基于灰色关联分析的雷达外测数据精度评估方法

测量精度是评估雷达是否满足试验要求的关键指标.首先针对少量的雷达外测定轨评估数据,结合灰色系统理论提出一种基于改进灰色关联分析理论的方法,研究雷达外测数据与精轨数据的关联性;而后根据半监督学习方法,对灰色关联度进行聚合聚类,构建可靠的精度评估方法;最后将有标记的外测数据结合无标记的"天平"一号卫星测量数据进行评估.结果表明,该方法符合任务需求,可为快速评估雷达测量数据的精度提供参考.

Accuracy Evaluation Method of Radar Measurement Data Based on Grey Correlation Analysis

The measurement accuracy is the key index to evaluate whether the radar meets the test requirements. Firstly, aiming at a small amount of radar orbit evaluation data, this paper proposes a method based on the improved grey correlation analysis theory, to study the correlation between radar measurement data and accurate orbit data; Secondly, according to the semi-supervised learning method, using agglomerative clustering based on grey correlation degree, to construct a reliable evaluation method;Finally, to evaluate the measurement data with labels and the measurement data of TP-1 satellite without labels, the results show that conclusion of the method meets the requirements of the task. It provides a quick accuracy evaluation method for the effect of radar measurement data.