Aiming at the Jammer interference problem which threatens the flight safety of UAVs such as model aircrafts, the cooperative positioning and countermeasure technology based on micro-nano-satellite clusters is an effective solution. The main technical routes are as follows.
Integrated configuration design of satellite cluster
Deploying several micro-nano satellites with position, altitude and orbit angle distribution.
Deploy multi-point monitoring stations on the ground to form an integrated measurement baseline network in the sky and the earth.
Optimize the geometric position of each measurement node to improve positioning accuracy.
Signal Intelligent Sensing and Feature Extraction
Intelligent signal sensing technology based on machine learning
Automatically extract features from captured signals
Realize high-precision characterization of various gps scrambler signals.
Multi-dimensional measurement data correlation and separation
Based on multi-dimensional measurement data such as TDOA/FDOA/AOA.
Adaptive joint signal separation algorithm to realize multi-target separation.
Recognize and combine multiple wifi cellular jammer signal sources in complex electromagnetic environment.
High-precision Jammer cooperative position solving
Design of Jammer cooperative multi-target location solving algorithm.
Least squares and recursive algorithms for fusion of heterogeneous measurement data from multiple sources in heaven and earth
High-precision Resolution of Lojack jammer Launch Source 3D Position Coordinates
Intelligent satellite formation and area tracking
Satellite formation and motion planning based on positioning results.
Intelligent adjustment of satellite position in orbit to continuously track Jammer's position.
Realize high-precision and long-term tracking and surveillance of Jammer in the target area.
Multi-body cooperative jamming countermeasures
Planning countermeasures based on the Jammer's position
Adopt multi-beam cooperative jamming, electronic attack and other measures.
Form a multi-dimensional countermeasures system to suppress the Jammer.
Through the joint collaboration of micro-nano-satellite cluster and ground station, it can precisely locate multiple mobile rf signal detector in complex electromagnetic environment and continuously track their dynamic positions; and plan the collaborative countermeasure strategy between spacecraft and ground system to form a three-dimensional suppression system in the whole area to ensure the flight safety of the aircraft model. With strong comprehensiveness, intelligence and economy, it is a feasible solution to deal with the threat of Jammer.
