Journal of Projectiles, Rockets, Missiles and Guidance >
Velocity Measurementof Unmanned Aerial Vehicle Based on Sequential Downward Looking Images
Received date: 2013-06-19
Online published: 2025-05-30
In order to measure the ground speed with real time and high precision, a method of velocity measurement based on the sequential downward-looking images for UAV was proposed. We developed a feature points matching algorithm with the aid of inertial stabilizing. The angular movement during capturing images is compensated by means of the airborne gyroscope. The image aberrations of the two corresponding ground points in adjacent images can be obtained fastly and stably. When the altimeter is available, the ground velocity of the UAV may be provided. The simulation in virtual scene was carried out, and compared with other matching algorithms, the results show that this method is less time-consuming and with higher precision.
Key words： UAV; navigation; image feature match
HUANG Zhiren , CHEN Qiu , HE Ying , LI Suilao . Velocity Measurementof Unmanned Aerial Vehicle Based on Sequential Downward Looking Images[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2014 , 34(2) : 172 -174 . DOI: 10.15892/j.cnki.djzdxb.2014.02.052
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