Accession Number:

ADA048979

Title:

System Design Study for Infrared Airborne Radar (IRAR)

Descriptive Note:

Technical note.

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

• Becherer, Richard J.

Report Date:

1977-10-18

Pagination or Media Count:

73.0

Abstract:

This technical note describes the design of a tactical near-all- weather infrared airborne radar IRAR. The requirements for this radar include both 1 wide field MTI search for target detection against a cluttered terrain background and 2 narrow field high angular resolution imagery for target recognition and identification. The principal new technology issues identified and techniques proposed include a heterodyne detection antennareceiver in an array configuration, compact Maksutov-Cassegrain telescope optics design, MTI pulse integration signal processing, and real time image processing for speckle and glint reduction. Expected weather penetration capability for this radar is assessed with the aid of a recent analysis of real weather data from a number of locations in Central Europe.

Descriptors:

• *INFRARED TRACKING
• *FORWARD LOOKING INFRARED SYSTEMS
• *OPTICAL RADAR
• INFRARED LASERS
• TRACKING TELESCOPES
• RADAR CLUTTER
• ALL WEATHER AVIATION
• LOCAL OSCILLATORS
• INFRARED TELESCOPES
• MOVING TARGET INDICATORS
• RESOLUTION
• AIRBORNE
• HETERODYNING
• INFRARED IMAGES

Subject Categories:

• Lasers and Masers
• Infrared Detection and Detectors
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE