基于环境温度的红外焦平面阵列非均匀性校正.doc

文档介绍：第29卷第1期
2010年2月

红外与毫米波学报


,
February,2010
文章编号:1001—9014(2010)01—0049一04
基于环境温度的红外焦平面阵列非均匀性校正
白俊奇,

陈钱,

钱惟贤,

屈惠明,

王娴雅, 左

超
(南京理工大学近程高速目标探测技术国防重点学科实验室,江苏
南京210094)
摘要:分析了环境变化对红外焦平面阵列信号输出的影响,提出了一种基于环境温度和目标温度的非均匀性校正
,根据最小二乘原理建立了焦平面探测单元的指数响应模型.
最后,,算法能在较宽的环境温度范围,准确预测焦平面探测单元的响应,
有效提高了非均匀性校正的精度.
关键词:红外焦平面阵列;非均匀性校正;环境温度;最小二乘
中图分类号:
文献标识码:A
NONl小衄oRⅣⅡTY

CoRRECTIoN
FoR胂RARED FoCAL PLANE
ARRAYS BASED ON
ENⅥRONNⅡ￡NTAL
TENⅡ’ERATURE
BAI

Jun-Qi,

CHEN

Qian,QIAN Wei—Xian,QU Hui—Ming,WANG

Xian・Ya,

ZUO Chao
(Ministerial Key Laboratory of JGMT,Nanjing University ofScience and Technology,N耵ljing
210094,China)
Abstract:Environmental influence


the signal output of infrared foeal plane

array(IRFPA)was

nonunifor-
mity
correction(NUC)algorithm based
environmental
and target temperatures
,the original
signal
captured by UL0101 l stating infrared exponential
response
model
Was established according
the
pdndpie of least ,nonuniformity Was corrected by this

results show that the
proposed
al-
Key words:infrared focal plane array(IRFPA);nonuniformity correction(NUC);environmental temperature;least文畔
引言
受探测器材料、制造工艺等因素的影响,红外焦
平