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November 29, 2022

Q: How can two-way communications between reference stations and users enhance the performance and integrity of differential GNSS navigation?

JIYUN LEE, GIHUN NAM AND K. ANDREW SUN, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (KAIST)

A: Many forms of differential GNSS (DGNSS) exist to provide GNSS users with corrections to their pseudorange and carrier-phase measurements along with information to support their applications and provide integrity assurance [1].

By Inside GNSS

November 23, 2022

Bridging the Gap: A Look at Silicon Photonic Optical Gyro (SIPHOG) Technology

In this column, guest contributor Mike Horton from ANELLO Photonics introduces a new gyro technology that bridges the market gap between high-performance (but expensive) sensors (fiber-optic and ring laser gyros) and low-cost (but imprecise) MEMS gyros. Benefits of improved gyro quality enabled by SIPHOG are illustrated, including GNSS-denied navigation scenarios.

By Inside GNSS

November 11, 2022

ESA Outlines Plans for Demo of LEO PNT Satellites As Part of FutureNAV, Gives Other Updates

After years of studying the concept of using low-Earth orbit (LEO) navigation satellites to supplement the Galileo system, the European Space Agency (ESA) is ready to move forward with an in-orbit demonstration as part of its new FutureNAV program.

By Renee Knight

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September 28, 2022

Thwarting GNSS Spoofing Attacks

Verifying spoofing countermeasures based on sparse signal processing.

By Inside GNSS

September 22, 2022

Mitigating the Threat of Jamming and Spoofing to Aeronautics

A look at a multiscale interference monitoring approach using several different detectors, as well as an overview of findings of an interference monitoring campaign conducted at a European airport.

By Inside GNSS

NAUTILUS: An Embedded Navigation Authentication Testbed

The low-cost, lightweight platform can be easily configured for a variety of applications and test scenarios. This article focuses on its use for GNSS authentication.

By Inside GNSS

September 21, 2022

Washington View: Welcome to the Space Jam

Space debris poses a danger to PNT. Here’s a look at the threat and how the FCC plans to regulate its removal.

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September 15, 2022

BAE Systems Improves Anti-Jam Capabilities for Weapon Systems and Hosted Platforms

BAE Systems has enhanced anti-jam (AJ) capabilities on military weapon systems and the platforms that host them, giving both the same level of protection from interference—with such protection becoming even more critical as threats from adversaries continue to increase.

By Renee Knight

August 30, 2022

Geometric Beamforming with Low-Cost Antenna Arrays

A new GNSS antenna array algorithm helps simultaneously estimate the antenna array attitude and direction of the incoming multipath wave fronts, improving attitude and position accuracy.

By Inside GNSS

August 9, 2022

Analyzing Airborne GNSS Interference

Identifying GNSS interference based on ADS-B Out data and validating that data against confirmed interference from fielded airborne receivers.

By Inside GNSS

August 8, 2022

Protecting GNSS for Safe Aviation

Detecting interference using machine learning algorithms to monitor ADS-B data.

By Inside GNSS

July 27, 2022

Brussels View: Europe’s Sharp Eye on Positioning, Navigation and Timing

The European Space Agency’s new navigation head, Francisco-Javier Benedicto Ruiz, has a lot to say about GNSS, both present and future. We recently spoke with him about his views on satellite navigation, signal vulnerability and authentication, and the agency’s working relationship, or not, with Russia. The technical team behind the Galileo authentication service and industry representatives developing alternative positioning, navigation and timing solutions also share insights.

By Peter Gutierrez

July 26, 2022

Inertial Sensor Testing: Improving the Overall Navigation Solution

As guest columnist Dino Smajlovic explains, testing allows for inertial error characterization and understanding, ensuring proper error budgets and more accurate navigation solutions. Rate tables are among the tools used, with some allowing testing, characterizing and modeling in one installation step.

By Inside GNSS

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Q: How can two-way communications between reference stations and users enhance the performance and integrity of differential GNSS navigation?

Bridging the Gap: A Look at Silicon Photonic Optical Gyro (SIPHOG) Technology

ESA Outlines Plans for Demo of LEO PNT Satellites As Part of FutureNAV, Gives Other Updates

Thwarting GNSS Spoofing Attacks

Mitigating the Threat of Jamming and Spoofing to Aeronautics

NAUTILUS: An Embedded Navigation Authentication Testbed

Washington View: Welcome to the Space Jam

BAE Systems Improves Anti-Jam Capabilities for Weapon Systems and Hosted Platforms

Geometric Beamforming with Low-Cost Antenna Arrays

Analyzing Airborne GNSS Interference

Protecting GNSS for Safe Aviation

Brussels View: Europe’s Sharp Eye on Positioning, Navigation and Timing

Inertial Sensor Testing: Improving the Overall Navigation Solution