Accession Number:

ADA191148

Title:

TDWR (Terminal Doppler Weather Radar) Clutter Residue Map Generation and Usage

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

• Mann, Dwayne R.

Report Date:

1988-01-29

Pagination or Media Count:

24.0

Abstract:

The Terminal Doppler Weather Radar TDWR system is designed to provide high quality low altitude Doppler radar data near airports. Ground clutter suppression will be a major challenge to supplying such high quality Doppler data. To confront this challenge the FAA has specified stringent clutter suppression requirements in the TDWR technical specifications. These specifications are designed to provide an effective clutter suppression system. In particular, the specifications require an antenna with narrow beam width and low side-lobes to minimize ground target illumination. Also, a high pass frequency filter with a stop attenuation in excess of 50 dB is required to reduce stationary clutter. Finally, a clutter residue map editing system is used to remove remaining clutter. This report describes the algorithms used to generate and use the clutter residue editing system. The major issues are discussed followed by a description of the algorithms designed to address these issues. Finally, preliminary experimental results using a clutter residue map are presented.

Descriptors:

• *ALGORITHMS
• *DOPPLER RADAR
• *SUPPRESSION
• *GROUND CLUTTER
• *METEOROLOGICAL RADAR
• REQUIREMENTS
• HIGH FREQUENCY
• LOW LEVEL
• WIDTH
• SIDELOBES
• NARROW BEAMS(RADIATION)
• EDITING
• HIGH PASS FILTERS
• SURFACE TARGETS
• DOPPLER SYSTEMS
• ATTENUATION
• STATIONARY
• ILLUMINATION
• SPECIFICATIONS
• CLUTTER

Subject Categories:

• Computer Programming and Software
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE