红外焦平面阵列性能参数测试系统

Test System for Measuring Characteristic Parameters of IRFPA

基于虚拟仪器技术开发了红外焦平面阵列(IRFPA)性能参数测试系统。该系统可采集IRFPA动态数据,得到IRFPA在不同情况下的各像元响应情况,从而测试计算出IRFPA主要性能参数,进行器件的评估;对采集数据的统计分析,能准确判断盲元位置和数量,定量地测量非均匀性,以测试分析结果为依据进行红外成像图像的补偿和校准,得到了清晰的成像效果。

Testing of infrared focal panel array is the basis of IRFPA evaluation and infrared image processing. A test system for measuring characteristic parameters of IRFPA is established based on virtual instrumental technology. Both the hardware and software of the test system are developed. The response levels of IRFPA pixels are acquired by the system. The main characteristic parameters of IRFPA are calculated based on the definition and measuring data. The performance of IRFPA are evaluated by the system. Through statistic analysis, the location and quantities of non-effective pixels can be identified accurately. Also the nouniformity correction coefficient of all pixels can be worked out. Vivid infrared images have been achieved through non-effective pixels compensation and nouniformity correction based on the testing and statistic analysis results.