xunhunbohuo

说明：  神经网络与matlab7的实现 配套资料下载 .m格式(neural network and the realization matlab7 supporting information downloaded. M format)

遗传算法学习文档，是ppt课件资料，不错的课件！！(Study documents the genetic algorithm is ppt courseware information, good courseware! !)

把地心惯性坐标系中的坐标转换为经度纬度和高度(convert Geocentric inertial coordinate system to longitude latitude and altitude)

有限差分方法（网格法）是最早使用的一种电磁场数 值计算方法。 边值问题 物理思想：场域离散。 （连续区域→网格和节点） 数学基础：差分原理。 （微商→差商） 线性代数方程组 §6-3 有限差分方法 作为数值计算方法，有限差分法将连续场域的问题变换 为离散系统的问题（连续场域划分为若干个细小的区域：网 格和节点）。也就是说通过离散化模型上各离散点的数值解 来逼近连续场域内的真实解。(The finite difference method (grid method) is the earliest use of an electromagnetic field the number of Value method. Boundary Value Problems Physical idea: the field of discrete. (Contiguous area → grid nodes) Mathematical foundations: the difference principle. (The Derivative → difference quotient) Linear algebraic equations. § 6-3 Finite Difference Method Numerical methods, finite difference method will transform the problem of the continuous field For discrete systems (continuous field is divided into several small areas: network Grid nodes). That is, the value of the discrete points in the discrete model solution To approximate the true solution of the continuous field domain.)

用matlab编写的三维魔方模拟显示，直接运行first.m即可(Three-dimensional cube simulation using matlab display, can be run directly first.m)

用于接收机的载波同步，利用锁相环实现解调，用于相干解调(Carrier for receiver synchronization, phase-locked loop to achieve demodulation for coherent demodulation)

用MATLAB仿真AD设计中的DNL和INL计算(AD Design using MATLAB simulation of the DNL and INL calculation)

Rayleigh fading channel based on the Filtered Gaussian Noise method and r based on the Sum of Sinusoids method(simulation for Rayleigh fading channel -Plot the channel output for fm T = 0.01, 0.1 and 0.5 (t/T = 0 ~ 300) – Plot the channel output autocorrelation for fm T = 0.01, 0.1 and 1.0 (fm  = 0 ~ 10))

相位梯度自聚焦算法（PGA）的matlab程序实现，合成孔径雷达中最经典最常用的自聚焦和运动误差补偿方法(The phase gradient autofocus algorithm (PGA) of matlab implementation, the most classic of the most commonly used in synthetic aperture radar self-focusing and the motion error compensation method)

说明：  一种三维路径规划算法，将高分辨率网格简化为具有二次误差度量的低分辨率网格(A 3D path planning algorithm simplifies high resolution meshes to low resolution one with Quadric Error Metric, for example, simplifies a mesh with 10000 vertices to a mesh with 200 vertices)