![Institute of Navigation](/img/default-banner.jpg)
- Видео 271
- Просмотров 45 997
Institute of Navigation
Добавлен 7 ноя 2007
The Institute of Navigation is the world's premier non-profit professional society advancing the art and science of positioning, navigation and timing (PNT). Learn more at www.ion.org.
Webinar: Authentication Security of Combinatorial Watermarking for GNSS Signal Authentication
The full paper can be accessed for free at: navi.ion.org/content/71/3/navi.655
Watermarking signal authentication is a technique in which a global navigation satellite system (GNSS) provider cryptographically perturbs the spreading code to allow for limited cryptographic authentication of a signal. Several proposals and studies have been presented or are underway to augment GNSS signals with this capability. This work reintroduces a generalized combinatorial watermarking function that affords a flexible pathway to cryptographically prove the authentication security of a signal with receiver observables under certain assumptions. The security levels are comparable to those of standard crypt...
Watermarking signal authentication is a technique in which a global navigation satellite system (GNSS) provider cryptographically perturbs the spreading code to allow for limited cryptographic authentication of a signal. Several proposals and studies have been presented or are underway to augment GNSS signals with this capability. This work reintroduces a generalized combinatorial watermarking function that affords a flexible pathway to cryptographically prove the authentication security of a signal with receiver observables under certain assumptions. The security levels are comparable to those of standard crypt...
Просмотров: 38
Видео
Expanding Network RTK Coverage Using Ionospheric Free Combination and Kriging for Troposphere
Просмотров 4021 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. Network real-time kinematic (NRTK) coverage is defined as the area inside a station network. In conventional NRTK, the distance between stations is limited to 100 km, thus restricting the coverage of NRTK. In this study, we...
Highly Efficient RTK-Based Precise Relative Navigation for Autonomous Rendezvous CubeSat
Просмотров 4121 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. This study addresses the practical challenges associated with real-time kinematic relative navigation for cube satellites (CubeSats) performing rendezvous missions in a low Earth orbit (LEO). Considering the limitations of ...
Integrity-Constrained Factor Graph Optimization for GNSS Positioning in Urban Canyons
Просмотров 3721 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. Global navigation satellite system (GNSS) integrity monitoring (IM) has been introduced in aviation, but remains challenging for urban scenarios because of limited satellite visibility and strong multipath and non-line-of-s...
Impacts of Global Navigation Satellite System Jamming on Aviation
Просмотров 4921 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. Global navigation satellite systems have enabled significant improvements in aeronautical navigation. However, in recent years, a growing number of interference events have been reported by flight crews. In this paper, we f...
High-Precision Time Transfer and Relative Orbital Determination Among LEO Satellites in Real Time
Просмотров 3621 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. For low-Earth-orbit (LEO) satellites, high-precision clock estimation often depends on high-precision real-time global navigation satellite system (GNSS) products. Thus, service providers often choose to downlink observatio...
Distributed Nonlinear Least-Squares Solver for Practical Network Determination
Просмотров 2021 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3.
Linear Estimation of Deterministic Accelerometer Errors
Просмотров 2421 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. 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 ...
Kalman Filtering with Uncertain and Asynchronous Measurement Epochs
Просмотров 3421 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. This paper develops an asynchronous measurement processing technique for sequential filtering that effectively handles small errors in the measurement sampling epoch within a linearized framework. The derived method relaxes...
Authentication Security of Combinatorial Watermarking for GNSS Signal Authentication
Просмотров 1521 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. Watermarking signal authentication is a technique in which a global navigation satellite system (GNSS) provider cryptographically perturbs the spreading code to allow for limited cryptographic authentication of a signal. Se...
Weiss-Weinstein Bound of Frequency Estimation Error for Very Weak GNSS Signals
Просмотров 1221 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. Tightness remains the primary goal in all modern estimation bounds. For very weak signals, tightness is enabled by appropriately selecting the prior probability distribution and bound family. While current bounds in global ...
Factor Graphs for Navigation Applications: A Tutorial
Просмотров 3821 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. This tutorial presents the factor graph, a recently introduced estimation framework that is a generalization of the Kalman filter. An approach for constructing a factor graph, with its associated optimization problem and ef...
