TAG: L1

Septentrio PolaRx2 Receiver Orbits Earth on Board TET-1 Satellite

September 18, 2013By
The TET-1 Satellite has Septentrio on board.

Septentrio announced today that a PolaRx2 receiver has reached more than 330 hours of successful operation on board “Technologie-Erprobungs-Träger 1” (TET-1), the first satellite of the German On-Orbit-Verification program. The Septentrio receiver is the backbone of the Navigation and Occultation Experiment (NOX) developed by German Aerospace Center (DLR). The purpose of the experiment is to prove the suitability of commercial-off-the-shelf... read more

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A New Standard for L1/L2 GPS Static Receivers?

June 13, 2013By
X90_Wellsvilles

In the more than 100+ articles I’ve written for GPS World magazine over the past seven years, I don’t think I’ve ever written about a new product introduction like you will see below. I tend to focus on GNSS and geospatial technologies rather than a brand-specific products and services. In fact, last week I had an outline prepared for my... read more

This article is tagged with , , and posted in Opinions, Survey

Innovation: Evil Waveforms

May 1, 2013By
Innov-evilwave-O2

Generating Distorted GNSS Signals Using a Signal Simulator
In this month’s column, our authors discuss a set of GPS and Galileo evil-waveform experiments they have carried out with an advanced GNSS RF signal simulator. Their results will help to benchmark the effects of distorted signals and perhaps lead to improvements in GNSS signal integrity. read more

JAVAD Asserts Filters Protect GPS L1, L2, L5; GLONASS L1, L2; Galileo L1, L5

September 14, 2012By

Javad Ashjaee, founder and CEO of JAVAD GNSS, has filed a letter with the U.S. Federal Communications Commission (FCC) concerning his company’s development of technical possibilities in GNSS filter designs and components. He states “I hope this will be helpful in establishing realistic guidelines for the characteristics of high-precision GNSS receivers that will be used in critical applications.” Below is... read more

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Thales Avionics Tracks L1 Signal of First Galileo Satellite

December 12, 2011By

Following the recent launch of two Galileo satellites, Thales Aviation of Valence, France, has successfully acquired and tracked the new L1 Open Service signal transmitted by one of them (PRN 11) with a new Galileo high-end receiver made by the company. read more

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The System: An L5 Surprise

August 1, 2010By

Researchers at the German Aerospace Center say they have found a small variance in the L5 signal on IIF-1. The signal variation results in no more than a 5-centimeter error with a predictable periodicity of about six hours. The GPS Wing is studying the issue and expects to resolve it before setting the satellite healthy, in another month or so according to the schedule. read more

This article is tagged with , , , , and posted in GPS modernization, The System

New GPS Satellite’s Problems Indicated

May 4, 2009By

The U.S. Air Force spoke briefly for the first time in public regarding signal anomalies from the IIR(M)-20 satellite launched in March. read more

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