John Doolin Gorman

US Patent:

6967612, Nov 22, 2005

Filed:

Oct 22, 2004

Appl. No.:

10/970465

Inventors:

John D. Gorman - Falls Church VA, US
Robert J. Douglass - Oak Hill VA, US

International Classification:

G01S013/88
G01S013/04
G01S013/66
G01S013/86

US Classification:

342 22, 342 27, 342 52, 342 53, 342 54, 342 55, 342 58, 342 89, 342 90, 342 91, 342 93, 342175, 342176, 342179, 342188, 342189, 342195, 342 59

Abstract:

The system and method for standoff detection of human carried explosives (HCE) is a portable system that automatically detects HCE up to a range of 200 meters and within seconds alerts an operator to HCE threats. The system has radar only, or both radar and video sensors, a multi-sensor processor, an operator console, handheld displays, and a wideband wireless communications link. The processor receives radar and video feeds and automatically tracks and detects all humans in the field of view. Track data continuously cues the narrow beam radar to a subject of interest, the radar repeatedly interrogating cued objects, producing a multi-polarity radar range profile for each interrogation event. Range profiles and associated features are automatically fused over time until sufficient evidence is accrued to support a threat/non-threat declaration hypothesis. Once a determination is made, the system alerts operators through a handheld display and mitigates the threat if desired.

US Patent:

7304603, Dec 4, 2007

Filed:

Feb 17, 2006

Appl. No.:

11/356997

Inventors:

John C. Reed - Centreville VA, US
John D. Gorman - Falls Church VA, US

Assignee:

Science, Engineering and Technology Associates Corporation - Arlington VA

International Classification:

G01S 13/02
G01S 13/56

US Classification:

342188, 342 22, 342 27, 342160

Abstract:

A linear FM pulse radar with Doppler processing of co-polarized and cross-polarized radar return signals isolates the target echo signal content associated with a moving pedestrian to provide high quality target echo data for standoff HCE detection based on polarimetric signature analysis. Baseband co-polarized and cross-polarized radar return signals are repeatedly and coherently integrated across numerous successive radar return pulses to create co-polarized and cross-polarized range vs. velocity (Doppler) data maps. The co-polarized data map is used to identify a moving pedestrian, and co-polarized and cross-polarized data subsets corresponding to the identified pedestrian are extracted and subjected to polarization signature analysis to determine if the pedestrian is bearing explosive devices. Low pass filtering of the of the baseband co-polarized and cross-polarized radar return signals prior to integration provides range aliasing to reject signal content associated with objects beyond the unambiguous range of the radar apparatus.

US Patent:

7800527, Sep 21, 2010

Filed:

Oct 11, 2005

Appl. No.:

11/665929

Inventors:

Robert J. Douglass - Arlington VA, US
John D. Gorman - Arlington VA, US
Thomas J. Burns - Arlington VA, US

International Classification:

G01S 13/88
G01S 13/04
G01S 13/66
G01S 13/86

US Classification:

342 22, 342 27, 342 52, 342 53, 342 54, 342 55, 342 58, 342 89, 342 90, 342 91, 342 93, 342175, 342176, 342179, 342188, 342189, 342195, 342 59

Abstract:

The system and method for standoff detection of human carried explosives (HCE) automatically detects HCE () up to a range of () meters and within seconds alerts an operator to HCE () threats. The system () has radar only, or both radar and video sensors, a multi-sensor processor (), an operator console (), handheld displays (), and a wideband wireless communications link. The processor () receives radar and video feeds and automatically tracks and detects all humans () in the field of view. Track data continuously cues the narrow beam radar () to a subject of interest (), () the radar (), () repeatedly interrogating cued objects (), (), producing a multi-polarity radar range profile for each interrogation event. Range profiles and associated features are automatically fused over time until sufficient evidence is accrued to support a threat/non-threat declaration hypothesis. Once a determination is made, the system () alerts operators through a handheld display () and mitigates the threat if desired.