| 摘要: |
| 船载某C频段统一测控系统（UCB）因为光轴变化，使得坞内标定的角度零值、光机偏差等轴系误差修正参数不能准确校正设备的光轴指向偏差，而以光轴为基准放球标定的光电偏差修正参数无法使用。针对这个难题，在深入分析雷达轴系误差修正原理及参数标定方法的基础上，提出了基于测星数据动态标定雷达轴系误差参数、基于脉冲雷达电轴推算UCB光电偏差参数的替代方法，给出了相关数学模型，并利用实测数据进行了验算分析。试验结果表明，替代方法标定的参数准确合理，误差修正精度高，有效提升了数据处理精度。 |
| 关键词: 船载雷达 光电偏差 光机偏差 参数标定 轴系参数 |
| DOI： |
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| 基金项目: |
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| Shaft parameters calibration of a ship-borne radar |
| LI Huifen,DAI Zhengxu,XIANG Jie |
| () |
| Abstract: |
| Due to the variation of optical axis of ship-borne unified C-band TT&C system（UCB）,the pointing error of optical axis cannot be corrected accurately by the radar’s zero position of the calibration at the dock,the axis error such as the optical-mechanical axis non-parallelism,and the error modifying coefficients of electric axis calibrated with optic axis are unavailable.To solve above problem,through analyzing calibration and correction method of radar axis error,an alterative method is proposed to calibrate the radar shafting error dynamically by using theodolite,along with electrical axis to get optical-electrical axis non-parallelism parameter of UCB.The corresponding model is given and the processing results of real data indicate that the parameters marked by alternative method are accurate and reasonable,and the accuracy of the data is improved effectively. |
| Key words: ship-borne radar optical-electrical axis non-parallelism optical-mechanical axis non-parallelism parameter calibration shaft parameter |
