Using spectral emissivity measurement equipment to detect the emissivity of infrared stealth coatings is an impor-tant means of monitoring the status of aircraft infrared stealth coatings.During the calibration cycle of the measuring equip-ment,due to factors such as usage environment,usage frequency,usage method and so on,the condition of the equipment occasionally becomes worse,and the measured values deviate from the reference value which poses a certain risk for timely detection of infrared stealth coating defects and may affect the overall infrared stealth characteristics of the aircraft.To ad-dress the issue of measurement deviation during the calibration cycle,a Gramian Angular Field(GAF)and Parallel Convo-lutional Neural Network(PCNN)calibration status prediction model is established.By collecting one-dimensional time-se-ries data from the device and feeding it into the GAF-PCNN mode,a prediction model for the calibration status of infrared emissivity measurement equipment is trained through deep learning.The experiment shows that the average recognition ac-curacy of the calibration state prediction model reaches 95％,and the convergence speed is fast and stable,which can be applied to equipment calibration state prediction,prompting early calibration or use beyond the calibration cycle.While en-suring good equipment condition,it reduces equipment calibration activities and improves guarantee efficiency.
关键词
格拉姆角场/并行卷积神经网络/红外发射率/预测/检定状态
Key words
Gramian Angular Field(GAF)/Parallel Convolutional Neural Network(PCNN)/infrared emissivity/prediction/calibration status
维普
万方数据