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Douglas S Hulbert, 766772 Elmore St, San Diego, CA 92111

Known as:
Douglas Strong Hulbert Douglas S Hublert Doug S Hulbert
Related to:
David R Hulbert 61

Douglas Hulbert Phones & Addresses

6772 Elmore St, San Diego, CA 92111    858-8742954   

5828 Ferber St, San Diego, CA 92122    858-4556061   

San Francisco, CA   

1316 Whisper Dr, Virginia Beach, VA 23454    757-4810108   

6772 Elmore St, San Diego, CA 92111    858-9455791   

Education

Degree: Graduate or professional degree
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Resumes & CV records

Resumes

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Scientist And Mathematician

Location:
San Diego, CA
Industry:
Defense & Space
Work:
Spawar
Scientist and Mathematician San Diego City College Aug 2001 - Apr 2002
Adjunct Professor Norfolk State University Aug 1993 - Aug 2001
Professor of Mathematics Daniel H. Wagner Associates Oct 1988 - Aug 1992
Mathematician Raytheon Dec 1984 - Aug 1988
Research Scientist Hughes Aircraft Company Jan 1983 - Nov 1984
Research Scientist University of Southern California Sep 1979 - Jan 1983
Teaching Assistant
Education:
University of Southern California 1979 - 1983
Doctorates, Doctor of Philosophy, Mathematics, Philosophy Brandeis University 1974 - 1976
Masters, Master of Arts, Mathematics Episcopal Divinity School 1970 - 1972
Harvey Mudd College 1966 - 1970
Bachelors, Bachelor of Science, Mathematics
Douglas Hulbert Photo 17

Douglas Hulbert

Douglas Hulbert Photo 18

Douglas Hulbert

Publications & IP owners

Us Patents

Synthetic Aperture Radar Systems And Methods

US Patent:
7589662, Sep 15, 2009
Filed:
Jun 20, 2007
Appl. No.:
11/765557
Inventors:
Douglas S. Hulbert - San Diego CA, US
Ayax D. Ramirez - Chula Vista CA, US
Stephen D. Russell - San Diego CA, US
Mark W. Roberts - San Diego CA, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01S 13/00
US Classification:
342 25R, 342 74, 342 89, 342104, 342133
Abstract:
A method of determining a radar receiver path, comprising the steps of: obtaining a transmitter position; obtaining a target position and velocity; obtaining a radar receiver position and velocity; determining a transmitter aspect angle gradient, a transmitter aspect angle time derivative and a transmitter co-state vector time derivative; determining a target aspect angle gradient, a target aspect angle time derivative and a target co-state vector time derivative; generating a radar platform heading variable, and a group of differential variables over a defined time span; inputting the group of differential variables into a differential equation solver; receiving a group of possible headings for the radar receiver path; and finding an optimum radar receiver path from the group of possible headings.

Method For Increasing Multicast Throughput In A Single-Hop Multi-Channel Wireless Network

US Patent:
2017009, Apr 6, 2017
Filed:
Oct 6, 2015
Appl. No.:
14/876469
Inventors:
- San Diego CA, US
Douglas S. Hulbert - San Diego CA, US
International Classification:
H04W 4/06
H04W 72/12
H04L 5/14
Abstract:
A communications method comprising the following steps: establishing a single-hop, multi-channel wireless network comprising a plurality of half-duplex nodes that can simultaneously receive on multiple channels but that cannot simultaneously transmit on the multiple channels; using linear programming to establish a rapid-throughput transmission schedule for data transmissions between the half-duplex nodes; multicasting all the data transmissions in the network in multicast sessions according to the transmission schedule; using erasure coding to reconstruct data transmitted in a particular multicast session in instances where the entirety of the particular multicast session is not received at a given node because the given node was transmitting during part of the particular multicast session.

Wireless Polarization Modulation Method Using Polarization Shift Keying And Hadamard Multiplexing

US Patent:
2015034, Nov 26, 2015
Filed:
May 20, 2014
Appl. No.:
14/283096
Inventors:
- San Diego CA, US
Douglas S. Hulbert - San Diego CA, US
Assignee:
The United States of America as represented by the Secretary of the Navy - San Diego CA
International Classification:
H04J 11/00
H04B 7/06
Abstract:
A method involves modulation of polarization states at a radio network's transmit antennas and configuration of complementary polarization states at the radio network's receiving antennas such that variations in measured voltages at receivers' antennas convey digital information and provide a multiple access channel to supplement other network communications. A calibration interval may be used, during which the network receivers measure the two distinct voltages from each transmitter during separate time intervals. Each receiver keeps a separate accumulation for each transmitter wherein each received sample is weighted by +1 or −1 according to the column of a Hadamard matrix. After the sample periods and accumulations have been completed, each receiver offsets its accumulation using a normalization term. Each receiver may then decode bits received from each transmitter using the offset completed sum for each respective transmitter.

Possible Relatives

David Hulbert  Dawn I Hulbert  Deborah A Hulbert  Dan R Hulbert  Denise M Hulbert  Danny Hulbert  Darren S Hulbert  Douglas P Johnson  Douglas R Stamps  Douglas J Standish 

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