TDOA positioning detector for UAV is a method of positioning by the difference of arrival time of radio signals. is used for system networking by distributed radio frequency sensors. is a passive detection, recognition, positioning and tracking system for UAV radio signals.
TDOA ( Time Difference of Arrival) technology, is a wireless positioning technology, it determines the position of the signal source by measuring the absolute time difference between the signal and two or more monitoring stations. This method reduces the time synchronization requirement between the signal source and all monitoring stations, and increases the time synchronization requirement between all monitoring stations. two TDOAs can be measured by three different base stations. the mobile station is located at the intersection of the hyperbola determined by the two TDOAs. is used to locate the signal source.
The functions and functions of TDOA UAV positioning detector mainly include UAV detection and early warning, model identification, positioning tracking and trajectory playback, and driving away or forced landing of UAV.
Uav detection and early warning: TDOA detection equipment can sense and identify the surrounding suspicious UAV communication signals in real time, by using the time difference between the UAV signals to different stations, to achieve continuous locking and tracking of the target UAV.
Type identification: By analyzing the drone's communication signals, the TDOA system is able to identify the type of drone, which is critical to understanding the type of drone, performance, and possible threat level.
Location and tracking: Based on the TDOA algorithm, the system can locate the information source with high precision, can realize continuous tracking of the flight trajectory of the UAV, can even locate multiple UAV targets at the same time.
Trajectory playback: The system supports trajectory playback function. can be used to view the historical flight path of UAVs. is of great significance for analyzing UAVs behavior pattern and safety monitoring.
Drive away or forced landing: Based on the detection results, the system can be linked with the countermeasures equipment to automatically emit interference suppression signals, effectively cut off the communication charge or navigation link of the UAV, to achieve drive away or forced landing of the UAV.
In addition, TDOA UAV positioning detector also has a black-and-white list function, can effectively distinguish cooperative and non-cooperative UAs, supports large-scale grid deployment at city level, provides effective technical supervision infrastructure for fine utilization and management of low altitude airspace.
