方位俯仰跟踪框架下的角偏差无奇点修正方法
发布时间：2019-06-16 18:01
【摘要】：分析回顾了雷达工程中,当前通用的方位俯仰极坐标框架下,无线电雷达跟踪测量系统角偏差正割补偿修正方法的由来及其局限性;提出了跟踪指向坐标系的定义。利用坐标转换原理给出了一种简便易行的偏差无奇点精确修正推导新方法,并证明了新方法与通用的基于立体几何推理方法的等价性,同时分析了新方法在雷达轴系偏差修正中的典型应用及其对系统跟踪测量精度的影响。对于89°仰角、方位俯仰角偏差均为3 mrad的情形,正割补偿修正法指向计算存在6 759.2″的方位角误差和63.5″的俯仰误差。新的推理方法有利于极坐标框架下的空间目标高精度跟踪与测量,尤其是高仰角过顶跟踪性能、指向精度和跟踪数据利用率的提高。
[Abstract]:This paper analyzes and reviews the origin and limitation of the correction method of angular deviation cutting compensation for radio radar tracking and measuring system under the current azimuth pitch polar coordinate framework in radar engineering, and puts forward the definition of tracking pointing coordinate system. Based on the principle of coordinate transformation, a simple and feasible method for deducing accurate correction of deviation without singularity is presented, and the equivalence between the new method and the general method based on stereo geometry is proved. At the same time, the typical application of the new method in radar shafting deviation correction and its influence on the tracking and measurement accuracy of the system are analyzed. For the case of 89 掳elevation angle and azimuth pitch angle deviation of 3 mrad, the Secant compensation correction method points to the existence of 6 759.2 "azimuth error and 63.5" pitch error. The new reasoning method is beneficial to the high precision tracking and measurement of spatial targets in polar coordinate framework, especially the tracking performance of high elevation angle, the improvement of pointing accuracy and the utilization ratio of tracking data.
【作者单位】： 中国卫星海上测控部飞行器海上测量与控制联合实验室;
【基金】：国家自然科学基金项目(61403421)
【分类号】：V556
，
本文编号：2500713
[Abstract]:This paper analyzes and reviews the origin and limitation of the correction method of angular deviation cutting compensation for radio radar tracking and measuring system under the current azimuth pitch polar coordinate framework in radar engineering, and puts forward the definition of tracking pointing coordinate system. Based on the principle of coordinate transformation, a simple and feasible method for deducing accurate correction of deviation without singularity is presented, and the equivalence between the new method and the general method based on stereo geometry is proved. At the same time, the typical application of the new method in radar shafting deviation correction and its influence on the tracking and measurement accuracy of the system are analyzed. For the case of 89 掳elevation angle and azimuth pitch angle deviation of 3 mrad, the Secant compensation correction method points to the existence of 6 759.2 "azimuth error and 63.5" pitch error. The new reasoning method is beneficial to the high precision tracking and measurement of spatial targets in polar coordinate framework, especially the tracking performance of high elevation angle, the improvement of pointing accuracy and the utilization ratio of tracking data.
【作者单位】： 中国卫星海上测控部飞行器海上测量与控制联合实验室;
【基金】：国家自然科学基金项目(61403421)
【分类号】：V556
，
本文编号：2500713
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