Zoning hybrid fusion tracking method for dual-frequency ground wave radar

Aiming at features of dual-frequency HFGWR data fusion, this paper proposes a detection area zoning hybrid fusion tracking method. In this method, the detection area is separated into two subareas, one is far subarea and another is close subarea, and there exists an acrossing belt within these two sbuareas. Measurements fusion is executed in the far subarea, single frequency tracking is executed in the close area, and the output tracks of these two subareas are then fused to form system tracks. The zoning hybrid fusion tracking method adapts well to the characteristics of HFGWR and gives full play to the advantages of measurements fusion and track fusion. Simulation results and measured data both demonstrate that the presented method can greatly improve the whole tracking performance.