulation of nonlinear continuous system of discrete link)

NASA worldwind插件，用于显示卫星轨迹，包含SatelliteTracker类。基于Direct3D技术。(NASA worldwind plugin for displaying satellite trajectory, including SatelliteTracker classes. Based on Direct3D technology.)

Find the bhattachharya coefficient

2维傅立叶变换方法用于分析干涉条纹，相移计算。(2D FFT for fringe annalisys)

PSAT software for analysis power system

PSO工具箱可以优化更多的内容和方法，帮助你更好地解决问题(PSO toolbox can be optimized more content and methods to help you better solve the problem)

matlab GUI设计，内容全面，通俗易懂，(matlab GUI design, comprehensive, easy to understand,)

Digital Signal Processing Charles Darwin University Lab4