Julius V Difranco

US Patent:

40191826, Apr 19, 1977

Filed:

Mar 14, 1973

Appl. No.:

5/342906

Inventors:

Joseph DeLorenzo - Sudbury MA
Julius V. DiFranco - Dix Hills NY
Frank J. Scire - Huntington Staton NY

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01S 734

US Classification:

343 7A

Abstract:

Input videos from a multiple beam radar system are processed beam by beam first threshold devices which are weighted in accordance with signals from all the beams, and then the signal has to pass one of two further threshold devices before being processed as a target indication. One of the additional threshold devices is biased by all adjacent beams of the beam being processed; and the other threshold device is biased by weighted factors of the adjacent beams. The weight being dependent upon whether the beam is a near adjacent beam or a diagonally adjacent beam.

US Patent:

42246180, Sep 23, 1980

Filed:

Dec 11, 1978

Appl. No.:

5/968243

Inventors:

Lewis C. Rich - Jamaica NY
Julius V. DiFranco - Dix Hills NY
Robert J. Timms - Glen Head NY

Assignee:

Sperry Corporation - New York NY

International Classification:

G01S 720

US Classification:

343 5EM

Abstract:

A radar system is disclosed which provides comprehensive radar elevation surveillance with a multiplicity of antennas, each of which supplies a fraction of the total elevation coverage. Each antenna provides a relatively narrow elevation radiation pattern which illuminates adjacent elevation sectors. The video derived from received radar echoes by all the antennas are sector identified and displayed on a single radar presentation.