Phase and time-difference precision direction finding system

Details Phase and time-difference precision direction finding system Phase and time-difference precision direction finding system

1996-11-27

1998-03-03

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342 56, 342417, 342424, G01S 504

Patent

active

057240477

ABSTRACT:
A precision direction finding system for making precision angle of arrival estimates for a signal received through two antenna elements separated in space. Phase interferometry is used to determine a precise angle of arrival, with multiple ambiguities due to the periodic nature of the phase difference related to geometric angle. The interferometric ambiguities are resolved using the time difference of arrival (TDOA) of the signal at the two antenna elements. TDOA is measured using leading edge envelope detection for simple pulsed signals, and predetection correlation for phase and frequency modulated signals.

REFERENCES:
patent: 4638321 (1987-01-01), Drogin
patent: 4888593 (1989-12-01), Friedman et al.
patent: 5285209 (1994-02-01), Sharpin et al.
patent: 5541608 (1996-07-01), Murphy et al.
patent: 5568154 (1996-10-01), Cohen
patent: 5608411 (1997-03-01), Rose

Affiliated with

Also associated with

Rating

Phase and time-difference precision direction finding 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 Phase and time-difference precision direction finding system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase and time-difference precision direction finding system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2252478