Design & Test

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, Latest News, Signal Processing

Innovation: Ionospheric Modeling Using GPS

February 1, 2014By
FIGURE 2. The network of the four stations used in the evaluation procedures.

Greater Fidelity Using a 3D Approach
In this month’s column we look at the performance of a 3D approach to modeling the ionosphere, including times when the ionosphere is particularly interesting (read disturbed). read more

This article is tagged with and posted in Algorithms & Methods, From the Magazine, Innovation

Collaborative Signal Processing

February 1, 2014By
Soloviev-O

More Receiver Nodes Bring Ubiquitous Navigation Closer
Encouraging results from new indoor tests and advances in collaborative phased arrays come from MUSTER: multiple independently operating GPS receivers that exchange their signal and measurement data to enhance GNSS navigation in degraded signal environments, such as urban canyons and indoors. read more

Spirent Federal Offers Training Conference in March

January 24, 2014By

GNSS simulation expert Spirent Federal is inviting users to “a rigorous and thorough” one-and-a-half-day training conference, including a half-day of For Official Use Only (FOUO) sessions, set for March 26-27 in Salt Lake City. The 2014 Spirent Federal GNSS Training Conference features hands-on training led by Spirent engineers on its latest GNSS simulation equipment. FOUO sessions will be held on... read more

This article is tagged with , and posted in Defense, Events, Latest News, Simulators & Tools

Loctronix’ Offers ASR Workbench for Software Defined Radio Module

January 15, 2014By

Loctronix Corporation, a provider of unified positioning solutions for GNSS-challenged environments, has announced the availability of the ASR Workbench, a development toolset for the company’s recently released ASR-2300 software-defined radio (SDR) module.  The ASR-2300 is a function-rich SDR for high-performance positioning, navigation and timing (PNT), and communication applications, the company said. “The ASR-2300 delivers advanced SDR capabilities in a small,... read more

This article is tagged with , and posted in Latest News, Simulators & Tools

CHC Offers GNSS Post-Processing Software

January 14, 2014By
CGO Software-CHC

CHC announced today the availability of CHC Geomatics Office (CGO), a software solution dedicated to post processing static and kinematic GNSS raw data. CGO supports GPS+GLONASS+BeiDou data in various raw data formats and is compatible with major brands, allowing a seamless integration with an existing pool of equipment, the company said. “CGO is undoubtedly the most affordable yet powerful GNSS... read more

This article is tagged with , , , and posted in Latest News, Simulators & Tools, Survey

Quad-Constellation Receiver: GPS, GLONASS, Galileo, BeiDou

January 8, 2014By

The implementation changes and first live tests of BeiDou and Galileo on Teseo-3 GNSS chips developed in 2013 are covered, bringing it to a four-constellation machine. By 2020, we expect to have four global constellations all on the same band, giving us more than 100 satellites — under clear sky, as many as 30 or 40 simultaneously. read more

Innovation: Cycle Slips

January 1, 2014By
FIGURE 1. A cycle slip affecting phase measurements but not the pseudoranges.

Detection and Correction Using Inertial Aiding
A team of university researchers has developed a technique combining GPS receivers with an inexpensive inertial measuring unit to detect and repair cycle slips with the potential to operate in real time. read more