Spot-Centroid Determination Algorithms in Semiactive Laser Photodiodes for Artillery Applications
Joint Authors
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-27
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Precision of guided projectiles depends equally on the accuracy in determining the coordinates of the objective and on the exactness of the measurement devices utilized for position and attitude calculation of the projectile.
Development of algorithms for low-cost high-precision terminal guidance systems is a cornerstone in research in this field.
Semiactive laser (SAL) kits, and particularly quadrant detector devices, have been developed to improve precision in guided weapons.
Photodetection system can be functionally divided into two main parts: sensing and processing.
The sensed signal is processed to estimate the spot coordinates, i.e., the laser footprint, which provides some information regarding projectile-target relative position, to obtain the needed information for the navigation and guidance algorithms.
The electrical intensities that a real sensor provides under laboratory conditions are compared to a mathematical model based on area intersection calculations to simulate the intensities on real flights.
Then, four different processing algorithms, two of them rational, and the other two logarithmic, are tested for different spot sizes, which are nonlinear.
Proposing an interpolation algorithm based on the four electrical intensities obtained in a semiactive laser quadrant photodetector, laser footprint center estimation is improved for artillery applications.
Finally, an example illustrating a projectile flight is employed to compare real and calculated laser footprints in order to select the best algorithm for artillery applications.
American Psychological Association (APA)
de Celis, Raúl& Cadarso, Luis. 2019. Spot-Centroid Determination Algorithms in Semiactive Laser Photodiodes for Artillery Applications. Journal of Sensors،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1191629
Modern Language Association (MLA)
de Celis, Raúl& Cadarso, Luis. Spot-Centroid Determination Algorithms in Semiactive Laser Photodiodes for Artillery Applications. Journal of Sensors No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1191629
American Medical Association (AMA)
de Celis, Raúl& Cadarso, Luis. Spot-Centroid Determination Algorithms in Semiactive Laser Photodiodes for Artillery Applications. Journal of Sensors. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1191629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1191629