Array-Aided Precise Orbit and Attitude Determination of CubeSats using GNSS
Просмотров 3121 день назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 3. For full paper, or more information, navi.ion.org/content/71/3. CubeSats hold promise for various applications, but their viability in demanding missions such as future low Earth orbiting position, navigation, and timing (LEO-PNT) systems hinges on higher orbital accuracy and reliable a...
Webinar: Implementation and Accuracy of Doppler Navigation with LEO Satellites
Просмотров 4492 месяца назад
The full paper can be accessed for free at: navi.ion.org/content/71/2/navi.649 Utilizing broadband low Earth orbit satellite signals in an opportunistic manner for navigation is becoming increasingly popular. This paper deals with a particularly useful approach for navigation based on satellite signals of opportunity, which uses carrier Doppler-shift observables. We provide analytically derived...
Assessment of Cryptographic Approaches for Quantum-Resistant Galileo OSNMA
Просмотров 683 месяца назад
Video abstract for paper published in NAVIGATION: Journal of the Institute of Navigation, Volume 71 Number 2. For full paper, or more information, navi.ion.org/content/71/2. As time goes on, quantum computing has become more of a reality, bringing several cybersecurity challenges. Modern cryptography is based on the computational complexity of specific mathematical problems; however, as new qua...
Implementation and Accuracy of Doppler Navigation with LEO Satellites
Просмотров 863 месяца назад
Implementation and Accuracy of Doppler Navigation with LEO Satellites
ICET Online Accuracy Characterization for Geometry-Based Laser Scan Matching
Просмотров 223 месяца назад
ICET Online Accuracy Characterization for Geometry-Based Laser Scan Matching
Can Numerical Simulations of EPB Plume Structures be Simplified for Operational and Practical Usage?
Просмотров 223 месяца назад
Can Numerical Simulations of EPB Plume Structures be Simplified for Operational and Practical Usage?
Adaptive MM KF for GNSS Carrier Phase and Frequency Estimation Through Wideband Interference
Просмотров 483 месяца назад
Adaptive MM KF for GNSS Carrier Phase and Frequency Estimation Through Wideband Interference
Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities
Просмотров 473 месяца назад
Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities
Digital Twin-Enabled Characterization of GNSS Multipath in Challenging Reference Stations Using a...
Просмотров 233 месяца назад
Digital Twin-Enabled Characterization of GNSS Multipath in Challenging Reference Stations Using a...
Improved Time-Step Method for Bounding Nominal Spatial and Temporal Ionospheric Gradients for GBAS
Просмотров 143 месяца назад
Improved Time-Step Method for Bounding Nominal Spatial and Temporal Ionospheric Gradients for GBAS
Enhancing Navigation Accuracy in a Geostationary Orbit by Utilizing a RNSS
Просмотров 213 месяца назад
Enhancing Navigation Accuracy in a Geostationary Orbit by Utilizing a RNSS
Synthesized Binary Offset Carrier Modulation for Interoperable GNSS L1 Band Signals
Просмотров 383 месяца назад
Synthesized Binary Offset Carrier Modulation for Interoperable GNSS L1 Band Signals
GPS Spoofing-Resilient Filtering Using Self-Contained Sensors and Chimera Signal Enhancement
Просмотров 1083 месяца назад
GPS Spoofing-Resilient Filtering Using Self-Contained Sensors and Chimera Signal Enhancement
Geodetic Altitude from Barometer and Weather Data for GNSS Integrity Monitoring in Aviation
Просмотров 273 месяца назад
Geodetic Altitude from Barometer and Weather Data for GNSS Integrity Monitoring in Aviation
Hong Kong UrbanNav: An Open-Source Multisensory Dataset for Benchmarking Urban Navigation Algorithms
Просмотров 3254 месяца назад
Hong Kong UrbanNav: An Open-Source Multisensory Dataset for Benchmarking Urban Navigation Algorithms
Pacific PNT 2024 Keynote: SmallSats in Hawai'i: Remote Sensing Research in Hawaii
Просмотров 674 месяца назад
Pacific PNT 2024 Keynote: SmallSats in Hawai'i: Remote Sensing Research in Hawaii
Mauka to Makai: Collaboration with Native Hawaiian groups to conserve Hawaii's mountains and reefs
Просмотров 794 месяца назад
Mauka to Makai: Collaboration with Native Hawaiian groups to conserve Hawaii's mountains and reefs
Fault-Free Integrity of Urban Driverless Vehicle Navigation with Multi-Sensor Integration
Просмотров 2665 месяцев назад
Fault-Free Integrity of Urban Driverless Vehicle Navigation with Multi-Sensor Integration
Davis Elizabeth Clark Jose Thomas Mary
Thompson James Clark Jose Robinson Paul
Garcia Elizabeth Moore Deborah Smith Eric
thanks a lot
Thanks everyone for joining me. It was my pleasure to host the webinar! If anyone has any thoughts or questions, please comment here!
