Ning Wang Lu

US Patent:

7944389, May 17, 2011

Filed:

Jul 9, 2009

Appl. No.:

12/500256

Inventors:

Ning H. Lu - Parsippany NJ, US
Peter D. Steensma - Green Pond NJ, US

Assignee:

ITT Manufacturing Enterprises, Inc. - Wilmington DE

International Classification:

G01S 7/36

US Classification:

342 13, 342 42, 342190, 342191, 702 5, 702127

Abstract:

Systems and methods for monitoring and classifying RF emissions in the field include storing an electronic signature map (ESM) of a selected geographic area, where the electronic signature map includes previously detected emitter closeness measures (ECMs) in the selected geographic area. The ECMs are representative of detected sources of radio frequency energy. A RF energy emission is detected, a new ECM for that RF energy emission is created, and that the new ECM is compared with the ECMs in the ESM. That comparison may help to determine whether the RF energy emission should be considered a threat.

US Patent:

8615190, Dec 24, 2013

Filed:

May 31, 2011

Appl. No.:

13/149277

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

Exelis Inc. - McLean VA

International Classification:

H04K 3/00

US Classification:

455 1, 4554561, 455513, 4551153, 4554042, 455456, 342 14, 342 16, 342 17

Abstract:

According to an embodiment of the present invention jamming energy is allocated to a plurality of emitters based on a three-dimensional (3-D) emitter geolocation technique that determines the geolocation of radio frequency (RF) emitters based on energy or received signal strength (RSS) and/or time differences of arrival (TDOAs) of transmitted signals. The three-dimensional (3-D) emitter geolocations are used to rank emitters of interest according to distance and available radio frequency (RF) jamming energy is allocated to the emitters in rank order. The techniques may be employed with small unmanned air vehicles (UAV), and obtains efficient use of jamming energy when applied to radio frequency (RF) emitters of interest.

US Patent:

20120235864, Sep 20, 2012

Filed:

Mar 16, 2011

Appl. No.:

13/049443

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

G01S 5/02

US Classification:

342451

Abstract:

According to an embodiment of the present invention, a three-dimensional (3-D) energy-based emitter geolocation technique determines the geolocation of a radio frequency (RF) emitter based on energy or received signal strength (RSS) of transmitted signals. The technique may be employed with small unmanned air vehicles (UAV), and obtains reliable geolocation estimates of radio frequency (RF) emitters of interest.

US Patent:

20120293371, Nov 22, 2012

Filed:

May 19, 2011

Appl. No.:

13/111379

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

G01S 1/24

US Classification:

342387

Abstract:

According to an embodiment of the present invention, geolocations of multiple unknown radio frequency (RF) signal sources are determined using three-dimensional (3-D) geolocation techniques. The three-dimensional (3-D) geolocation techniques obtain reliable geolocation estimates of radio frequency (RF) emitters based on energy or received signal strength (RSS) of emitter transmitted signals and based on their time differences of arrival (TDOAs) at various sensor locations. The energy based geolocations and the time difference of arrival (TDOA) geolocations are combined to determine an overall set of geolocations for multiple unknown radio frequency (RF) signal sources. The geolocation information is used to track and monitor the locations of the multiple emitters.

US Patent:

20130027251, Jan 31, 2013

Filed:

Jul 27, 2011

Appl. No.:

13/191696

Inventors:

Ning Hsing Lu - Clifton NJ, US
Chi Chiu Chan - Wayne NJ, US
Qun Shi - Plainsboro NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

G01S 5/02

US Classification:

342451

Abstract:

According to an embodiment of the present invention an emitter geolocation technique determines the geolocation of a radio frequency (RF) emitter using pair-wise line-of-bearing intersections that are derived from signal-to-noise ratios of transmitted signals received at a sensor. The technique may be employed with ground based vehicle or small unmanned air vehicles (UAV), and obtains reliable geolocation estimates of radio frequency (RF) emitters of interest.

US Patent:

20130070814, Mar 21, 2013

Filed:

Sep 15, 2011

Appl. No.:

13/233445

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

H04B 1/38

US Classification:

375219

Abstract:

Enhanced reception in a communication system is achieved by applying a time domain generated time-reversed channel response to signals transmitted from a group of transmitter to a group of receivers. The time-reversed channel response is generated from a radio frequency channel response derived from signals previously received from the group of receivers, but reversed in the time domain. The time-reversed channel response is convolved with an information signal that when transmitted in a coordinated fashion from the group of transmitters, the signals arrive at each receiver in the group of distant receiving communication devices at approximately the same time where the signals coherently combine, thereby increasing signal power at the receivers. This permits detection at a greater range or with a lower bit error rate. In addition, the many-to-many configuration enables signal power from each transmitter to be focused temporarily and spatially on each receiver.

US Patent:

20130121948, May 16, 2013

Filed:

Nov 16, 2011

Appl. No.:

13/297926

Inventors:

Anne Dussaud - Tarrytown NY, US
Ning Lu - Chappaqua NY, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

A61K 8/90
C08L 53/00
C08L 79/02
C08L 91/00
C08K 5/01
A61K 8/898
C08L 63/00
C09D 153/00
C09D 183/08
C09D 179/02
C10M 119/24
C08L 83/08
C08K 5/101

US Classification:

424 70122, 525102, 525 92 A, 525 55, 524313, 524318, 523463, 523425, 508204

Abstract:

There is provided herein a composition comprising the non-covalent bonded reaction product of a hydrophilic polymer containing an acid functional group and a hydrophobic polymer which contains an amine group bound directly to the hydrophobic polymer backbone; and, optionally a diluent, as well as a process of making such a composition.

US Patent:

20130182748, Jul 18, 2013

Filed:

Jan 13, 2012

Appl. No.:

13/349955

Inventors:

Qun Shi - Plainsboro NJ, US
Jonathan E. Rose - Fort Wayne IN, US
Ning Hsing Lu - Clifton NJ, US

Assignee:

EXELIS INC. - McLean VA

International Classification:

H04B 1/709
H04B 1/707

US Classification:

375150, 375E01002

Abstract:

Enhanced reception in a communication system is achieved by performing radio synchronization (SYNC) detection after multipath signal components are combined via a Rake combiner. In a communication system comprising a transmitter and a receiver, plural multipath signal components of a signal transmitted by the transmitter are received by the receiver. The plural multipath signal components are correlated with a known spreading code (e.g. a PN code). The correlated multipath signals are analyzed to identify plural correlation peaks and those correlation peaks that exceed a multipath threshold are selected. The selected correlation peaks are combined (i.e., coherently combined) to produce a combined signal. A synchronization event is declared when the combined signal exceeds an adjusted synchronization threshold and the combined signal is then decoded.