Cluster allocation schemes for target tracking in multiple radar architecture

There is growing interest in multiple, widely separated, radar systems that employ mobile stations such as ground surveillance radars (GSRs). These are usually portable light-weight systems that may be carried by one person or mounted on a vehicle and may be employed in large numbers. In a resource-aware operation, only a subset of the existing transmit and receive antennas may be used to accomplish a given target localization accuracy. Commonly, multiple target localization is performed by scanning a given area cell-by-cell. In this paper, clustering of the multiple radar system is proposed, such that each cluster/subset covers a different search cell with the same accuracy threshold. For a specified number of search cells and accuracy threshold, the overall number of active radars is minimized. Fast approximation algorithms are proposed and evaluated.