Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1991-03-15
1992-03-24
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
342423, 342424, 342442, 342445, G01S 502
Patent
active
050992481
ABSTRACT:
An apparatus and method for determining the direction of origin of a received transmission signal using a spinning antenna pair generally provides the steps and apparatus for measuring the phase difference between signals simultaneously received, coarsely approximating the direction of origin of the transmission signal, reconstructing a phase difference signal using the measured phase differences and a calculated signal based upon the coarse approximation, correcting the reconstructed phase signal based upon the first derivatives of the reconstructed signal and the calculated signal, and determining the direction of origin based upon the corrected reconstructed phase signal.
REFERENCES:
patent: 3149334 (1964-09-01), Cleaver et al.
patent: 3167773 (1965-01-01), Byatt
patent: 3392391 (1968-07-01), Royal
patent: 4528567 (1985-07-01), Miles et al.
Gomes David W.
Hellner Mark
Lockheed Sanders, Inc.
LandOfFree
Transmission signal direction finding apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission signal direction finding apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission signal direction finding apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2013396