公开(公告)号：EP1332347A4

公开(公告)日：2006-05-03

申请号：EP01979984

申请日：2001-10-11

申请人： LITTON SYSTEMS INC

发明人： WALMSLEY CHARLES ,  SUTTON MARCUS

IPC分类号： G01J5/06 ,  G01J5/24 ,  G01J5/62 ,  H04N5/217 ,  H04N5/33

CPC分类号： H04N5/33 ,  G01J5/06 ,  G01J5/24 ,  G01J5/62 ,  H04N5/2176

摘要： A system and method for generating signals representing infrared radiation include the capability to provide a reference scene (1008) and an actual scene (1016) to a plurality of infrared detector elements arranged in a two-dimensional array, the detector elements being biased so that they produce a signal even when no infrared radiation is impinging thereon (1004). The system and method further include the capability to receive a first signal representing the reference scene from one of the detector elements (1012), receive a second signal representing the actual scene from the detector element, and remove the bias signal from the second signal (1020). The system and method also include the capability to attenuate the remaining second signal (1024), integrate the attenuated signal (1028), and sample the integrated signal (1032).