September 26, 2022
The Inertialist: INS-Centric Sensor Fusion
The main principals of fusing inertial navigation with other sensors.
By Andrey Soloviev
Global Navigation Satellite Systems Engineering, Policy, and Design
Global Navigation Satellite Systems Engineering, Policy, and Design
The main principals of fusing inertial navigation with other sensors.
By Andrey Soloviev
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
Space debris poses a danger to PNT. Here’s a look at the threat and how the FCC plans to regulate its removal.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
Kodiak Robotics, Inc. has been on a bit of a roll lately, developing automated solutions for long-haul truck routes in the southern parts of the U.S.
By Kevin Jost
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
A: The “GNSS Solutions” column in the May/June issue of Inside GNSS [1] described the commitments that have been made by GNSS service providers in terms of limits on Signal-in-Space (SIS) range errors, satellite failure probabilities, and times to alert and recover from failures.
By Inside GNSS
Detecting interference using machine learning algorithms to monitor ADS-B data.
By Inside GNSS
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
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
RTCA is working to develop new standards to tackle GNSS growth and challenges. Here’s an update on the special committee’s progress, provided during a recent webinar.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
Errors in inertial sensor measurements are accumulated over time, leading to drift in INS navigation outputs. While gyro bias is the main contributor, other factors, such as accelerometer bias and noise, are important to consider for balancing the overall error budget.
By Andrey Soloviev
Robustness to GPS jamming and spoofing is critical for military applications yet challenging, and numerous alternative sensing techniques have been explored over the years. Virtual aiding methods have proven effective, with the ability to constrain and localize the search space for improved operability in GPS-denied environments.
By Inside GNSS
A: GNSS users who must verify the integrity of their navigation solutions to meet safety requirements need at least some knowledge of the degree to which they can trust the signals received from GNSS satellites before additional monitoring is added.
By Inside GNSS
