Abstract: The high efficient time resource allocation in the phased array radar is the key to optimize its superiorities. A novel scheduling algorithm is proposed, which considers the threat level of targets. The nonlinear quantitative model of target threat level and the task deadline are mapped to the same layer to calculate the task comprehensive priority by designing the two-dimensional priority table. In the performance evaluation of the algorithm, the conception of executive threat rate is presented to reflect the execution of scheduling algorithm on the important tasks. The simulated results show that the proposed algorithm effectively decreases the deadline missing ratio of tasks, and improves the time utilization ratio and the executive threat rate compared with the previous high efficient priority algorithm in the saturated tracking task situation.

Key words: ordnance science and technology, phased array radar, adaptive scheduling, comprehensive priority, target threat level