shengxianchangdu

文章由重力和重力梯度的基本理论出发，讨论了重力分量和重力梯度张量分量的2-D傅立叶变换 与重力位的傅立叶变换之间的关系。推导了航空重力梯度仪的测量原理，并对航空重力梯度测量的 应用做了简要的介绍(Article by gravity and gravity gradient of the basic theory, discussed the components of gravity and gravity gradient tensor component of the 2-D Fourier Transform and gravity places the relationship between the Fourier transform. Derivation of the airborne gravity gradiometer measuring principle, and airborne gravity gradient measurements application to do a brief introduction)

说明：  特征选择验证（FSV：Feature Selective Validation）方法是IEEE标准1597.1所确立的电磁仿真有效性评估体系的核心方法，该程序采用matlab实现了FSV方法的可信度分析，可用于两组数据之间的相似度分析。(FSV (feature selective validation) method is the core method of the effectiveness evaluation system of electromagnetic simulation established by IEEE standard 1597.1. The program uses MATLAB to realize the reliability analysis of FSV method, which can be used for the similarity analysis between two groups of data.)

信号维数的估计，计算一维光子晶体的透射特性和反射特性，小波包分析提取振动信号中的特征频率。( Signal dimension estimates, Calculated transmission characteristics and reflection characteristics of the one-dimensional photonic crystals, Wavelet packet analysis to extract vibration signal characteristic frequency.)

捷联惯性导航领域的姿态更新算法仿真，包括二子样、三子样和四子样的对比。(In the field of strapdown inertial navigation attitude updating algorithm simulation, including two sample, the third and the fourth kind of contrast.)

别人的程序（Fortran）是关于边界元法求解声学问题。(Someone else' s program (Fortran) is on the boundary element method to solve acoustic problems.)

一种声场计算模型的源程序，for3d的一个较旧版本。(for3d programme the old one )

有限元计算开源库，可以用于计算动力、静力、磁场等等方面的计算(Finite element calculation open source library)

该文件含残差点数目计算、均方差计算、信噪比计算、边缘等效视数计算(The document containing terms of the number of residues are calculated variance, SNR calculation, calculation of equivalent number of edges)

这是非均匀B样条曲线构造方法代码，如果有问题可以邮件联系：wuxiaod1987@163.com(NUBUS Spline Build)

一个简单的LM算法程序，可以帮助你理解LM算法，还包括LM的解释(The neural network control method is used to control the unit step input of the controlled object)