机载气象雷达巡航阶段目标探测方法及仿真  

Meteorological target detection method and simulation of airborne weather radar in cruise stage

作　　者：石海杰 李京华[1] 岳露[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710072 [2]中北大学信息与通信工程学院,山西太原030051

出　　处：《系统工程与电子技术》2018年第2期280-286,共7页Systems Engineering and Electronics

基　　金：国家自然科学基金(61503347)资助课题

摘　　要：提出一种可探测远距离气象目标的机载气象雷达探测方法。该方法采用多扫描技术,能有效越过雷达地平线而不受地杂波干扰。对于多波束扫过的近距离空域,采用加权融合的方法,根据各波束自身回波强度来确定权值,以提高目标探测概率;对于超过130km的远距离气象目标,采用充塞系数校正的方法,可以有效提高目标检测精度。仿真结果表明,该方法能够有效探测载机航路前方600km以内的气象目标分布情况,可以为飞行安全、航路选择和绕飞策略提供有效参考。A meteorological target detection method is proposed for long range weather targets. Multi-scan technology is used, which can effectively cross the radar horizon to detect meteorological targets free of interfer- ence from the ground clutter. For the multiple beam swept close range airspace, the weighted average method is used to improve the probability of target detection. For remote meteorological targets more than 130 km, the method of beam filling coefficient correction is used to improve the accuracy of the detection. The simulation results show that this method can effectively detect the distribution of weather target aircraft in front of less than 600 kin, and provide effective reference for flight safety, route selection and fly around strategy.

关 键 词：多扫描 机载气象雷达 数据融合 充塞系数 

分 类 号：TN959[电子电信—信号与信息处理]