Opinions

Gordon’s Positioning System, Circa 1970

December 10, 2013By
800px-MonNatForest

One of my oldest and best friends died today – and he was just a kid, only 62. In the prime of his life, and yet I know he led a very full life and had no regrets when he passed on to that highway in the sky — somewhere where he will hopefully not have to ask directions, because neither one of us was very good at that. Indeed, in our youth, both Gordy and I were GPS-challenged long before GPS was a gleam in Dr. Parkinson’s eye. read more

This article is tagged with and posted in Defense PNT Newsletter, Newsletter Editorials

Reflecting on 2013, from Your Perspective

December 5, 2013By

As the end of the year approaches, I'd like to reflect on 2013. One of the new features of the GPS World website allows me to access webpage statistics so I can understand which articles and news items were “hot.” Following is a list of GPS World magazine's hot topics for 2013 with some commentary from me. read more

This article is tagged with and posted in Newsletter Editorials, Survey Scene

Directions 2014: Great Expectations

December 1, 2013By
Peter Large

By Peter O. Large, Vice President, Trimble November 29, 2013, marks the 210th anniversary of the birth of Christian Doppler. His work laid down the fundamental concepts that enabled researchers at Johns Hopkins University in the United States to make observations on the signals of Sputnik I during the International Geophysical Year of 1957. From those observations more than 60... read more

Directions 2014: Galileo IOV Passes with Flying Colors

December 1, 2013By

Following the second Galileo launch in October 2012, leading to four operational satellites in orbit, a progressive chain of events has taken place in 2013 encompassing all Galileo Services, starting from the first position fix on March 12 (Figure 1), when navigation message continuous broadcast began. read more

Directions 2014: Serve the World, Benefit Mankind — A System Matures

December 1, 2013By
Distribution of visible in-orbit BeiDou satellites.

By adhering to the principles of independence, openness, compatibility, and gradualness, China has steadily pushed forward the deployment of the BeiDou Navigation Satellite System (BDS), following a planned three-step strategy. In 2000, BeiDou Navigation Satellite Demonstration System was completed. By December 2012, five geostationary orbit (GEO) satellites, five inclined geosynchronous orbit (IGSO) satellites, and four medium-Earth orbit (MEO) satellites had been launched, forming the constellation, and formally beginning service provision to the Asia-Pacific region. read more

Directions 2014: New Horizons of GLONASS

December 1, 2013By

The fundamentals of Russian government policy in satellite navigation are defined in Presidential Decree #638 of May 17, 2007, and specify that GLONASS services are provided globally and free of any user fees, and GLONASS is used as a basis of the National Positioning, Navigation and Timing System. To efficiently implement the government policy in satellite navigation, in March 2012 the Government approved the dedicated Federal Program focused on GLONASS sustainment, development, and expansion of applications. read more

Directions 2014: Keeping Our Commitment to Civil Users

December 1, 2013By
Colonel William T. “Bill” Cooley.

The cliché “time flies when you’re having fun” accurately describes how quickly the past six months have passed for me. In a program as challenging, rewarding, and mission-critical as GPS, it is full-speed ahead all the time. As the GPS director, I am acutely aware of the importance of time — particularly high-accuracy time. Since declaring initial operational capability in December 1993, the extremely precise time service delivered by GPS has enabled numerous technological advances around the globe. read more