airplane_design

运用粒子群优化算法对ARMA(p,q)模型的阶数进行优化是可行的，且利用优化后的ARMA模型对航空发电机状态趋势进行分析的结果十分准确，与原始数据所表现出的航空发电机状态变化趋势基本一致。经计算，此时分析结果的平均相对误差较小，仅为1.38 ，与优化前构建的ARMA模型相比，平均相对误差降低0.23个百分点，优化效果明显。(Using particle swarm optimization algorithm to optimize the order of the ARMA (p, q) model is feasible, and the use of the results of the ARMA model optimized air generator status trends analysis is very accurate, and the raw data showed aviation the generator status consistent trend. Calculated analysis of the results, the average relative error is small, only 1.38 , compared with the the ARMA model built before optimization, average relative error is reduced by 0.23 percentage points, to optimize the effect is obvious.)

TSP问题的matlab实现程序,该程序在机器上可以正常运行,现提供给大家参考(TSP issues realize matlab program on the machine can function properly, is now available to U.S. reference)

模拟真空中Gauss光束的三维场分布，方便加深高斯光束性质的理解(Simulate the three-dimensional field distribution of Gauss beam in vacuum and facilitate better understanding of the nature of Gaussian beam.)

matlab的直接序列扩频DSSS的Rake接收机仿真(DSSS direct sequence spread spectrum matlab the Rake Receiver Simulation)

首先介绍MATLAB的基本知识及基本运算，使读者对MATLAB有一个概略的了解，然后系统论述图形绘制技术的基本概念、工作原理及在工程中的应用。书中精选科学和工程中常用的多个算法，全部采用MATLAB语言编程实现，并结合实例对算法程序进行验证和分析。其中详细讲解了MATLAB的基本知识、二维图形的绘制、三维图形的绘制、高级图形绘制技术、动画与视频、几何造型及GUI的程序设计等内容。(First introduced in MATLAB basic knowledge and basic operations, allowing the reader to have a rough understanding of MATLAB and then systematically discusses the basic concepts of graphics rendering technology, working principle and in engineering. The book featured commonly used in science and engineering multiple algorithms, all using MATLAB programming language, with examples for algorithm verification and analysis. Which explained in detail the basics of MATLAB, two-dimensional graphics rendering, 3D graphics rendering, advanced graphics rendering, animation and video, geometric modeling and GUI programming and other content.)

Newton Raphson lod flow

说明：  有限差分声波波动方程正演。主要用于地震勘探正演(Finite difference method of acoustic wave equation forward modeling)

研究高超声速飞行器在纵向的运动情况，对系统的速度和飞行高度进行仿真分析，我们将对在不同的 、 值的条件下分析出系统的最优性能(The longitudinal motion of the hypersonic vehicle is studied, and the system speed and flight height are simulated. We will analyze the optimal performance of the system under different conditions and values.)

各类非线性方程组求解的公式的实现，较为简洁，可直接调用(Various types of nonlinear equations of the formula to achieve, the more simple, direct call)

使用matlab编程实现了凤凰传奇的音乐《最炫民族风》。(use the matlab realize the music of 最炫民族风)