Auto correlation technique for -co-ordinate registration

Details Auto correlation technique for -co-ordinate registration Auto correlation technique for -co-ordinate registration

1992-06-26

1995-08-08

Hellner, Mark

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

With particular circuit

For correlation

342108, 342145, G01S 1304

Patent

active

054403120

ABSTRACT:
A method of co-ordinate registration for Over-the-Horizon Radar comprising he steps of generating a geographic auto correlation function to determine one or more geographic beacons in a coverage area of the Over-the-Horizon Radar, the auto correlation function being in polar co-ordinates, comparing the return radar signal with the geographical map of the coverage area in the general region of the one or more geographic beacons and finding the best fit of the geographic map with return radar signal to enable registration of co-ordinates of the return radar signal. The auto correlation function indicates the amount of correlation between a neighbourhood and a slight displacement from that neighbourhood. A geographic beacon is an area in which there is a substantial difference between the neighbourhood and its surroundings thereby producing a low auto correlation function.

REFERENCES:
patent: Re31509 (1984-01-01), Neidell
patent: 3157874 (1964-11-01), Altar et al.
patent: 4347511 (1982-08-01), Hofmann et al.
patent: 4489322 (1984-12-01), Zulch et al.
patent: 4602336 (1986-07-01), Brown
patent: 4899161 (1990-02-01), Morin, Jr. et al.
patent: 4994809 (1991-02-01), Yung et al.

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