Mapping can be done with GPS and laser rangefinder directly in the field ( for example by Field-Map technology ).

Advances in technology and new demands on the existing system have now led to efforts to modernize the GPS system and implement the next generation of GPS III satellites and Next Generation Operational Control System ( OCX ).

In 1967, the U. S. Navy developed the Timation satellite that proved the ability to place accurate clocks in space, a technology required by GPS.

Decades later during the early years of GPS, civilian surveying became one of the first fields to make use of the new technology, because they could reap benefits of signals from the less-than-complete GPS constellation years before it was declared operational.

* Research from the University of Southern California reports that in 2007, humankind successfully sent 1. 9 zettabytes of information through broadcast technology such as televisions and GPS.

The U. S. Coast Guard maintains a base on St. Paul, but no longer maintains a LORAN-C master station, as the technology has been replaced by GPS navigation.

Using Global Positioning System ( GPS ) technology as a reference, these antennas automatically re-aim to the satellite no matter where or how the vehicle ( on which the antenna is mounted ) is situated.

Some modern designs even go as far as using GPS technology or heart-rate monitoring capabilities.

Example of modern equipment for surveying ( Field-Map technology ): GPS, laser rangefinder and field computer allows surveying as well as cartography ( creation of map in real-time ) and field data collection.

Modern surveys generally use magnetometers with GPS technology to automatically record the magnetic field and their location.

* William Gibson's novel Spook Country coined the term " Geohacking ", where artists use a mix of GPS and 3D graphics technology to embed rendered meshes in real world landscapes.

More recent technology such as GPS and cellular networks have permitted courts to order more specific restrictions, such as permitting a registered child sex offender to leave his home at any time of day, but alerting authorities if they come within 100 metres of a school, park, or playground.

Dead reckoning is today implemented in some high-end automotive navigation systems in order to overcome the limitations of GPS / GNSS technology alone.

It is usually used to reduce the need for sensing technology, such as ultrasonic sensors, GPS, or placement of some linear and rotary encoders, in an autonomous robot, thus greatly reducing cost and complexity at the expense of performance and repeatability.

Although GPS ( Global Positioning System ) technology is reliable, offshore yachtsmen use celestial navigation as either a primary navigational tool or as a backup.

One technology used to allow GPS receivers to continue to operate in the presence of some confusing signals is Receiver Autonomous Integrity Monitoring ( RAIM ).

Other examples of wireless technology include GPS units, garage door openers, wireless computer mice, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones.

In fact bar-headed geese have never been directly tracked ( using GPS or satellite logging technology ) flying higher than, and it is now believed that they do take the high passes through the mountains.

With the use of modern GPS technology, it can now be proved that the Salar de Uyuni is not perfectly flat.

His fortune resulted from selling an iPhone application called the " iToilet ", which utilizes GPS technology to direct the user to " acceptable " public restrooms closest to them, wherever they are.

The SPOT Messenger is manufactured by Globalstar partner Axonn LLC and combines the company's simplex data technology with a Nemerix GPS chipset.

The use of hand held GPS technology and aerial and satellite images for reconnaissance during exploration became common.

Currently, technology allows a driver to issue voice commands on both a portable GPS like a TomTom and a car manufacturer navigation system.

Information is collected with handheld computers equipped with GPS receivers and digitized maps.

* One of the early applications for code division multiplexing is in GPS.

With the field rugged computers, GPS and laser rangefinders, it is possible to perform mapping directly in the terrain.

The Bus Arrival Information Service is being rolled out which provides bus stops with information on the distance of buses based on GPS positions of the buses.

Raymond is currently the admin of the project page for gpsd, a daemon that makes GPS data from a receiver available in JSON format.

The Global Positioning System ( GPS ) is a space-based satellite navigation system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites.

It is maintained by the United States government and is freely accessible to anyone with a GPS receiver.

In addition, GPS is the backbone for modernizing the global air traffic system.

The design of GPS is based partly on similar ground-based radio-navigation systems, such as LORAN and the Decca Navigator developed in the early 1940s, and used during World War II.

This deterrent effect is why GPS was funded.

The program is being implemented through a series of satellite acquisitions, including GPS Block III and the Next Generation Operational Control System ( OCX ).

GPS is owned and operated by the United States Government as a national resource.

Department of Defense ( DoD ) is the steward of GPS.

The DoD is required by law to " maintain a Standard Positioning Service ( as defined in the federal radio navigation plan and the standard positioning service signal specification ) that will be available on a continuous, worldwide basis ," and " develop measures to prevent hostile use of GPS and its augmentations without unduly disrupting or degrading civilian uses.

Gravitational time dilation in the Earth's gravitational field has been measured numerous times using atomic clocks, while ongoing validation is provided as a side effect of the operation of the Global Positioning System ( GPS ).

Geocaching is an outdoor recreational activity in which the participants use a Global Positioning System ( GPS ) receiver or mobile device and other navigational techniques to hide and seek containers, called " geocaches " or " caches ", anywhere in the world.

Geodashing is an outdoor sport in which teams of players use GPS receivers to find and visit randomly-selected " dashpoints " ( also called " waypoints ") around the world and report what they find.

It is only because GPS satellites orbit about the geocentre, that this point becomes naturally the origin of a coordinate system defined by satellite geodetic means, as the satellite positions in space are themselves computed in such a system.

A global polyhedron of permanently operating GPS stations under the auspices of the IERS is used to define a single global, geocentric reference frame which serves as the " zero order " global reference to which national measurements are attached.

For surveying mappings, frequently Real Time Kinematic GPS is employed, tying in the unknown points with known terrestrial points close by in real time.

One of the aims of Galileo is to provide a high-precision positioning system upon which European nations can rely, independently from the Russian GLONASS, US GPS, and Chinese Compass systems, which can be disabled in times of war or conflict.