Difference between revisions of "Category:GNSS-Denied Navigation"
From wiki.opennauticalchart.org
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* https://en.wikipedia.org/wiki/Trilateration | * https://en.wikipedia.org/wiki/Trilateration | ||
=== MF (medium frequency) === | === MF (medium frequency) === | ||
| − | Testbed at baltic sea made use of 7 DGPS-stations | + | * Testbed at baltic sea made use of 7 DGPS-stations: |
| − | * https://www.r-mode-baltic.eu/ | + | ** https://www.r-mode-baltic.eu/ |
| − | ** https://www.r-mode-baltic.eu/wp-content/uploads/2022/11/Final_report_R-Mode_Baltic2_v1.0.pdf | + | *** https://www.r-mode-baltic.eu/wp-content/uploads/2022/11/Final_report_R-Mode_Baltic2_v1.0.pdf |
| − | * https://interreg-baltic.eu/project-posts/ormobass/important-step-towards-r-mode-standardization/ | + | * standardization: |
| − | ** https://www.iala.int/product/g1187-medium-frequency-r-mode-signal-structure-and-navigation-message/ | + | ** https://interreg-baltic.eu/project-posts/ormobass/important-step-towards-r-mode-standardization/ |
| − | * https://www.iala.int/technical/positioning-navigation-and-timing/world-dgnss-stations-list/ | + | *** https://www.iala.int/product/g1187-medium-frequency-r-mode-signal-structure-and-navigation-message/ |
| − | * | + | * DGPS-stations: |
| + | ** https://www.iala.int/technical/positioning-navigation-and-timing/world-dgnss-stations-list/ | ||
| + | ** https://overpass-turbo.eu/s/2axW | ||
==== equipment ==== | ==== equipment ==== | ||
* RTL-SDR | * RTL-SDR | ||
| + | ** [https://www.db-thueringen.de/servlets/MCRFileNodeServlet/dbt_derivate_00068421/DLR-FB-2024-09.pdf R-Mode: An Alternative to Global Navigation Satellite Systems for Terrestrial Navigation at Medium Frequencies] | ||
=== VHF (very high frequency) === | === VHF (very high frequency) === | ||
Revision as of 08:53, 26 August 2025
GNSS (Navstar GPS (USA), GLONASS (RU), Beidou (CN), Galileo (EU)) might encounter jamming or spoofing. See https://gpsjam.org/ for daily maps of interference.
note: Galileo is now hardened by authentication (OSNMA) https://insidegnss.com/osnma-necessary-but-not-sufficient-for-gnss-security/
This page lists some alternative (marine) navigation strategies:
Contents
cross bearings
dead reckoning
radio direction finding
Measuring incoming signals’ AoA (Angle of Arrival) relative to the vehicle (bearing).
- https://en.wikipedia.org/wiki/Direction_finding
- GNSS-Denied Navigation using Direction of Arrival from Low-Cost Software Defined Radios and Signals of Opportunity
equipment
- https://www.qsl.net/df9ie/kraken--kerberos-sdr.html
- KerberosSDR
- KrakenSDR
R(anging)-Mode
R-Mode is intended to become a ground based GNSS backup.
- https://www.navigation-mac.fr/r-mode-futur-systeme-de-positionnement-alternatif/?lang=en
- https://en.wikipedia.org/wiki/Trilateration
MF (medium frequency)
- Testbed at baltic sea made use of 7 DGPS-stations:
- standardization:
- DGPS-stations:
equipment
VHF (very high frequency)
Testbed at baltic sea made use of 4 AIS base-stations.
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