关键词: 有源相控阵雷达, 热变形预测, 温度测点优化, 电性能补偿

Abstract: At present， most of the studies try to predict the thermal deformations of array planes of APARs based on software simulation method， but there was a certain deviation between the simulation results and the real situations. Therefore， the modeling theory of thermal deformation predictions for APARs was proposed. The thermal deformations and temperature changes of the array planes were obtained by experimental measurements. The temperature measurement points were optimized based on fuzzy clustering combined with grey correlation algorithm， the prediction models of thermal deformations in each direction were established. The experimental results show that the model has high prediction accuracy and robustness， the accurate thermal deformation prediction for array planes may be predicted.

Key words: active phased array radar（APAR）, thermal deformation prediction, temperature measurement point optimization, electrical performance compensation