Abstract
In the task scheduling problem of phased array radar, the scheduling algorithm based on time pointer is widely used because of its advantages such as high scheduling success rate and fine timeliness and so on. However, when the number of targets is small, the time shifting rate of this algorithm is too high to affect the tracking accuracy. For this question, a task scheduling algorithm based on backtracking strategy is proposed in this paper. Firstly, the time pointer is set up and selected the tasks which can be executable at the moment. When there is any tasks are selected, radar “backtracking” some tasks which have been scheduled and reschedule them. Finally, repeat the above steps until the end. Simulation results show that the scheduling algorithm based on backtracking strategy can reduce the time shifting rate significantly and without affecting the scheduling success rate. The effectiveness of the proposed algorithm is verified.
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