基于并发流水线的直升机雷达多波束调度管理研究

武装直升机雷达为毫米波二维相控阵雷达,具有灵活、同时收发多个波束特征,基于此,本文提出了一种可以应用于同时多个波束通道的驻留任务管理算法。该算法在分析多波束驻留具有在时间重叠、独立波束间受能量等约束的基础上,给出最大化调度收益的多波束驻留调度模型。借鉴并发工作流水线的思想,提出一种启发式的驻留调度实现方法。仿真结果表明,由于该调度算法工作方式优先级原则和期望时间原则,有效地实现多波束驻留任务的调度,把各种任务丢失率控制在较低的范围,从而获得更高的系统实现价值率。

Research on Parallel Pipeline Based Multi-beam Scheduling Algorithm for Helicopter-Borne Radar

Helicopter-borne radar is two dimensional(2D) millimeter wave(mmW) phased-array radar,which is capable of transmitting and receiving multi-beam simultaneously in a flexible mode.A dwell management algorithm which can be used in simultaneous multi-beam channel is proposed.The algorithm is based on analysis of multi-beam dwell with overlap in time and with energy constraints between independent beams;a multi-beam dwell model with maximum scheduling benefit is given.By using of parallel pipeline idea as reference,a heuristic implementation method of dwell scheduling algorithm is presented.Simulation results demonstrate that because the dwell scheduling algorithm is based on working mode priority and expected time principle,multi-beam dwell task scheduling can be achieved effectively,various task drop ratio(TDR) can be controlled to a lower level,therefore higher system hit value ratio(HVR) can be obtained.