NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Polarization mismatch errors in radio phase interferometers.An analysis is presented which deals with the effects of polarization mismatch errors on the accuracy of a phase interferometer used for position location of unknown emitters relative to known calibration emitters. Closed-form expressions for the induced phase difference between interferometer antennas are derived for several combinations of receiving and transmitting antenna polarizations. Errors contributed by mechanical misalignment between antennas, as well as effects of power loss attributable to polarization mismatch, are also considered. The analysis leads to the conclusion that circularly polarized interferometer and transmitter antennas are best suited for the position location application, if it is assumed that polarization tracking of the interferometer antennas is not available. It is shown that a reasonable amount of ellipticity can be tolerated before the phase error becomes significant.
Document ID
19720048111
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Muehldorf, E. I.
(IBM Corp. Manassas, Va., United States)
Teichman, M. A.
(IBM Corp. Gaithersburg, Md., United States)
Kramer, E.
(Electromagnetic Systems Laboratories, Inc. Sunnyvale, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
March 1, 1972
Publication Information
Publication: IEEE Transactions on Aerospace and Electronic Systems
Volume: AES-8
Subject Category
Electronic Equipment
Accession Number
72A31777
Funding Number(s)
CONTRACT_GRANT: NAS5-21043
CONTRACT_GRANT: NAS5-11609
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available