Very interesting concept. This is very interesting for application in geodesy/ airborne gravimetry, where the Velocity and kinematic acceleration is of great importance. Thanks Ariel.
'Promo sm' ✨
I will have to watch this video twice at least...
Looking forward to being part of this community when my antenna arrives😊
Excellent Video! Can't wait to see what the future holds for this project!
Geodnet is doing a phenomenal job incentivizing where to deploy 👏
Thankyou
🎯
I want to ask for the future work of the fgo
To make it achieving better real-time performance!
I love the idea of DePIN, they are the only crypto projects i join. People on their own deploying a physical network. Off oading that cost to the public in the hopes that it will be worth it all. I thought about this during covid for something like folding@home when i was donating my compute power, and turned out this idea is already a thing (DePIN). Rewarding real world work with tokens, which are virtually "free" to the project managers in order to create something great together. The key is to reward ppl that do it right, and not get a repeat of projects that reward ppl in seemingly meaningless ways.
where is the code available?
Great introduction to the project. Love how the web3 and DePIN model fits perfectly with this network.
@ my ❤ & 🙏
Hi can be use AM iboc ofdm to make idem work?
This is your granddaughter:Good Job Zeyde ❤❤😘😘
Well Explained! Thanks.
Nice presentation! What is the meaning of matrix P? Compared with the conventional GDOP based satellite selection, what are the differences?
Nice presentation and very interesting work!
Thank you Dr. Humphreys for such a wonderful lecture
What an elegant method for satellite selection!
Very good
Good Contribution to IRNSS research community...
Thank you so much
Wow so many advancements in the field of GNSS
𝓅𝓇o𝓂o𝓈𝓂 😳
Thank you for sharing this information! I am on the Physics and Robotics Research Team under Dr. Lucia Riderer at Citrus College. We are currently building an autonomous rover and I have been looking into Mchenry's work. It is great to hear this information directly from him!
Thank you…this is a topic I’m interested in
Is the narrator one of the paper authors?
thank you elite
Why is this only single channeled (left channel only has voice!)? would really appreciate if you fix the issue thanks
Dr. Todd Humphreys is such an inspiring personality in the field of GNSS Signal security
Excellent talk. This can really raise the awareness to defend the “code jammed” attack for GNSS receivers.
Very good and funny videos bring a great sense of entertainment!
I think if you want to obtain accurate position estimates for all vehicles in a swarm (in order for instance to follow a given flight path accurately in the global frame) you'd still need at least 3 vehicles with GPS (or any other absolute position measurement). Then all other vehicles can estimate their positions using range measurements to these 3 vehicles.
I have absolutely 0 experience with navigation systems. But Kerbal Space Program, and the incredible "easy to understand" description of events (along with these absolutely fantastic analyses) by Dr. Kruizinga made this video one of the most interesting things I've ever learned. Thanks 😊 Would love to learn more about passive sonar... but it might be too secret!
Magazine write-up of this talk: insidegnss.com/end-game-for-urban-gnss-googles-use-of-3d-building-models/
Thanks for your sharing!
That was quick!
Love it! Thanks for promoting the fundamental navigation science! Definitely will share to our students!
Why foes it feel like as we keep on going higher in engineering education the different fields of engineering are interrelated eith each other.