The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2007
Filed:
Feb. 24, 2005
Jonathan L. Weber, Nashua, NH (US);
Timothy J. O'donnell, Bedford, NH (US);
Norman O. Marler, Mont Vernon, NH (US);
Kathryn G. Lanier, Mont Vernon, NH (US);
Jonathan L. Weber, Nashua, NH (US);
Timothy J. O'Donnell, Bedford, NH (US);
Norman O. Marler, Mont Vernon, NH (US);
Kathryn G. Lanier, Mont Vernon, NH (US);
BAE Systems Information and Electric Systems Integration Inc., Nashua, NH (US);
Abstract
It has been found that target optics produce non-specular, augmented optical returns when interrogated by a laser pulse. This non-specular radiation is detected by an active laser search system employing a direct-reading, thresholded focal plane detector that is able to detect non-cooperating targets with optics that employ a detector or optical element at the focal plane of their receiving optics. The pulses returned from such target optics have a width commensurate with the original transmitted pulse width, whereas passive background noise and the spread out active returns from the ground exhibit temporally long returns. By setting the sensor threshold sufficiently high, the system discriminates against noise and clutter while at the same time reducing the number of sweeps required to detect a target within the search area.