Application of stereo laser tracking methods for quantifying flight dynamics-II

Timothy J. Miller; Edward F. Romero; Hubert W. Schreier; Michael T. Valley

doi:10.1117/12.795959

20 August 2008 Application of stereo laser tracking methods for quantifying flight dynamics-II

Timothy J. Miller, Edward F. Romero, Hubert W. Schreier, Michael T. Valley

Proceedings Volume 7090, Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation II; 709003 (2008) https://doi.org/10.1117/12.795959
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

Conventional tracking systems measure time-space-position data and collect imagery to quantify the flight dynamics of tracked targets. A major obstacle that severely impacts the accuracy of the target characterization is atmospheric turbulence induced distortion of the tracking laser beam and imagery degradations. Tracking occurs in a continuously changing atmosphere resulting in rapid variations in the tracking laser beam and distorted imagery. These atmospheric effects, combined with other degradation effects such as measurement system motion, defocus blur, and spatially varying noise, severely limit the viability and accuracy of many tracking and imagery-based analysis methods. In 2007, using a high speed sled test, the feasibility of quantifying flight dynamics with stereo laser tracking and multi-video imagery was demonstrated. The technique acquires stereo views (two or more) of a moving test article that has an applied random speckle (dot) pattern painted on the surface to provide unique tracking points. The stereo views are reconciled via coordinate transformations and correlation of the transformed images. The 2007 results demonstrated that dual laser tracker data can be used to update camera calibration data for stereo imaging to extend the image correlation approach to moving field of view applications such as missile tracking and missile performance characterization, e.g., attitude measurements. However, these results were predominantly qualitative in nature, focusing on the degree of correlation. This paper will present quantitative results from 2008 outdoor centrifuge tests and assess the digital image correlation accuracy for time varying attitude and position measurements.

Citation Download Citation

Timothy J. Miller, Edward F. Romero, Hubert W. Schreier, and Michael T. Valley "Application of stereo laser tracking methods for quantifying flight dynamics-II", Proc. SPIE 7090, Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation II, 709003 (20 August 2008); https://doi.org/10.1117/12.795959

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Digital image correlation

Cameras

Computer programming

Calibration

Imaging systems

Speckle pattern

Image processing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years