What is GNSS?
GNSS is the abbreviation of Global Navigation Satellite System (GNSS), including China's BeiDou Satellite Navigation System (BDS), the U.S. Global Positioning System (GPS), Russia's GLONASS Global Navigation Satellite System (GLONASS), and the European Union's Galileo satellite navigation system (GALILEO), the system allows the UAV to locate itself in real time, which in turn allows it to hover and stabilize its flight.
When the UAV GNSS signal is weak, the impacts that can occur are The key to the GNSS system is to realize the reception and resolution of satellite signals, of which signal tracking is one of the key technologies.
However, under certain conditions, such as high latitude areas, dense urban high-rise building areas, and laminar cloud weather, the GNSS signal may become weak, which in turn leads to poor positioning results.
In the case of poor GNSS signals but sufficient ambient light, the vision system can provide the UAV with localization and environment sensing capabilities to help the UAV achieve stable hovering.
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