com.yarin.android.FileManager.FileManager

Convert from latitude, longitude, and altitude (geodetic with respect to the WGS-84 ellipsoid) to a position vector in the Earth-centered, Earth-fixed (ECEF reference frame.

清华大学张旭东老师《现代信号处理》课第二次大作业代码。高效正确地实现LMS算法。(This is an efficient and correct implementation of the LMS algorithm .This code is especially for the project of modern signal processing ,which is tought by Zhang Xudong in Tsinghua University.)

nonlinear secant method

用有限元方法解偏微分方程的算例。区域是[0,1]*[0,1]的正方形区域，区域剖分网格是标准正方形。区域剖分、节点计算、转化成代数方程求解，结果画图显示及txt结果输出，每一步都很详细。(Two-dimensional numerical example of using the finite element method for solving partial differential equations . Region is a [0,1]* [0,1] of the square region, a square region of a standard mesh grid. Regional split, node calculation, converted into algebraic equations, the results display and txt file result output, each step is very detailed.)

Given a complex matrix X, OX=ADJPH(X) returns the complex matrix OX that is obtained from X by multiplying column vectors of X with phase factors exp(i*phi) such that the real part and the imaginary part of each column vector of OX are orthogonal and the norm of the real part is greater than or equal to the norm of the imaginary part.

MVDR是空域DOA的一种方法。可以对信号进行加强，对干扰进行抑制，同时去除高斯白噪声。最终得到方向。(MVDR is a method of DOA airspace. The signal can be enhanced interference suppression while removing Gaussian white noise.)

介绍如何用较复杂的方法去优化对负载具有感知特性的“黑匣子”模型的神经网络控制。(Shows how to use the complex method to optimize a black-box neural network model of a load-sensing )

《遗传算法理论应用与软件实现》中的初始化MATLAB源代码("genetic algorithm theory and application software," the source code initialization MATLAB)

一个matlab里面的基本操作的演示程序(Matlab basic operation inside a demonstration program)

说明：  在前面1维FDTD的基础上给出了2维的FDTD程序。可以帮助我们解决比如波导，光纤中的电磁场计算问题。尤其是给出了边界条件的设置方法。(in front of a peacekeeping FDTD given on the basis of two-dimensional FDTD procedures. We can help solve such as waveguides, optical fiber of electromagnetic computation. In particular, given the boundary conditions be set.)