车载阵列雷达姿态校正方法

Vehicle-Borne Array Radar Attitude Correction Method

针对装甲车辆、坦克等平台姿态角导致雷达扫描波束锥面倾斜,从而降低雷达测角精度和战场区域探测能力;研究了基于车载惯导三轴姿态角的阵列坐标转换和波束俯仰角自动调整的校正方法,基于波束扫描锥面和阵列坐标关系,给出了目标坐标校正算法;根据俯仰和横滚角对扫描波束的影响机理,推导出调整波束俯仰的计算公式。经仿真和工程实践验证,该方法有效可行。

Radar scanning beam becomes an oblique cone due to the platform attitude angle of armored vehicle or main battle tank, thus worsens the angle accuracy and battlefield detection capability of vehicle-borne radar. In order to solve the problem, a correction method using ar- ray coordinate conversion and beam elevation auto-adjustment based on vehicle-borne inertial navigation three-axis attitude angle is discussed. According to the relation between beam scan- ning cone and array coordinate, target coordinate correction algorithm is given. Elevation ad- justment computation formula for scanning beam is deduced based on impact mechanism of ele- vation and roll on scanning beam. Simulation and engineering practice show that the method is feasible and effective.