Amedeo Larussi

US Patent:

6624792, Sep 23, 2003

Filed:

May 16, 2002

Appl. No.:

10/150175

Inventors:

Tai-Tseng Chu - Simi Valley CA
Amedeo Larussi - Oxnard CA

Assignee:

Titan Systems, Corporation - San Diego CA

International Classification:

H01Q 1300

US Classification:

343786, 343772, 333 21 A, 333136, 333137

Abstract:

The invention utilizes two nominally orthogonal probes to couple selectively to two orthogonal modes propagating in a microwave waveguide and horn. The waveguide and horn utilize internal ridges to obtain broad bandwidth and the two probes are located in substantially the same plane in order to avoid introducing large changes in the relative phases of the two modes propagating within the waveguide with changes in frequency over the operating bandwidth of the device. The middle portion of each probe is bent or deformed to the extent needed to avoid physical conflict and electrical contact between the probes, while still avoiding the introduction of substantial phases differences between the modes excited by the respective probes.

US Patent:

20180113194, Apr 26, 2018

Filed:

Jun 9, 2015

Appl. No.:

14/734844

Inventors:

- Waltham MA, US
Amedeo Larussi - Oxnard CA, US
Kim Mcinturff - Santa Barbara CA, US

Assignee:

RAYTHEON COMPANY - Waltham MA

International Classification:

G01S 7/40
G06N 99/00

Abstract:

Systems and methods are disclosed herein which facilitate generating and utilizing look-up tables for determining an AoA of a radar signal received from an emitter. In example embodiments, the systems and methods may involve a selectivity process for selecting, for each of a plurality of installation positions, an installation-representative antenna pattern as selected from an option set. Thus, the selectivity process may, for example, include indexing a plurality of data sets of antenna patterns associated with an antenna position and selecting a most representative data set from at least one of the indexed data sets. In some embodiments, the system and methods may further apply a compression algorithm which identifies changes in slope with respect to adjacent pairs of antenna positions (vertex pairs) in the look-up table. The algorithm may then discard any antenna position (any vertex) that does not meet a slope difference threshold with respect to changes in the slope.

US Patent:

20150035696, Feb 5, 2015

Filed:

Aug 2, 2013

Appl. No.:

13/958240

Inventors:

- Waltham MA, US
Amedeo Larussi - Oxnard CA, US
Kim McInturff - Santa Barbara CA, US

Assignee:

RAYTHEON COMPANY - Waltham MA

International Classification:

G01S 3/14

US Classification:

342147

Abstract:

Characterizing a radiation pattern of an antenna, accurately, is needed to improve the determination of an angle arrival of a radar signal received by the antenna. Accordingly, an optimized monotonic fitting approach with corresponding method and system are provided. The approach represents an approximation of the radiation pattern as a window map having a plurality of windows. The approach finds an optimized monotonic fit of the radiation pattern by adjusting the window map, one window at a time, and testing the resulting new approximations. The approach tests whether a new approximation is a better fit then the other approximations, is monotonic, and has a minimum slope. The approach enforces monotonicity and a minimum slope for ambiguity resolution. The approach further includes calculating an angle arrival of the radar signal based on the optimized monotonic fit.