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文章研究了船载相控阵风廓线雷达监控系统的关键技术,并提出了最新解决方案。利用Altera公司开发的基于SOPC技术的NiosⅡ嵌入式处理器设计,实现了船载相控阵风廓线雷达天线波束在大地坐标系、甲板坐标系和天线坐标系之间的方位角及俯仰角的坐标变换,并利用NIOSⅡ完成船载相控阵风廓线雷达电子波束的预测修正补偿算法,实现船载相控阵风廓线雷达对于空中方位目标的实时而准确的跟踪测量。仿真结果表明,坐标变换一次所需的时间约为7 ms,标量卡尔曼预测算法一次预测所需时间不足1 ms。
The paper studies the key technology of shipborne phased-array wind profiler monitoring system and puts forward the latest solution. The design of the Nios II embedded processor based on SOPC technology developed by Altera Corporation realizes the azimuth and elevation coordinates of the shipborne phased-array wind profile radar antenna beam between the earth coordinate system, the deck coordinate system and the antenna coordinate system Transform and make use of NIOS Ⅱ to complete the prediction correction and compensation algorithm of the ship-borne phased-array wind profile radar electron beam to realize the real-time and accurate tracking measurement of the shipborne phased-array wind profile radar for the airborne azimuth target. Simulation results show that the time required for coordinate transformation once is about 7 ms, and the time required for a prediction of scalar Kalman prediction algorithm is less than 1 ms.