Design & Test

Directions 2013: Dealing with Interference

December 1, 2012By

In my vision of the future of GNSS, I see a pressing need to manage radio-frequency spectrum more efficiently. This will drive the creation of official standards for GNSS receivers, and better design of those receivers with better filters at lower cost, to protect against out-of-band and near-band interference. This in turn will enable user to undertake widespread monitoring and reporting of in-band interference, and create the freedom for many technologies to explore wider and more productive use of all bands of the radio-frequency spectrum. read more

This article is tagged with , , and posted in Design & Test, From the Magazine

Retired GIOVE-A Helps SSTL Demo High-Altitude GPS Fix

November 30, 2012By
Galileo's GIOVE-A retired in June 2012

An experimental GPS receiver, built by Surrey Satellite Technology Limited (SSTL), has successfully achieved a GPS position fix at 23,300 kilometers altitude – the first position fix above the GPS constellation on a civilian satellite. The SGR-GEO receiver is collecting data that could help SSTL to develop a receiver to navigate spacecraft in geostationary orbit (GEO) or even in deep... read more

Good News and Plenty of It

November 2, 2012By
GPS IIF

Firing on all cylinders — to use a slightly outmoded technological metaphor — GNSS moved forward on virtually every front in the past month. GPS made major advances both on the ground and in space, Galileo took a giant step, Compass continued on its roll, GLONASS has good news pending in only a day or two (knock on wood), and... read more

This article is tagged with and posted in Design & Test, GNSS, Opinions

What Is Achievable with the Current Compass Constellation?

November 1, 2012By
001_GPS_November12_web

Data from a tracking network with 12 stations in China, the Pacific region, Europe, and Africa demonstrates the capacity of Compass with a constellation comprising four geostationary Earth-orbit (GEO) satellites and five inclined geosynchronous orbit (IGSO) satellites in operation. The regional system will be completed around the end of 2012 with a constellation of five GEOs, five IGSOs, and four... read more

Innovation: Getting Along

November 1, 2012By
Thumb

Collaborative Navigation in Transitional Environments
In this month’s article, a team of researchers at The Ohio State University discusses a system under development for collaborative navigation in transitional environments — environments in which GPS alone is insufficient for continuous and accurate navigation. Their prototype system involves a land-based deployment vehicle and a human operator carrying a personal navigator sensor assembly, which initially navigate together before the personal navigator transitions to an indoor environment. This system will have multiple applications including helping first responders to emergencies. Read on. read more

This article is tagged with and posted in Design & Test, From the Magazine, Innovation

Winning Experts to Discuss GNSS in November Webinar

October 31, 2012By

The winners of GPS World’s 2012 Leadership Awards will be featured in November webinar “The Future of GNSS Research & Development.” The webinar will be held Thursday, November 15, at 10 a.m. PDT / 1 p.m. ET / 5 p.m. GMT. Registration is free. The winners are expected to discuss with moderator and editor-in-chief Alan Cameron their significant recent achievement... read more

This article is tagged with and posted in Design & Test, GNSS

Topcon Unveils B110 GNSS Receiver Board

October 15, 2012By
B110_Topcon

Topcon Positioning Systems announces the light, ultra-compact dual-frequency positioning engine, the B110 GNSS receiver board. The B110 is the first GNSS board with Topcon’s new Vanguard ASIC, supporting 226 universal channels for GPS, GLONASS and Galileo tracking and scalable positioning from sub-meter DGPS to sub-centimeter RTK. The B110 board’s small size, low power consumption and flexible communication interfaces make it... read more

This article is tagged with , , and posted in Design & Test, Latest News

JAVAD Tracks L5 Signals from Indian GAGAN Satellite

October 4, 2012By
1

JAVAD GNSS has commented on some news that its receivers can track a new L5 signal from the Indian SBAS satellite, GSAT-8, launched on May 20.  In a further explanation to GPS World, CEO Javad Ashjaee explained, “All owners of our products can track it. The only thing is that if customers have not updated their firmware for a long time,... read more

This article is tagged with , , , , and posted in Design & Test, GNSS