Accession Number:

AD0781859

Title:

Development and Test of Low Impact Resistance Structures. Volume II. Interference of Low Impact Resistance Structures with Instrument Landing System (ILS) Signals.

Descriptive Note:

Final rept. on phase 1,

Corporate Author:

ASE INC PENNSAUKEN NJ

Personal Author(s):

• Spencer, Roy C.

Report Date:

1974-02-01

Pagination or Media Count:

89.0

Abstract:

Scattering of radiation by the ALS light supports in front of the Course Antenna will not result in course errors. There are three reasons for this conclusion 1 The forward scattering from the poles is weak. 2 Each pole is so close to the center line that no detectable phase change could be noted by an incoming plane. 3 The symmetric arrangement of poles cancels out any asymmetrical affect of one pole. Modified author abstract

Descriptors:

• *INSTRUMENT LANDINGS
• SUPPORTS
• STRUCTURAL COMPONENTS
• ELECTROMAGNETIC INTERFERENCE
• ELECTROMAGNETIC SCATTERING
• APPROACH LIGHTS
• ERRORS

Subject Categories:

• Air Navigation and Guidance
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE