An Adaptive H infinity Control Algorithm for Jitter Control and Target Tracking in a Directed Energy Weapon
Abstract
In recent years the Office of Naval Research has undertaken the challenges posed by directed energy weapons with the creation of the Directed Energy Weapons Program. This program is aimed at developing more accurate and efficient directed energy. The program identified five main fields of focus necessary for creating an effective directed energy weapons system. A laser travels at the speed of light, redefining the type of targeting and tracking method used. It must remain on target, at a precise location, for the entire duration of fire to achieve maximum effectiveness. Directed energy weapons, like all mechanical systems, are subject to vibrations which cause the beam to deviate. With on-target precision being such an important aspect, the slightest vibrations in the directed energy system can cause tremendous problems. Accuracy is needed at the microradian level. This project will address two primary challenges of a directed energy weapon: platform jitter and target tracking. First, to control platform jitter, an adaptive controller was created to actively identify and attenuate tonal frequencies of the platform. With a stable beam, a second controller tracks and targets the laser onto a moving target at distance of approximately 5 m. The results show reduction in induced jitter by over 78%, showing a potential to significantly increase the effectiveness of directed energy weapons.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 16, 2012
- Accession Number
- ADA575864
Entities
People
- Shane C. Moran
Organizations
- United States Naval Academy