Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1956-02-29
1980-09-16
Blum, Theodore M.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 302
Patent
active
042233119
ABSTRACT:
1. A system for locating the position of an energy radiating source comprng three radiated energy receiving means arranged in predetermined substantially linear spaced positions and each producing an output signal in response to energy received thereby, a plurality of individual signal clipping means respectively connected to each of said receiving means for limiting the characteristics of said output signal therefrom to the instantaneous polarity of said signal, means connected to the respective signal clipping means for effecting polarity correlation between the clipped output signals of a predetermined pair of signal receiving means, electrical means serially connected between said receiving means and said correlation means for selectively introducing a delay of the signal from at least one signal receiving means sufficient to maximize the polarity correlation of said signals, said electrical delay means being calibrated to give the bearing to said source, a second means for effecting polarity correlation, the third energy receiving means being positioned intermediate and in aligned spaced relation to said predetermined pair of energy receiving means when the signals of said pair are in maximum polarity correlation, an additional electrical delay means connected between the third receiving means and said second means for maximizing polarity correlation between the clipped signals from the three receiving means, said additional electrical delay means being calibrated to indicate the range to said source when the clipped signals of said three receiving means are in maximum polarity correlation.
REFERENCES:
patent: 2349370 (1944-05-01), Orner
patent: 2523398 (1950-09-01), Southworth
patent: 2932002 (1960-04-01), Keiser
Blum Theodore M.
Branning A. L.
Sciascia R. S.
The United States of America as represented by the Secretary of
LandOfFree
Long range listening system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Long range listening system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long range listening system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-543139