3 ms·
Would it be possible to construct a network of passive radar receivers (assuming some time-sync between them, like the KiwiSDR's GPS receiver), and trilaterate
by myself248 4y ago
Would it be possible to construct a network of passive radar receivers (assuming some time-sync between them, like the KiwiSDR's GPS receiver), and trilaterate the actual positions of planes?
From there, the next step is to hide the ones that seem to line up with ADS-B data, and show only what's left, and that would be all the "black" flights...
- RF_Savage 4y agoSome ADS-B receivers do that with GPS sync. If a position has poor accuracy and is shown as "mlat" it' multilaterated based on when multiple receivers received the ADS-B packet. So while the plane is not transmitting it's location, the transmission can be used to identify and locating it. An actual passive radar network with multiple receive sites is reportedly a commerical product from multiple vendors, but it's not easy nor cheap.