Loved it.
Geolocating a random island using geometry and CUDA programming
41–50 of 92 posts
Re: Geolocating a random island using geometry and CUDA programming
#42this is really cool. fun little problem turned into great write-up, and i love that you included the code snippets. thanks for sharing
Re: Geolocating a random island using geometry and CUDA programming
#43For drones and missiles, this technique is known as Terrain Contour Matching . If terrain contour are measured optically, navigation is independent of RF jamming, unlike GNSS. https://en.wikipedia.org/wiki/TERCOM
It’s an effective a surprisingly old technique, being used on cruise missiles as early as the 1960s. It actually precedes GPS and satellite navigation by several decades. Im continuously blown away by what engineers were able to do in that era with such limited computing power. Take a look at SAGE, for example.
Fun fact: the usage of TERCOM in the tomahawk missile actually limited its ability to be used in Operation Desert Storm. Routes had to be planned to go around actual topographical features, instead of hundreds of miles of flat desert.
Re: Geolocating a random island using geometry and CUDA programming
#44this is really cool. fun little problem turned into great write-up, and i love that you included the code snippets. thanks for sharing
really glad that you liked it
Re: Geolocating a random island using geometry and CUDA programming
#45All of this to not use Google images
Re: Geolocating a random island using geometry and CUDA programming
#46All of this to not use Google images
All of this to try and learn something new
Re: Geolocating a random island using geometry and CUDA programming
#47Nice, but Rainbolt would do it in under a minute ;)
Re: Geolocating a random island using geometry and CUDA programming
#48Nice, but Rainbolt would do it in under a minute ;)
haha, I actually agree
Re: Geolocating a random island using geometry and CUDA programming
#49Super fun! Interestingly, this is how JPL was able to significantly reduce the Mars 2020 landing radius on Mars. Cameras onboard take pictures of the terrain and match that to maps to figure out where the lander is. https://www-robotics.jpl.nasa.gov/what-we-do/flight-projects...
Re: Geolocating a random island using geometry and CUDA programming
#50I find it highly ironic that his is the second article on the main page right after "avoid building technologies that could be used by a police state".