Comments
tryplot t1_iwpntim wrote
and robo-taxies that only operate within the city.
Regolith_Prospektor t1_iwpre6u wrote
I mainly need to know if this will work with my Multi-Pass?
kaihatsusha t1_iwry7yd wrote
Only in major cities in Texas.
StormlitRadiance t1_iws3qju wrote
10cm positioning means that delivery drones can come to your balcony.
Creative-Run5180 t1_iwpayl4 wrote
Time for a even better surveillance state? Yay!
thruster_fuel69 t1_iwpppal wrote
Police drones! Wee!
error201 t1_iwpcxg5 wrote
Great. Keep it away from my phone.
MeanEYE t1_iwpuwi9 wrote
GPS also supports high precision, but that's locked for military support. Business gets more accuracy but not as much. With Galileo system it's even better and goes down to < 20cm, already at service level 1. So am not finding their accuracy all that impressive considering there are systems in place which already offer same.
Industrial_Jedi t1_iwpwulq wrote
Survey grade GPS can get you in the single digit cm range if you want to spend the $$$ on equioment. The problem is that they may take a few minutes to get there, so it's impractical for things that are in motion.
surveyorandrew t1_iwrq2yu wrote
We can do survey-grade observations while in motion using RTK, the only caveat is you have to maintain satellite lock otherwise you have to re-initialize. The systems are sophisticated enough now that it isn’t much work to setup. Some of my favorite projects I’ve done involved mounting a RTK GPS to an ATV/quad and driving back and forth across a 400-acre farm for a topo survey, with the GPS automatically taking shots every 20 feet. I’d say the more efficient way to do it nowadays would be with drone photogrammetry.
[deleted] t1_iwpxrl7 wrote
[removed]
marigolds6 t1_iwr64wn wrote
It's not that the military code is high precision and civilian is not. M-code is just there to provide a standalone alternative to civilian band that is more resistant to jamming.
Differential gps and WAAS provide sub-centimeter accuracy with civilian bands.
Salisen t1_iwu46mg wrote
Only after long averaging times, suffers from multipath effects and is vulnerable to cyberattacks, missiles, etc.
Kooky_Support3624 t1_iwqm7gi wrote
Civilian GPS has limited number of satellites they are authorized to connect to at a time. Military GPS can connect up to 24 satellites at a time for an accuracy better than 10cm with better response time. Still cool to see alternatives to DoD dependent technology.
VTCifer t1_iwroyhp wrote
>Civilian GPS has limited number of satellites they are authorized to connect to at a time. Military GPS can connect up to 24 satellites at a time for an accuracy better than 10cm with better response time. Still cool to see alternatives to DoD dependent technology.
Yeah, going to need a citation on that.
1- GPS receivers don't 'connect' to GPS satellites. The GPS satellites are (for the nature of receivers) broadcast only.
2- The US Air Force has only committed to keeping 24 satellites in total operational 95% of the time. There's actually only 31 actually flying satellites currently. No way you could receive signals from 77% of the satellites in orbit at the same time ~50% of them are going to be below the horizon at any given time, and they operate on line of sight. (?probably? slightly less than 50% due to curvature of the earth)
Kooky_Support3624 t1_iwrr4wi wrote
The citation is that I am a SME on avionics. All the GPS modules I have worked on have potential for 24 connections(channels) at a time, typically you will never see more than 18 at any one time. It is a one way connection yes, and they use something similar to frequency hop to effectively encrypt all but 3 or 4 for civilian use.
Edit: for further clarification, they have to recieve a steady signal before they use pings from any particular satellite. That confirmation process is what I am referring to as connecting.
the_phet OP t1_iwp9eg2 wrote
Lesbihonest2004 t1_iwpoeao wrote
I work various BioBlitz events for conservation property and this would be pretty neat to implement for documenting various inverts we find on the property! We use iNaturalist to document so having more accurate coordinates would be great.
AutoModerator t1_iwp9e51 wrote
Welcome to r/science! This is a heavily moderated subreddit in order to keep the discussion on science. However, we recognize that many people want to discuss how they feel the research relates to their own personal lives, so to give people a space to do that, personal anecdotes are allowed as responses to this comment. Any anecdotal comments elsewhere in the discussion will be removed and our normal comment rules apply to all other comments.
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.
[deleted] t1_iwphc30 wrote
[removed]
[deleted] t1_iwpvcwz wrote
[removed]
PepiHax t1_iwqkqey wrote
It's a nice system, but it seems like it would cost more then GPS to implement, could probably augment a gnss receiver pretty well.
Sentsuizan t1_iwr4nw6 wrote
Can't wait to get ads for walking past the store
[deleted] t1_iwrxdar wrote
[removed]
dan_dares t1_iwpb309 wrote
More accurate, but heavily tied to urban environments and mobile infrastructure..
Will be of immense use with automated drones however.