Projectile Follower Ranging and Tracking Control System

Period of Performance: 08/05/1993 - 08/04/1995


Phase 2 SBIR

Recipient Firm

Ite, Inc.
Beltsville, MD 20705
Principal Investigator

Research Topics


The Phase II program will perform an evaluation of the gun barrel characteristics and sensing system and evaluate the correction factors required to implement a tracking algorithm. This effort will develop an enhanced sensing and prediction scheme for the PFS. The design, fabrication, test and integration of a real time in barrel ranging system and a projectile tracking system for use with PFS in a closed loop control configuration are objectives of this phase. The PFS will use a ranging system to determine the prjectile exit profile from the gun barrel and select the correction profile of the mirror drive. An acquisition sensor system will initiate active control of the PFS mirror as the projectile accelerates from the gun barrel. A tracking system is used in conjunction with the PFS and tracks the projectile after it exits the muzzle. The proposed system utilizes a short pulse high repetition rate laser illuminator, expanded acquisition, sensor conditioning, and angle and range measurement system to develop angle errors and provide target discrimination. An inner loop Two Axis Beam Steerer maintains the tracking detector field of view and the laser beam on the projectile for real time control of the Projectile Follower Tracking System.