激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2014年
5期
516-521
,共6页
樊宏杰%刘艳芳%刘连伟%姚梅%许振领%杨淼淼
樊宏傑%劉豔芳%劉連偉%姚梅%許振領%楊淼淼
번굉걸%류염방%류련위%요매%허진령%양묘묘
红外辐射特性%辐射特性测量%定标
紅外輻射特性%輻射特性測量%定標
홍외복사특성%복사특성측량%정표
infrared radiation characteristic%radiation characteristic measurement%calibration
阐述了定标工作在目标红外辐射特性测量中的重要作用。分别就调焦类成像设备和非调焦类成像设备的定标方法进行了理论分析,针对不同定标方法的优缺点进行了说明,定标时通常采用0米定标,方便且可同时进行所有像元定标。对目标特性测量时定标温度的选择作了分析,得出结论:定标间隔不变时,定标误差随定标温度呈“W”型规律变化,当定标温度分布于测量温度两侧时,误差有限,因此定标温度通常选择在目标等效黑体温度两侧,且定标温度间隔越小辐射特性测量精度越高。
闡述瞭定標工作在目標紅外輻射特性測量中的重要作用。分彆就調焦類成像設備和非調焦類成像設備的定標方法進行瞭理論分析,針對不同定標方法的優缺點進行瞭說明,定標時通常採用0米定標,方便且可同時進行所有像元定標。對目標特性測量時定標溫度的選擇作瞭分析,得齣結論:定標間隔不變時,定標誤差隨定標溫度呈“W”型規律變化,噹定標溫度分佈于測量溫度兩側時,誤差有限,因此定標溫度通常選擇在目標等效黑體溫度兩側,且定標溫度間隔越小輻射特性測量精度越高。
천술료정표공작재목표홍외복사특성측량중적중요작용。분별취조초류성상설비화비조초류성상설비적정표방법진행료이론분석,침대불동정표방법적우결점진행료설명,정표시통상채용0미정표,방편차가동시진행소유상원정표。대목표특성측량시정표온도적선택작료분석,득출결론:정표간격불변시,정표오차수정표온도정“W”형규률변화,당정표온도분포우측량온도량측시,오차유한,인차정표온도통상선택재목표등효흑체온도량측,차정표온도간격월소복사특성측량정도월고。
Calibration plays an important role in infrared characteristic measurement.Calibration method of fixed-focus imaging sensor and adjustable focus imaging sensor are theoretically analyzed.Merits and demerits of different calibra-tion methods are introduced.Zero meter calibration method is usually selected,it is convenient and can calibrate all pixels.The selection of calibration temperature is analyzed in target IR characteristic measurement,analysis results show that:when calibration temperature interval is constant,the calibration error changes along"W"shape with cali-bration temperature;The calibration error is limited when calibration temperature distributes both sides of measurement temperature,so calibration temperature is selected on both sides of equivalent blackbody temperature,and calibration error is smaller when calibration temperature interval is smaller.