Jammer Collaborative Localization and Countermeasure Technology Based on Micro-Nano-Satellite Cluster

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 clusterDeploying 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 ExtractionIntelligent signal sensing technology based on machine learningAutomatically extract features from captured signalsRealize high-precision characterization of various gps scrambler signals.Multi-dimensional measurement data correlation and separationBased 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 solvingDesign 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 earthHigh-precision Resolution of Lojack jammer Launch Source 3D Position CoordinatesIntelligent satellite formation and area trackingSatellite 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 countermeasuresPlanning countermeasures based on the Jammer’s positionAdopt 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.