基于游标测距的螺旋桨桨叶参数提取方法  

A Parameter Extraction Method for Propeller Blades Based on Range Vernier

作　　者：全刚 郑国毅 李强[1] 贾润熙 何晓毛 QUAN Gang;ZHENG Guoyi;LI Qiang;JIA Runxi;HE Xiaomao(Jiuquan Satellite Launch Center,Jiuquan,Gansu 732750)

机构地区：[1]中国酒泉卫星发射中心,甘肃酒泉732750

出　　处：《火控雷达技术》2024年第3期18-22,共5页Fire Control Radar Technology

摘　　要：针对螺旋桨飞机微动特征检测问题,提出了游标测距检测方法,首先假设目标运动模型,得到其回波表达式,通过雷达游标测距方法获取飞机运动轨迹测量数据,其中包含平动和微动分量,由于目标常规测距增量不包含微动分量,采用其补偿多普勒距离增量,去除平动分量,从而得到目标微动检测结果,最后结合雷达RCS测量数据进行分析,得到螺旋桨参数,实测数据表明,该方法能有效估计出螺旋桨的转速、叶片数等参数。Aiming at the problem of propeller aircraft micro-motion feature detection,a method for detecting the micro-motion characteristics of a propeller was proposed.Firstly,the target motion model was assumed and its echo expression was obtained.The measurement data of aircraft s motion trajectory were obtained by radar vernier ranging method.Since the regular ranging increment of the target did not contain the micro-motion component,it compensated the Doppler distance increment and removed the translation component,thus obtaining the detection result of the target micro motion.Finally,combining with the radar RCS measurement data,the propeller parameters and the measured data were obtained.The method can effectively estimate parameters such as the propeller rotation speed,micro-motion component,and blade number.

关 键 词：雷达 游标测距 微动 螺旋桨 

分 类 号：TN95[电子电信—信号与信息处理]