Publications

Presentations and Publications

 

NANU Analysis from 2007 through 2015“, John Lavrakas, ION GNSS+ 2016, September 15, 2016, Portland, OR

Managing GPS: Take Two”, John Lavrakas, GPS World magazine, Expert Advice, December 2014

GPS Civil Signal Monitoring – Advancing Toward Implementation”, Andrew Hansen and Karen Van Dyke, DOT/OST-R, Calvin Miles (DOT/FAA), John W. Lavrakas, ION GNSS+ 2014, September 11, 2014, Tampa, FL

“At-sea Data Collection in the Salmon Fisheries Using GPS-enabled Android”, John W. Lavrakas, Wil Black, Advanced Research Corporation, ION GNSS+ 2013, September 2013, Nashville, TN

“BeiDou: How things have changed”, John Lavrakas, GPS World magazine, Expert Advice, February 2013

At-sea Data Collection in the Salmon. Fisheries Using GPS-enabled Android. John W. Lavrakas, Wil Black, Alex Lawson (Advanced Research Corp), Annual Meeting, Organization of Fish and Wildlife Information Managers, October 16, 2012, Austin, TX

At-sea Data Collection in the Salmon. Fisheries Using GPS-enabled Android. John W. Lavrakas, Wil Black, Alex Lawson (Advanced Research Corp), Pete Lawson (NOAA), Annual Meeting, American Fisheries Society, August 20, 2012, St Paul, MN

“The Value of Geospatial Information in Fisheries”, John Lavrakas, Oregon State University Geospatial Intelligence Lecture Series, January 31, 2012, Corvallis, OR

“Identifying PNT Centers of Activity in Support of a National PNT Architecture”, John W. Lavrakas, Wil Black, Terri Lippert, ION GNSS 2011, September 2011, Portland, OR

Addressing GPS User Problems: More GPS or Smarter GPS?” Coordinates Magazine, September 2010, James L. Farrell, Vigil, Inc., Severna Park, Maryland and John W. Lavrakas, Advanced Research Corporation, Newport, Oregon, USA

“Wave Energy: A New Wave of Energy for Oregon”, John Lavrakas (Advanced Research) and Meleah Ashford (Northwest National Marine Renewable Energy Center), Oregon Community College Green Conference, May 13, 2010

“Verifying U.S. Commitments in GPS”, John Lavrakas, GPS World Magazine, TechTalk column, April 9, 2010

Wave Energy Infrastructure Assessment in Oregon“, John W. Lavrakas and Jed M. Smith, December 1, 2009, a report prepared for the Oregon Wave Energy Trust (Released March 5, 2010)

Defining Civil PNT Requirements“, John W. Lavrakas, Coordinates Magazine, February 2010

The GPS Civil Monitoring Performance Specification“, Tom Nagle, Brent Renfro, John Lavrakas, InsideGNSS Magazine, January/February 2010

Proving the Walk Matches the Talk – Verification of GPS Performance Assertions“, John W. Lavrakas, Brent Renfro, ION International Technical Meeting, January 2010, San Diego, CA

Oregon Infrastructure: The Economic Potential“, John Lavrakas and Jed Smith, Advanced Research Corporation, Oregon Wave Energy Conference, September 2009, Seaside, OR

“Expert Advice: GNSS in the Year 2017”, John W. Lavrakas, GPS World Magazine, May 2007

A Glimpse into the Future: A Look at GNSS in the Year 2017”, John W. Lavrakas, Advanced Research Corporation, ION National Technical Meeting, January 2007, San Diego, CA

Expert Advice: Managing the GPS Constellation for Today’s Needs“, John W. Lavrakas, Advanced Research Corporation, GPS World Magazine, September 2006

A Case for Updating the GPS Standard Positioning Service Performance Standard”, John W. Lavrakas, ION National Technical Meeting, January 2006, Monterey, CA

Implementing Civil Monitoring in Wake of the New Policy on GPS”, J. W. Lavrakas, ION Annual Meeting, June 2005, Cambridge, MA

Development of a Performance Specification for Monitoring the GPS Civil Service”, Tom Nagle, Brent A. Renfro, John W. Lavrakas, ION National Technical Meeting, January 2005, San Diego, CA

