Triggering criterions of passive sensors cueing and handoff a radar

The triggering criterion of passive sensors cueing and handoff radar is deeply analyzed, focusing on its trigger mechanisms. This paper first analyzes the cueing and handoff demand and designs the multi-sensor fusion tracking model based on the synergistic characteristics of passive and active sensors. Then the covariance control is adopted to form the triggering criterions between passive sensors and radar. Finally the simulation results demonstrate the effectiveness of the criterions and discuss the trigger factors in cueing and handoff.