Electronic null-seeking goniometer for ADF

Details Electronic null-seeking goniometer for ADF Electronic null-seeking goniometer for ADF

1985-05-20

1987-03-31

Blum, Theodore M.

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

Directive

Beacon or receiver

342429, 342431, 342441, G01S 504

Patent

active

046546642

ABSTRACT:
Described herein is a system providing an electronic null-seeking goniometer for use in automatic direction finding equipment. A microprocessor is used to generate sine and cosine information in response to the detected phase of the bearing signal. The microprocessor iteratively locates the transmitter in the null of the cardioid response pattern of the loop and sense antennas, without rotating either the loop and sense antenna set or the goniometer. This eliminates the requirement for moving antenna and goniometer components and is constructed entirely devoid of any rotating machinery. A loop feedback signal functionally related to the detected null angle provides a stable null location method, without audio distortion, at relatively high feedback/signal ratios.

REFERENCES:
patent: 2744246 (1956-05-01), Granqvist
patent: 4368470 (1983-01-01), Mori et al.
patent: 4507663 (1985-03-01), Mori et al.

Affiliated with

Also associated with

Rating

Electronic null-seeking goniometer for ADF does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic null-seeking goniometer for ADF, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic null-seeking goniometer for ADF will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2215898