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gaodu
四旋翼无人机是一种具有六个自由度和四个输入的欠驱动强耦合、外型新颖结构简单的飞行器。由于其具有制造成本地、重量轻、体积小、操作简单、使用方便、隐身性好、对作战环境要求低的特点，使其能准确、高效的执行各种军事或民用任务，因此四旋翼无人机具有一定的军事和民用价值。本课题针对四旋翼无人机的特点和飞行原理，对其动力学分析以及运动控制的研究，利用牛顿—欧拉方程，建立了四旋翼无人机的动力学模型,并针对该模型设计了PID四通道控制系统,且在Matlab/Simulink仿真平台上,利用PID控制系统对四旋翼无人机进行仿真，完成了对四旋翼无人机运动控制和与地面运动物体的交会，仿真结果表明：仅仅通过改变四只旋翼的转速来改变升力，进而改变四旋翼无人机的姿态控制和位置控制，从而实现了四旋翼无人机的运动控制以及与地面运动物体的交会。(Height Control of Four-Rotor Aircraft)
- 2020-06-26 20:40:01下载
- 积分：1
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2012de6.8
2012超级模块 希望大家支持一下啊 2012超级模块 希望大家支持一下啊 (The 2012 super module.)
- 2015-05-02 04:17:46下载
- 积分：1
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简单的学籍管理，虽然只有8kb但可以运行，适用于非计算机专业的C设计...
简单的学籍管理，虽然只有8kb但可以运行，适用于非计算机专业的C设计-simple unsuccessful management, although only 8kb but can run, apply to non-computer professional C Design
- 2023-06-01 17:25:02下载
- 积分：1
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svr
说明： 一维支持向量机回归以及二维支持向量机回归(One-dimensional support vector machine regression, as well as two-dimensional support vector machine regression)
- 2008-09-11 22:07:40下载
- 积分：1
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赌场骰子游戏[编程原理
Casino Dice Game [Programming Principles One - Assignment 2] -Casino Dice Game [Programming Principles One- Assignment 2]
- 2022-08-15 00:18:31下载
- 积分：1
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基于Matlab GUI的FIR滤波器
说明： 基于Matlab GUI的FIR滤波器
实际中，一般调用MATLAB信号处理工具箱函数remezord来计算等波纹滤波器阶数N和加权函数W(ω)，调用函数remez可进行等波纹滤波器的设计，直接求出滤波器系数。函数remezord中的数组fedge为通带和阻带边界频率，数组mval是两个边界处的幅值，而数组dev是通带和阻带的波动，fs是采样频率单位为Hz。(FIR filter based on matlab gui. In practice, the MATLAB signal processing toolbox function remezord is generally called to calculate the order N of the equiripple filter and the weighting function W . The call function remez can be used to design the equiripple filter and directly calculate the filter coefficients. The array fedge in the function remezord is the pass-band and stop-band boundary frequencies, the array mval is the amplitude at the two boundaries, the array dev is the fluctuation of the pass-band and stop-band, and fs is the sampling frequency unit in Hz.)
- 2021-02-14 16:19:48下载
- 积分：1
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juliangfa
说明： 设计一八木天线，振子数目为4，长度分别为：反射器长度0.39，主馈振子长度0.356，引向器长度均为0.3；反射器和主馈振子的距离0.265，主馈振子和第一引向器的距离0.2575，第一引向器和第二引向器的距离0.225。天线工作频率为400MHz，各振子分段数为9。
利用矩量法模拟该天线的电流分布，并绘制方向图。(A eight wood antenna is designed. The number of vibrators is 4 and the length is 0.39 for the reflector, 0.356 for the main feeder and 0.3 for the director. The distance between the reflector and the main feeder is 0.265, 0.2575 for the main feeder and the first director. The distance between the first director and the second director is 0.225. The working frequency of the antenna is 400MHz and the number of segments of each vibrator is 9.)
- 2020-02-20 22:53:54下载
- 积分：1
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vc写的游戏，不是很垃圾
vc写的游戏，不是很垃圾-vc of the game was not very rubbish
- 2022-02-02 00:59:56下载
- 积分：1
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SAF
SAF-LMS自适应滤波算法，信号增强示例(SAF-LMS adaptive filtering algorithm, signal enhancement example)
- 2018-07-04 21:24:19下载
- 积分：1
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Tcl编程教程
说明： 本书为Tcl编程教程，为opensees编程提供基础。(This book is about tcl programming)
- 2019-10-25 13:21:41下载
- 积分：1
