Analysis of Environmental Assessment Procedures during OTH Emulator Test Flights

HP propagation ionograms made between the OTH radar in Maine and the AFGL Airborne Ionospheric Observatory were analyzed. MOF values for the various modes identified were compared with MUF values derived from a quasi-mid-point ionospheric sounder (Argentia, Newfoundland). Discrepancies between MUFF1...

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Bibliographic Details
Main Authors: Sales, Gary S., Buchau, Jurgen
Other Authors: LOWELL UNIV MA CENTER FOR ATMOSPHERIC RESEARCH
Format: Text
Language:English
Published: 1987
Subjects:
Active & Passive Radar Detection & Equipment
Radiofrequency Wave Propagation
*IONOSPHERIC PROPAGATION
HIGH FREQUENCY
AIRBORNE
RADAR SIGNALS
RAY TRACING
MAINE
RADAR STATIONS
OVER THE HORIZON RADAR
IONOGRAMS
ATMOSPHERIC SOUNDING
MEASUREMENT
SELECTION
MUF(MAXIMUM USABLE FREQUENCY)
MOF(MAXIMUM OPERATING FREQUENCY)
FREQUENCY MANAGEMENT
PE62101F
WUAFGL46430807
Newfoundland
Online Access:http://www.dtic.mil/docs/citations/ADA206817
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA206817
Description
Summary:HP propagation ionograms made between the OTH radar in Maine and the AFGL Airborne Ionospheric Observatory were analyzed. MOF values for the various modes identified were compared with MUF values derived from a quasi-mid-point ionospheric sounder (Argentia, Newfoundland). Discrepancies between MUFF1 and MOFF1 values were resolved by ray tracing through a realistic ionosphere (derived from the Argentia ionograms) and identified was due to difficulties in mode identification, when the E mode was dominant. The analysis shows that the MUF determination from mid-point vertical incidence ionograms provides acceptable frequency selection criteria for radar management.

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