数字化红外焦平面噪声分析研究

摘要

Based on a self-designed TDI linear infrared focal plane digitization readout circuit,a infrared focal plane test system with driving IRFPA device and collecting digital data function is designed.Noise analysis of linear digitization readout circuit electric injection method,medium wave infrared focal plane and long wave infrared focal plane is done;NETD that is important for infrared detector is also analyzed.The influences of integration time,focal plane array injection region and bias voltage on the infrared detection performance are discussed respectively.%基于自行设计的TDI线列红外焦平面数字化读出电路,设计一款带有驱动IRFPA器件和数字化数据采集功能的红外焦平面测试系统,分别进行数字化线列读出电路电注入方式、中波红外焦平面和长波红外焦平面的噪声分析以及红外探测器比较关心的NETD的分析,并对积分时间、焦平面阵列注入区和偏置电压对红外探测性能的影响做了区分论证.