| || High-angular Resolution Laser Threat Warner
Author : Kumar, Sushil;Gomekar, S. P. ;Maini, A. K.
Source : Defence Science Journal ; Vol:57(4) ; 2007 ; pp 361-365
Subject : 629.7 Aeronautics
Keywords : High-angular resolution laser threat warner;Angle-of-arrival accuracy;Field of view;Operational range;Single-pulse detection capability;False alarm rate;Weapon platform;Laserguided munitions;Visible and near-IR-pulsed solid-state laser;Azimuth and elevation direction;Defensive and offensive electrooptic counter measure;EOCM
Abstract : In this paper, the design and development aspects of a high-angular resolution laser-threat Warner developed at the Laser Science & Technology Centre (LASTEC), Delhi are presented. It describes a high-angular resolution laser-threat warner capable of giving warning with a resolution of i 3" when it is exposed to laser radiation from visible and near-IR pulsed solid-state laser source. It has a field of view of 90' in the azimuth direction, whereas the elevation coverage is between -5" and + 25". It is capable of handling multiple types of laser threats covering wavelength from 400 nm to 1100 nm and has an operational range of 4 km for a Q-switched laser source energy (10 ns) of 10 mJ/pulse and output beam divergence of 1 mrad. The paper also describes its simulated evaluation process and field-testing which it has undergone. The result of field-testing confirms that it meets all its performance specifications mentioned above.