GPS: Difference between revisions

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(I just read and watched some about GPS and RTK)
 
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=Basics=
*An abbreviation for Global Positioning System
*Was originally less accurate civilians due to a system of [https://en.wikipedia.org/wiki/Error_analysis_for_the_Global_Positioning_System#Selective_availability Selective Availability], but this system was later stopped via software on midnight on May 1, 2000, and Block-III satellites will be physically incapable of it, so this will remove it in hardware over time
*A USA Owned and Run [[Navigational Satellite Constellation]]
*The first system of it's kind from [https://en.wikipedia.org/wiki/SECOR SECOR] which was a survey system adapted into a crude SATNAV system to Block-1 of GPS
*Worldwide Coverage (Albeit with lesser coverage in certain areas, and this becomes less of a problem with each new launch)
*Is also augmented for use in certain regions using [[GNSS Augmentation]] methods


=Internal Links=
*[[SATNAV]]
*[[List of Navigational Satellite Constellations]]


=External Links=
*[https://en.wikipedia.org/wiki/Global_Positioning_System The Wikipedia Page on GPS]


I read some more about precision GPS and RTK after the [[Open_Source_Robotic_Tractor]] on Youtube [https://youtu.be/xGmvtC_JSkI Open Source GPS Tractor].<br>
[[Category: Cartography, GIS, Maps, and Surveying]] [[Category: Navigation]]
 
[https://www.swiftnav.com Swiftnav] with [https://www.swiftnav.com/piksi-multi/ Piksi Multi] look nice.<br>
Not completely but more open source then others. Maybe a bit more sensitive to reflections and vegetation that can obstruct or bounce the GPS signals compared to U-blox [https://www.u-blox.com/en/product/neo-m8p-series UBlox Neo-M8P] But this can probably be avoided by controlling the bot and have the antenna higher on pole on the rover or the tractor.
 
[https://youtu.be/dGpeIeRMnU4 Youtube - Piksi Multi | Low Cost RTK GPS L1 L2 | Swift Navigation | Setup]<br>
[https://youtu.be/T2dnQaqobJw Youtube - Swift Piksi Multi (L1+L2) RTK test - challenging environment (2.4 Ghz radios, Firmware v1.1.27)]<br>
[https://youtu.be/Ocxjwh99GbM Youtube - Drones in Precision Agriculture]<br>
<br>
[https://youtu.be/hjWoYcxi2og Youtube - TerraSentia Autonomous Navigation with RTK GPS]<br>

Latest revision as of 00:55, 29 October 2022

Basics

  • An abbreviation for Global Positioning System
  • Was originally less accurate civilians due to a system of Selective Availability, but this system was later stopped via software on midnight on May 1, 2000, and Block-III satellites will be physically incapable of it, so this will remove it in hardware over time
  • A USA Owned and Run Navigational Satellite Constellation
  • The first system of it's kind from SECOR which was a survey system adapted into a crude SATNAV system to Block-1 of GPS
  • Worldwide Coverage (Albeit with lesser coverage in certain areas, and this becomes less of a problem with each new launch)
  • Is also augmented for use in certain regions using GNSS Augmentation methods

Internal Links

External Links

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