Accession Number : AD0757744

Title :   O'Hare ASDE-2 Radome Performance in Rain; Analysis and Improvement.

Descriptive Note : Final rept. Jan-Jul 72,

Corporate Author : TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS

Personal Author(s) : Weigand,Robert M.

Report Date : MAR 1973

Pagination or Media Count : 78

Abstract : The operational performance of the ASDE-2 radar at O'Hare Airport is severely limited during periods of moderate to heavy rainfall. Using the system performance specifications, an estimate has been made of the ASDE-2's tolerance to power loss and degradation of its circular polarization produced by a radome. Three aspects of the O'Hare radome were examined as potential sources of excessive loss. These are (a) the metal space frame, (b) the dielectric constant and loss tangent of the membrane material, and (c) the membrane surface properties. (Author Modified Abstract)

Descriptors :   (*AIRPORT RADAR SYSTEMS, RADOMES), (*RADOMES, RELIABILITY(ELECTRONICS)), RAINFALL, COATINGS, PERFORMANCE(ENGINEERING), POLARIZATION, RADAR CLUTTER, ATTENUATION, POLYESTER PLASTICS

Subject Categories : Air Navigation and Guidance
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE