机载干涉仪阵列地面静态标校系统研究

Research on static ground Calibration System of Airborne interferometer array

机载干涉仪阵列的标校工作是保证其测向精度的重要环节,标校时需要将干涉仪阵列测得的信号源方位角和俯仰角与准确值进行比对,并计算测向误差进而加以校准。针对目前机载干涉仪阵列标校所存在的一些问题,本文研究了基于电子全站仪作为坐标真值获取手段的地面静态标校方法。具体介绍了标校系统原理、标校流程以及数学计算模型,试验表明该标校方案可行,数据处理快速可靠,满足实际应用的技术要求。

The calibration of airborne interferometer array is an indispensable part to ensure the direction finding precision. When calibrating the interferometer, a comparison between the Measurements and accurate values is required, and a calibration based on the measurement errors is also needed. Considering the fact that there are still some unsolved problems in the calibration of airborne interferometer array, this paper analyzes the ground static calibration methods in the light of the electronic total station as the coordinate to obtain the true value. Specifically, this paper introduces the theories of calibration system, calibration processes and mathematical models. The tests prove that this calibration method is feasible and the data processing is fast and reliable, which can meet the technical requirements of practical application.