Shipboard Application of Low Angle Mmw Track Radar

Period of Performance: 01/01/1988 - 12/31/1988

$500K

Phase 2 SBIR

Recipient Firm

Centra Technology, Inc.
3204 Monroe St - Ste 300
Rockville, MD 20852
Principal Investigator

Abstract

CENTRA TECHNOLOGY INC. PROPOSES A PHASE II SBIR EFFORT TO INVESTIGATE THE POTENTIAL OF MILLIMETER WAVE, MMW, TRACK RADARS TO ACCURATELY TRACK AND SUPPORT THE ENGAGEMENT OF LOW FLYING TARGETS. A PHASE I STUDY (TOPIC N87-72, "USE OF MILLIMETER WAVE TECHNOLOGY IN NAVAL SHIPBORNE RADAR APPLICATIONS," CONTRACT N00024-88-C-5126) SHOWED THAT MMW TRACK RADARS OFFER SIGNIFICANT POTENTIAL TO IMPROVE THE ABILITY OF SHIPBOARD WEAPONS SYSTEMS TO COUNTER LOW FLYING TARGETS. HOWEVER, PHASE I ALSO UNCOVERED SEVERAL ISSUES WHICH BEAR ON ACHIEVABLE TRACK ACCURACIES. IN PARTICULAR, THE EFFECTS OF MULTIPATH, PROPAGATION, CLUTTER, AND TRACKING TECHNIQUES ARE CRITICAL. THESE DOMINATE TRACK ERRORS ON LOW FLYERS AND PLAY A LARGE ROLE IN DETERMINING THE COMPLEXITY OF THE WEAPON USED TO ENGAGE THE TARGET. THESE EFFECTS WILL BE INVESTIGATED IN DETAIL AND ADVANCED MMW TRACK RADARS AND WEAPONS SYSTEMS CONCEPTS WILL BE DESIGNED AND EVALUATED IN PHASE II. THE ABILITY OF DIFFERENTIAL TRACKING TO REDUCE TRACK BIASES AND ERRORS CAUSED BY MULTIPATH WILL BE DETERMINED THROUGH ANALYSIS AND SIMULATION. A PRIMARY OBJECTIVE WILL BE TO DEVELOP AN ADVANCED TRACKING STRATEGY TO PROVIDE CONTINUOUS TRACK ON LOW FLYERS INSIDE 8 nmi WITH TRACK ACCURACYY BETTER THAN 0.2 mrad AT A RANGE OF 3 nmi FOR TARGET HEIGHTS DOWN TO 4 FT.