Research On Assignment Methods Of Active Jamming Resources In Radar Networking

In recent years, the radar technology has developed from a single radar working to become radar networking so that better detecting targets. Compared to a single radar, radar networking can appropriately arrange multiple radar that have different systems, different frequency bands and different polarization mode, integration within information of ministries radar in the networking to obtain lots of information which a single radar can’t get. Radar networking in a wide range of military applications has greatly increased the difficulty of electronic jamming by radar jamming party. So, how to interfere with radar networking effectively has become a major problem in the world of modem radar confrontation. Among them, assignment problems of jamming resources in radar networking, that is how to assign multiple jammers to interfere with radar networking system in order to achieve maximum suppression effect, is the focus of researches on radar networking jamming. This paper studies assignment problems of jamming resources in radar networking.Firstly, this paper provides an overview of radar networking and its active jamming technology, and establishes the active suppression jamming task models of a single radar and radar networking.Secondly, this paper establishes the assignment model of active jamming resources in radar networking. This paper selects the boot time based on the jammer’s own performance, the detection area based on jamming power, the frequency aiming degree based on jamming frequency and the jamming pattern of the jammer, as four evaluation indicators of active jamming effect in radar networking. And on the basis of four indicators, this paper establishes the assignment model of active jamming resources in radar networking.On the basis of achieving the assignment algorithm of active jamming resources in radar networking based on basic ant colony, for the algorithm exists the disadvantages that the accuracy is not high and real-time is bad, this paper proposes the assignment algorithm of active jamming resource in radar networking based on improved ant colony by improving algorithm state transition rules and pheromone update rules. Experiments show that, compared to the other three algorithms solving jamming resources assignment in radar networking, including the basic ant colony, the algorithm of this paper is the best on the accuracy and timeliness. Next, this paper proposes the assignment algorithm of active jamming resources in radar networking based on improved DPSO. On the basis of achieving the assignment algorithm of active jamming resources in radar networking based on DPSO, this paper proposes the new algorithm based on improved DPSO by introducing variation ideas of the genetic algorithm. Experiments show that, the accuracy of improved DPSO algorithm has greatly increased compared to the original algorithm; and compared to the improved ant colony algorithm, improved DPSO algorithm has higher stability while it has the same excellent accuracy and real-time.Finally, this paper summarizes the work of this article and prospects the future work.