The Institute of Navigation

Abstracts for JNC 25 are due February 3. Submit yours today: https://info.ion.org/jnc

Be sure to check out "Linear Estimation of Deterministic Accelerometer Errors" from the Fall 2024 issue of NAVIGATION on our open-access website: https://lnkd.in/ezWjbQ7a The deterministic errors of an accelerometer comprise the prevailing i) bias, ii) scale factor, and iii) non-orthogonality. Together, these errors result in a nonlinear measurement model, which is conventionally solved via an iterative nonlinear least-squares method. In contrast to the conventional approach, we propose a novel method to transform the above nonlinear model into a system of linear equations, resulting in an exact, closed-form solution of the deterministic errors. The developed mathematical formulations are first verified in a simulation setting, followed by a real-time implementation using Robot Operating System for small micro-electromechanical inertial measurement units.

ITM/PTTI 2025 registration is now open and the full technical program is available online: https://info.ion.org/itm

Join ION for a complimentary webinar on Wednesday, November 20 at 12PM EST titled, "Satellite Ephemeris Parameterization Methods to Support Lunar Positioning, Navigation, and Timing Services." This webinar is based on a paper published in the Winter 2024 issue of NAVIGATION and will be presented by one of the paper's authors, Keidai Iiyama, Stanford University. Register today: https://lnkd.in/e-GUsS2e

Check it out! The Fall ION Newsletter is now available online. Featured in this issue: ➡️To the Moon and Beyond ➡️GNSS Software Defined Radio ➡️ION GNSS International Community Convenes in Baltimore (ION GNSS+ 2024) ➡️oneNav Melts the Spoofing Snowflake

Read "Distributed Nonlinear Least-Squares Solver for Practical Network Determination" from the Fall 2024 issue of NAVIGATION on our open-access website: https://lnkd.in/gcaMkCCV   An integral step in an ultra-wideband localization network installation is determining the positions of the fixed infrastructure nodes, the anchors. This process is time-consuming and usually requires specialized equipment. Additionally, it is difficult to achieve scalability, as any change or addition in the network requires a redetermination of the affected anchors. One can automate this process by utilizing the distance-measuring capabilities of the network infrastructure and employing a distributed position estimation algorithm, such as the consensus subgradient (CSG) algorithm. Yet, the CSG suffers from scalability issues due to high problem dimensionality and data-sharing bottlenecks in practical applications. Consequently, implementation in embedded devices is difficult. In this article, we propose a modification of this algorithm, the neighborhood CSG, which aims toward embedded implementation by local reduction of the problem dimensions without hindering the precision of the original CSG algorithm or its convergence rate.

Happy International GNSS Day! 🛰✨ The Institute of Navigation (ION) has declared October 23 as #InternationalGNSSDay, celebrating Global Navigation Satellite Systems (#GNSS) that provide position, navigation and timing (#PNT) data. 📍🧭🕑 📅 According to the ION they chose October 23 as International GNSS Day because “the date 10.23 mirrors the foundational GPS frequency of 10.23 MHz, a number that resonates as the original heartbeat of GPS satellites, signals, and receivers.” 🌍 The Global Navigation Satellite System (GNSS) is becoming increasingly important for the critical functions of our society. Let’s celebrate our satellite navigation system today and hope that the efforts to enhance its resilience against interference will be successful. 🙌🚀 #GNSSDay #GlobalPositioning #SatelliteNavigation #GPS #Galileo #GLONASS #BDS

This #InternationalGNSSDay, let's consider the future of positioning, navigation and timing... During #IONGNSS+, we asked colleagues about what the #GNSS industry will look like in the next decade. From signal authentication to the labour market, they all agreed that #innovation across #PNT technologies is guaranteed. What do you think GNSS and #APNT will look like in the future? Thank you to The Institute of Navigation and our interview guests Dr. Todd Humphreys, Dr. Allison Kealy, Ignacio Fernández Hernández, Bryan Chan, and Dr. Jade Morton! #positioning #navigation #timing #OSNMA #LEO #AI #cybersecurity #GPS #Galileo #CommunicationsNetwork

Today we are celebrating the International #GNSS Day at the DET – Politecnico di Torino doing a GNSS data collection, a lesson on Satellite Navigation Systems and a meeting of the #LuGRE team! Happy #GNSS day! [October 23rd (aka 10.23) recalls the fundamental frequency of the satellite #navigation systems (10.23 MHz). ]. Thanks to The Institute of Navigation for promoting this!

🌍✨ Happy International GNSS Day! 🎉 Celebrated annually on October 23rd, this day honors the pivotal contributions of Global Navigation Satellite Systems (GNSS) to our modern world. Established by The Institute of Navigation (ION), it commemorates the inception of GPS and the visionaries who made satellite navigation a reality. Did you know? The date was specifically chosen to align with the original frequency of all GPS satellites—10.23 MHz. This frequency serves as the foundation for L-band signals across over 100 navigation satellites worldwide. At Safran Federal Systems, we recognize the vital role GNSS plays in ensuring safety, precision, and connectivity in various sectors. Join us in celebrating the innovations that keep our world connected! #InternationalGNSSDay #GNSS #GPS #Innovation #Navigation