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arXiv 1509.03388cs.RO
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一种改进的四旋翼微型飞行器状态估计:一种新的无漂移速度估计器

Improved State Estimation in Quadrotor MAVs: A Novel Drift-Free Velocity Estimator

University of Technology Sydney(悉尼科技大学);University of Moratuwa(莫拉图瓦大学)

Dinuka Abeywardena, Sarath Kodagoda, Gamini Dissanayake, Rohan Munasinghe

摘要:

本文介绍了一种新的四旋翼微型飞行器的状态估计器的综合和评估。将与加速度、姿态和气动螺旋桨阻力相关的动力学方程封装在扩展的卡尔曼滤波器框架中,用于估计四旋翼的速度和姿态。它表明,利用机身框架加速度和速度之间的关系,由于叶片挥舞,使漂移自由估计的横向和纵向分量的机身框架平移速度,随着改进的滚动和俯仰分量的身体姿态估计。真实世界的数据集收集使用商业现成的四旋翼平台,连同地面实况数据从Vicon系统,被用来评估所提出的算法的有效性。

英文摘要:

This paper describes the synthesis and evaluation of a novel state estimator for a Quadrotor Micro Aerial Vehicle. Dynamic equations which relate acceleration, attitude and the aero-dynamic propeller drag are encapsulated in an extended Kalman filter framework for estimating the velocity and the attitude of the quadrotor. It is demonstrated that exploiting the relationship between the body frame accelerations and velocities, due to blade flapping, enables drift free estimation of lateral and longitudinal components of body frame translational velocity along with improvements to roll and pitch components of body attitude estimations. Real world data sets gathered using a commercial off-the-shelf quadrotor platform, together with ground truth data from a Vicon system, are used to evaluate the effectiveness of the proposed algorithm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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