Electromagnetic wave direction finding using Doppler techniques

Details Electromagnetic wave direction finding using Doppler techniques Electromagnetic wave direction finding using Doppler techniques

1970-02-10

1976-11-09

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343119, G01S 302, C01S 328, G01S 346

Patent

active

039914186

ABSTRACT:
Skywave propagation of quasi-sinusoidal signal sources generally results in multiple discrete Doppler shifts which can be associated with actual ionospheric modes in existence between the transmitter and receiver terminals at the operating frequency. The invention covers the application of monopulse direction finding techniques through the isolation of energy in each Doppler shifted mode through the use of high resolution spectrum analysis. More particularly, azimuth information is obtained by using the amplitude and/or phase responses of two antennae beams preferably in a monopulse configuration for each Doppler shifted mode.

REFERENCES:
patent: 3090044 (1963-05-01), Wilmotte
patent: 3120000 (1964-01-01), Wilmotte
patent: 3482246 (1969-12-01), Cox

Affiliated with

Also associated with

Rating

Electromagnetic wave direction finding using Doppler techniques does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic wave direction finding using Doppler techniques, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic wave direction finding using Doppler techniques will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1728238