Hacker News with Generative AI: Radar

Homemade polarimetric synthetic aperture radar drone (hforsten.com)
I have made several homebuilt radars and done some synthetic aperture imaging testing with them on the ground. I have wanted for a long time to put a radar on a drone and capture synthetic aperture images from air.
DIY, Radar, Drones
608 points by picture 5 days ago | 58 comments
Homemade polarimetric synthetic aperture radar drone (hforsten.com)
I have made several homebuilt radars and done some synthetic aperture imaging testing with them on the ground. I have wanted for a long time to put a radar on a drone and capture synthetic aperture images from air. When I last looked at this few years ago, medium sized drones with payload capability were around 1,000 EUR and up. For example in Low-Cost, High-Resolution, Drone-Borne SAR Imaging paper by A. Bekar, M. Antoniou and C. J.
Drones, Radar
17 points by Luc 7 days ago | 2 comments
Wi-Fi and the Problem with Radar (DFS) (iptel.com.au)
It sounds like a bit of a stretch for most people that Wi-Fi would have an issue with Radar. Microwave ovens are a pretty well known interferer with Wi-Fi in the 2.4GHz spectrum (they generate alerts for interferers, so we know they're there!)
Wi-Fi, Radar, Technology, Interference
19 points by zeristor 56 days ago | 7 comments
Building an aircraft radar system in JavaScript (2022) (charliegerard.dev)
A few years ago, I came across this awesome talk by Thomas Watson in which he talks about how he built AirplaneJS, a web app that picks up ADS-B radio signals from airplanes and plots them in real time on a map in the browser.
JavaScript, Aviation, Software Development, Web Development, Radar
8 points by rmason 111 days ago | 1 comments
China's "Groundbreaking Radar" Detects F-22 Stealth Fighters Using BeiDou Signal (eurasiantimes.com)
Chinese scientists have reportedly developed a new radar technology that can track and detect the US Air Force’s F-22 Raptor, one of the world’s most advanced stealth fighter jets.
Military Technology, China, Stealth Technology, Radar, F-22 Raptor
9 points by ms7892 125 days ago | 1 comments
Starlink radiation makes stealth target glow on Chinese radar (scmp.com)
An unprecedented radar experiment conducted by Chinese scientists in the South China Sea could change the game of future warfare.
Military Technology, Radar, Space Technology, China, Stealth Technology
22 points by askl 158 days ago | 4 comments
Open-source passive radar taken down for regulatory reasons (2022) (hackaday.com)
Open-source, Radar, Regulations, Software
67 points by DreamGen 312 days ago | 3 comments