Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
mamot.fr is one of the many independent Mastodon servers you can use to participate in the fediverse.
Mamot.fr est un serveur Mastodon francophone, géré par La Quadrature du Net.

Administered by:

Server stats:

3.1K
active users

mamot.fr: AboutStatusProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.4

#navigation

13 posts12 participants1 post today
Public
toiida🌻

Напольная навигация для слабовидящих может привести как к работающему эскалатору, так и к выключенному. В одном месте пупырки и полоски ведут к всегда запертой двери. В настоящий тупик — соседние двери тоже заперты. #peoplea #navigation #moscowunderground #MW #ктотонудный

Public
Hacker News

Quantum-assured magnetic navigation with higher positioning accuracy than GPS

arxiv.org/abs/2504.08167

arXiv logo
arXiv.orgQuantum-assured magnetic navigation achieves positioning accuracy better than a strategic-grade INS in airborne and ground-based field trialsModern navigation systems rely critically on GNSS, which in many cases is unavailable or unreliable (e.g. due to jamming or spoofing). For this reason there is great interest in augmenting backup navigation systems such as inertial navigation systems (INS) with additional modalities that reduce positioning error in the absence of reliable GNSS. Magnetic-anomaly navigation is one such approach, providing passive, non-jammable navigation through periodic position fixes obtained by comparing local measurements of Earth's crustal field against known anomaly maps. Despite its potential, existing MagNav efforts have been limited by magnetometer performance and platform noise; solutions addressing these problems have proven either too brittle or impractical for realistic deployment. Here we demonstrate a quantum-assured MagNav solution based on proprietary quantum magnetometers with by a novel denoising and map-matching algorithms. The system fits on fixed-wing drones or in the avionics bay of a commercial airliner. We present trials at altitudes up to 19000 feet, testing onboard and outboard quantum magnetometers comparing against a strategic-grade INS. Our MagNav solution achieves superior performance, delivering up to 46x better positioning error than the velocity-aided INS; the best final positioning accuracy we achieve is 22m or 0.006% of the flight distance. Airborne trials consistently achieve at least 11x advantage over the INS across varying conditions, altitudes, and flight patterns. The system learns model parameters online without special vehicle maneuvers providing robustness to various configuration changes (e.g. changing payload or latitude). Our trials also include the first successful MagNav performed in a ground vehicle using publicly-available anomaly maps, delivering bounded positioning error 7x lower than the INS, with both systems in strapdown configuration.
#HackerNews#Quantum#Navigation
Public *
Emus for Entropy

Quantum Navigation via Magnetic fields.

<quote>
Even when the equipment was mounted inside a plane, where interference is much worse, it outperformed existing systems by at least 11x. This is the first time quantum technology has been shown to outperform existing tech in a real-world commercial or military application, a milestone referred to as achieving “quantum advantage."
</quote>

Not only for the military !

interestingengineering.com/inn

Interesting EngineeringNew quantum-based navigation tech beats GPS precision by 50 timesExplore the advantages of Q-CTRL's quantum navigation system that operates independently of GPS and offers unparalleled accuracy.
#Quantum#Sensors#Navigation
Public
Marc Becker

Ich teste verschiedene Navi-Apps für meine Fahrradtouren. Komoot habe ich lange genutzt, aber da gefällt mir die Routenplanung nicht. Ich hätte gerne, wie bei Cobi-Bike, das mir alternative Routen angeboten werden (z.B. ruhige, schnellste, kürzeste Strecke). Cobi-Bike nutzt zu viele Straßen und nicht die Fahrradwege... Bei Bikemap ist die Führung während des Fahrens nicht sonderlich gelungen. Jetzt bleibt noch Strava... Was nutzt ihr so? #fahrrad #navigation

Public
Blender Dumbass ( J.Y.Amihud )

From: blenderdumbass . org

Paps needs to walk from his room to a car, wait for you, the player to sit with him into said car, and then drive you across a town to a completely different location. Seamlessly.

Read or listen: blenderdumbass.org/articles/pa

blenderdumbass . orgPath Finding in UPBGE for Dani's Race
More from Blender Dumbass ( J.Y.Amihud )
#DanisRace#MoriasRace#Gamedev
Public
💧🌏 Greg Cocks

1809 ‘Chart’: "Southern Celestial Hemisphere On The Plane Of The Equator:..
--
“On which is carefully defined the Boundaries of the Conftellations & all the Stars to the Sixth Magnitude inclufive.
From the Aftronomical Catalogue of the Rev. M. Wollaston, F.R.S”
--
atlascoelestis.com/Woll%20base <-- details of the text and map(s) for astronomy students (in Italian)
--
en.wikipedia.org/wiki/Southern <-- shared Southern Celestial Hemisphere wiki page
--
My other ½ – an astrophysicist working currently in space weather – gave me this map/chart… Now I have to find someone to preserve and frame it - sheesh! ~smile~
#GIS #spatial #mapping #map #cartography #preserve #frame #teachingaid #education #oldmap #SouthernCelestialHemisphere #stars #starchart #astronomy #celestialmapping #observation #charting #navigation #mapgeeks #mapnerds

ExploreLive feeds
About