数字化红外焦平面技术是从探测器起所有信号处理都在数字域完成的红外热成像技术, 是目前国际上最先进的新一代红外焦平面技术。通过将模拟 -数字转换器(ADC)集成到读出电路中实现数字读出, 配合数字传输和数字图像处理形成数字化红外焦平面技术。通过中波 640×512数字化红外焦平面探测器读出电路、成像组件以及数字化红外焦平面热像仪的设计和测试, 表明数字化红外焦平面技术具有接口简单、高抗干扰、高通道隔离度、低读出噪声、高传输带宽、高线性度、高稳定性等特点, 是红外热成像系统的技术发展趋势。

Digital IRFPA technology is a thermal IR imaging technology which signal from detector is processed in digital domain, and it is the most advanced IRFPA technology. It integrates analog-to-digital converter (ADC) on readout integrated circuit (ROIC) to realize digital signal read out, while the digital signal transmission and digital image processing are also utilized to form the Digital IRFPA technology. The digital IRFPA ROIC, digital imaging module and digital IRFPA thermal imager of MWIR 640×512 are designed and tested, and the measurement results indicate the Digital IRFPA technology has some positive features, such as simple interface, good resistance to interference, high channel isolation, low readout noise, wide transmission bandwidth, high linearity, high stability and so on. The Digital IRFPA technology is the developing trend of thermal IR imaging system.