Signal Processing

Loctronix IDS Captures Real-World GPS Jamming Interference

October 14, 2014By

A newly published white paper by Loctronix Corporation presents preliminary test results of its Interference Detection System (IDS), which included capturing two separate incidents of intentional interference caused by a sweep jammer device. On October 23, Loctronix will host a webinar, “Detecting GNSS Interference in the Wild,” based on the findings revealed in the white paper “Catching a Jammer.” In recent... read more

Toward a Unified PNT — Part 1

October 2, 2014By
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Complexity and Context: Key Challenges of Multisensor Positioning
The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments. No single navigation technology is robust enough, so a multisensor solution is required. read more

Innovation: Scintillating Statistics

October 2, 2014By
FIGURE 2. Current multi-GNSS data collection system configuration at Jicamarca Radio Observatory in Peru. (GLO = GLONASS, BDS = BeiDou System, VPN = virtual private network, ISMET = ionospheric scintillation monitoring event triggering, RAID = redundant array of independent disks)

A Look at High-Latitude and Equatorial Ionospheric Disturbances of GPS Signals
In an effort to help improve the monitoring, mapping, and modeling of scintillations, a team of researchers led by Prof. Jade Morton is monitoring high-latitude and equatorial scintillations and they discuss some of their preliminary results in this month’s column. read more

Canadian Science Minister Announces Grant to Langley’s UNB Lab

August 26, 2014By
Professor Langley (center) discusses the UNB geodesy program with Canadian Science Minister Ed Holder (second from left.)

The Canadian Minister of State for science and technology, Ed Holder, visited the University of New Brunswick on July 28 to announce the awarding by the Natural Sciences and Engineering Council of $2.4 million to 28 UNB researchers. He was joined by Keith Ashfield, member of Parliament for Fredericton, where UNB is based, and Craig Leonard, the New Brunswick Minister... read more

Spoofer and Detector: Battle of the Titans at Sea

August 5, 2014By
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Two satnav superpowers battled it out aboard a superyacht in the Mediterranean this summer, as a spoofing detector designed to differentiate between real and fake GPS signals came to grips with a spoofing device previously responsible for hijacking a sophisticated drone helicopter, deceiving it into landing when it was trying to hover, and for misdirecting the same luxury yacht in... read more

This article is tagged with and posted in Featured Stories, GNSS News, Marine, Signal Processing, Transportation News, Uncategorized

M3 Systems Announces Simulator Based on Vector Signal Transceiver

June 20, 2014By
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M3 Systems is now offering the StellaNGC multi-constellation GNSS simulator based on the National Instruments (NI) vector signal transceiver. The simulator is designed for the testing of satellite navigation receivers for GPS, GLONASS, Galileo, and EGNOS/WAAS. It is designed to improve performance, scalability, and versatility, and reduce cost over existing navigation test solutions. GNSS is the predominant technology today for... read more

Innovation: The European Way

June 1, 2014By
FIGURE 1. Global vTEC map obtained with the NeQuick electron density model for a sunspot number of 150 at 13h UT in the month of April (grid resolution 2.5 degrees × 2.5 degrees).

Performance of the Galileo Single-Frequency Ionospheric Correction During In-Orbit Validation
In this month’s column, a team of researchers from ESTEC describe the European way for modeling the ionosphere for single-frequency users and compare its performance to the current GPS approach. read more

This article is tagged with and posted in From the Magazine, Innovation, Signal Processing

Spirent Launches SimSAFE to Address GNSS Signal Vulnerability

February 11, 2014By
simSafe_Spirent

Spirent Communications, a testing navigation and positioning systems company, today announced the introduction of Spirent SimSAFE, a software solution that concurrently simulates legitimate Global Navigation Satellite System (GNSS) constellations and spoofed or hoax signals to evaluate receiver resilience and help develop counter measures. SimSAFE was developed in conjunction with Qascom, GNSS signal security and authentication experts. As GNSS become increasingly... read more

This article is tagged with , , and posted in GNSS News, Latest News, Signal Processing