From the Magazine

The Business — March 2014

March 1, 2014By

The Business section of the May 2014 issue. Download the PDF. Includes: Spirent’s SimSAFE Fights Signal Vulnerability; JAVAD TR-3 Receiver; Teleorbit Upgrades Simulation Environment; IFEN Contract for Galileo Signal Test Bed; Spectracom Program for Application-Specific Testing; Spectra Precision SP-80 Uses Six GNSS Systems; Briefs read more

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

Recording and Replay for Multiple Constellations and Frequency Bands

March 1, 2014By
Figure 10. Live and replayed drive around in Coventry.

The design and verification of a new class of portable wideband record-and-playback system considers the relative merits and limitations of both simulator and record/replay approaches. The authors also discuss the benefits of the different test approaches to the development and characterization of various GNSS receiver types. read more

The Business — February 2014

February 1, 2014By

The Business section from the January 2014 issue (Download the PDF). Includes: 2014 Receiver Survey Addendum (for the full survey, click here); FAA Selects Six Sites for UAV Research; NovAtel Supplies Reference Receivers for IRNSS Ground Segment; SkyTraq Seeks Crowdfunding for GPS/BeiDou Development Board; Hemisphere GNSS Names Chuck Joseph President and CEO; Honda Joins Google Alliance to Develop GPS Solutions;... read more

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

Out in Front: Complements of the Season

February 1, 2014By
Alan Cameron

In the wake of last month’s Expert Advice column on eLoran — “The Low Cost of Protecting America” by Dana Goward of the Resilient Navigation and Timing Foundation —  come several positive comments and encouraging developments. Rather than rehearse all the arguments why we should care about this, I’ll repeat the one word that I heard most often in GNSS... read more

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

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

The Business — January 2014

January 1, 2014By

The Business section from the January 2014 issue (Download the PDF). Includes: Raytheon Receives $16M Contract  for Miniaturized Airborne Receivers; Loctronix Ships Software-Defined Radio Module; Amazon Demonstrates Drone Deliver; CHC Delivers 520 Receivers in Myanmar Contract; Qualcomm Chipset Offers 4G LTE World Mode; u-blox Launches Timing Module; Broadcom Offers Location Chip with BeiDou Support; more. read more

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