Assessing SATNAV Performance Using the Navigation Tool Kit“, John W. Lavrakas, Ted Driver, Rob Conley, Seth A. Hieronymus, D. Knezha, ION GNSS 2004, September 2004, Long Beach, CA

Implementation of a GPS Integrity Anomaly Database”, Lavrakas, J.W., Van Dyke, K., Carroll, B., Hieronymus, S.A. ION Annual Meeting, June 2004, Dayton, OH

Status Update of the GPS Integrity Failure Modes and Effects Analysis (IFMEA) Project”, Kovach, K., Lavrakas, J.W., Van Dyke, K., Miles, C., Phelts, E., Pullen, S., ION National Technical Meeting, January 2004, San Diego, California

“GPS for the Rest of Us: Monitoring the Civil Signals”, Lavrakas, J.W., GPS World Magazine, September 2003

GPS Integrity Failure Modes and Effects Analysis”, K. Van Dyke, Karl Kovach, J. Kraemer, J. Lavrakas, J.P. Fernow, J. Reese, N. Attallah, B. Baevitz, Proceedings ION National Technical Meeting, January 2003, Anaheim, CA

Defining the Elements of a Civil GPS Monitoring Service”, Lavrakas, J.W., Broomfield, J., ION National Technical Meeting, January 2003, Anaheim, California

Planning the Future of GPS”, J. W. Lavrakas, ION Annual Meeting, June 2002, Albuquerque, New Mexico

The Interagency Forum for Operational Requirements”, J.W. Lavrakas, ION GPS 2001, September 2001, Salt Lake City, UT

A Systems Approach to a National Position, Navigation and Timing Service”, J.W. Lavrakas, ION GPS-2001, September 2001, Salt Lake City, UT

Establishing a National PNT Service”, Lavrakas, John W., IEEE/AIAA/ION Chapter meeting, May 2001, Somers Point, NJ

GPS Status and Modernization”, Snowdon, Jack, Lavrakas, John W., Martel, John, GNSS 2001, May 2001, Seville Spain

Establishing a GPS User Support Infrastructure”, John W. Lavrakas, Ted Driver and Daniel Knezha, ION GPS 2000, September 2000, Salt Lake City, UT

The World after Selective Availability”, Rob Conley, John Lavrakas, Proceedings ION GPS 1999, September 1999

Where Should Changes be Made? Correcting the Effects of Satellite Anomalies on GPS Receivers”, John W. Lavrakas, Daniel Knezha, Shane Connary, ION Annual Meeting 1999, June 1999

GPS Receiver Responses to Satellite Anomalies, John W. Lavrakas, and Daniel Knezha, Proceedings of the ION National Technical Meeting, January 23, 1999

Insight Into GPS Asset Location“, Marshall, Glenn C. and Lavrakas, John W., GPS Solutions magazine, Spring 1996

Where is It and Where is It Going?: A Comprehensive Look at GPS Asset Location, Part III“, John W. Lavrakas and Marshall, Glenn C., GPS Solutions Magazine, Volume 1, Number 3, Winter 1996

Where is It and Where is It Going?: A Comprehensive Look at GPS Asset Location, Part II“, John W. Lavrakas and Marshall, Glenn C., GPS Solutions Magazine, Volume 1, Number 2, Autumn 1995

StarWatch™: An Off-the-Shelf Asset Location System“, John W. Lavrakas, Proceedings, Institute of Navigation, GPS-95 Meeting, September 1995, Palm Springs, CA

Where is It and Where is It Going?: A Comprehensive Look at GPS Asset Location“, Lavrakas, John W. and Marshall, Glenn C., GPS Solutions Magazine, Volume 1, Number 1, Summer 1995

Inside GPS: The Master Control Station“, Lavrakas, John W. and Shank, Chris, GPS World  Magazine, Volume 5, Number 9, pp. 46-54, September 1994

Heading for the Hills: Integrated GPS Vehicle Tracking Systems in Mountainous Areas“, John W. Lavrakas, Proceedings, Institute of Navigation, Annual Meeting, June 1994, Colorado Springs, CO

Study into the Use of URA in Satellite Selection“, Lavrakas, John W. and Shank, Chris, Proceedings, Institute of Navigation, Annual Meeting, June 1993

GPS Integrity: An MCS Perspective“, Shank, Chris and Lavrakas, John W., Proceedings, Institute of Navigation, GPS-93 Meeting, September 1993

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