Sokkia Cable-Free GPS

Sokkia (KS, USA) has released the GSR2700 IS Fully Integrated L1/L2 System, featuring Bluetooth wireless technology for completely cable-free surveying. The system has been developed in collaboration with POINT, Inc. (KS, USA) and NovAtel, Inc. (Canada). The survey-grade, dual-frequency GPS receiver, integrated data link, Bluetooth wireless technology, antenna, memory and batteries are all enclosed in a compact, rugged magnesium alloy housing, providing protection in the harshest of environments (IP67 rating). This all-on-the-pole receiver is designed to aid surveyors in a variety of field applications, with internal memory for 500 hours of data collection, along with options for an internal UHF... (read more)
2005-04-20 12:00:00

Modernized GPS Satellite Launched

The fourth US Air Force modernized Global Positioning System Block IIR (GPS IIR-M) satellite was launched successfully from Cape Canaveral Air Force Station aboard a United Launch Alliance (ULA) Delta II launch vehicle. Designated GPS IIR-17M, the satellite is the fourth in a series of eight Block IIR-M spacecraft that Lockheed Martin Navigation Systems has modernised for its customer, the Global Positioning Systems Wing, Space and Missile Systems Center, Los Angeles Air Force Base,CA, USA. The Block IIR-M series includes new features that enhance operations and navigation signal performance for military and civilian GPS users around the globe.   Each... (read more)
2007-10-18 09:51:56

Navman GPS3260 Released

Navman (CA, USA) has released the Navman GPS3260 series Smart GPS Sensor, a sensitive GPS receiver and antenna device to provide location based capabilities to a variety of mobile applications from PDAs to commercial vehicles. A fully integrated GPS antenna and receiver, the Smart GPS Sensor features a 49.0 x 41.0 x 14.2mm form factor and includes an ultra-high sensitivity 20-channel receiver, as well as over 200,000 effective correlators for rapid satellite acquisition fixes and tracking even in weak signal conditions less than -159 dBm. The device provides fast acquisition fixes with less than 1 second hot starts, 32 second... (read more)
2007-01-23 04:03:54

GPS-Fitted Shoe

GTX Corp is working to develop a shoe that is outfitted with a GPS tracking system. The primaty target will be alzheimer patients, who are likely to get lost but not always like to seek for assistance. If they are lost for longer than a day, it may be dangerous.   Thus, savings in lives but also in search and rescue operations can be obtainerd. The development of the shoe is done by Aetrex. The shoe should cost about USD200-300, and a subscription to alert when a subscriber exceeds an area would cost about USD20 per month. These details still... (read more)
2009-06-15 01:43:23

Integrating GPS and SAR

Monitoring Coal-field Subsidence
Subsidence of the earth's surface caused by underground mining can be monitored using terrestrial land-survey methods. However, applying these is difficult in hilly terrain and densely forested or urbanised areas. Such difficulties can be overcome with a combination of spaceborne SAR and GPS. InSAR accuracy corresponds to GPS and lies, with 9mm variance, in less than 8% of SAR signal phase.<P> When a point on the earth's surface is subject to deformation such as subsidence, the distance, or slant range, between an orbiting SAR sensor and the point gradually changes over time. Slant range can be determined by measuring the... (read more)
2007-10-16 12:00:00

Iranian Permanent GPS Network

Using GPS to Understand Earthquakes
Lying in one of the most tectonically active zones in the Alpine-Himalayan belt, Iran frequently suffers from heavy and disastrous earthquakes. To monitor surface displacement and measure velocity and strain fields, the National Cartographic Center of Iran (NCC) has established a network of one hundred GPS stations: the Iranian Permanent GPS Network for Geodynamics (IPGN). The authors introduce the design of the new geodetic network. Iran is situated between the Eurasian plate in the north and the Arabian plate in the south, with shortening rate of 2-2.5cm per year. Many earthquakes occur in this area, causing enormous loss of life... (read more)
2006-08-23 12:00:00

From GPS to GNSS

Septentrio Satellite Navigation
These are exciting times in satellite navigation. Selective availability for GPS switch-off has fuelled use of satellite navigation technology in professional and consumer applications and new signals and systems are reshaping the industry landscape. Septentrio has from its inception embraced new possibilities in satellite navigation. It offers receivers for professional markets, while preparing users for the GNSS of tomorrow. There have been important technological advances over the past decade in chip technology, signal and digital processing, miniaturisation and portability, all supporting the development and use of GPS. And now there are new satellite navigation signals and systems on the way.... (read more)
2007-07-07 12:00:00

Leica GPS1200+ GNSS

Four independent Global Navigation Satellite Systems (GNSS) will be operational within the near future. With the new Leica GPS1200+ users can be certain that they are ready. The Leica GPS1200+ supports the new GPS L5 signal, GLONASS L1 and L2, and will also be able to track Galileo and Compass satellites when available. The flexible design of Leica GPS1200+ is 100% future proof and is already now compatible with the four global navigation satellite systems.     GPS L5 is the new third GPS frequency which will allow increased redundancy, faster signal acquisition, and improved multipath performance - ultimately resulting... (read more)
2008-12-29 03:15:46

New GPS Satellite Operational

The fourth in a series of eight modernized Global Positioning System (GPS) satellites that will deliver new capabilities to military and civilian users has been declared fully operational. Launched from Cape Canaveral October 17, the satellite was given the all clear after an on-orbit checkout by a combined U.S. Air Force/Lockheed Martin team. Read more   The satellite joins three IIR-M satellites and 12 other operational Block IIR satellites within the current 28-spacecraft constellation. The fifth GPS IIR-M satellite is scheduled for launch on 20th December 20, 2007 from Cape Canaveral.   (read more)
2007-11-06 01:55:21

Supervisor+ GPS Tablet Computer

The SuperG, the Carlson Supervisor+ GPS Tablet, has been introduced. Carlson's Supervisor tablet computer, a rugged tablet PC that can be used anywhere, has been upgraded to include an integrated high-precision GNSS receiver and to provide wireless support for Bluetooth, 802.11, GSM, GPRS and CDMA.       The Carlson Supervisor is designed to work on more total stations, robots, GPS systems than any other solution. Both the Carlson Supervisor tablet and the new SuperG offer the industry's largest data collector screen, seven inches, that is sunlight viewable. They also supply the industry's fastest data collector processor with 64Gb of... (read more)
2012-01-25 02:34:04
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