风扰动对机载单站无源定位精度影响分析  

Analysis of the Effect of Wind Disturbance on the Accuracy of Airborne Monostatic Passive Location

作　　者：刘文跃 彭世蕤[1] 何缓[1] 王广学[1] LIU Wenyue;PENG Shirui;HE Huan;WANG Guangxue(Air Force Early Warning Academy,Wuhan 430019,China)

机构地区：[1]空军预警学院,武汉430019

出　　处：《弹箭与制导学报》2020年第2期23-28,共6页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：风扰动会使无人机飞行姿态发生变化,影响机载单站无源定位技术中相位差变化率的测量精度,导致定位误差增大。为此,文中建立了风扰动下的无人机运动学模型,并分析了在常值风、突风、大气紊流3种典型风扰动下,采用经典卡尔曼滤波法提取相位差变化率后的定位精度,研究结果对无人机载单站无源定位技术的应用具有参考价值。Wind disturbance will change the flight attitude of UAV,affect the measurement accuracy of phase difference change rate in airborne single station passive positioning technology,and increase the positioning error.For this reason,this paper establishes the kinematic model of UAV under wind disturbance,and analyzes the positioning accuracy after extracting the change rate of phase difference by classical Kalman filter method under three typical wind disturbances:normal wind,sudden wind and atmospheric turbulence.The research results have reference value for the application of UAV single station passive location technology.

关 键 词：机载 相位差变化率 无源定位 风扰动 定位精度 

分 类 号：TN713[电子电信—电路与系统] TN95