【摘要】 针对焦平面器件现有非均匀性校正算法在实际应用中存在的问题,结合探测器的非线性模型对两点校正算法进行改进,提出了基于探测元响应非线性的两点校正算法,该算法是在最小二乘意义上的曲线拟合。通过将该算法与传统的两点校正法和四点校正法在残留非均匀性和校正速度两个方面的比较,说明该方法具有校正精度高、动态范围大、易于工程实时实现等优点。更多还原

【Abstract】 Based on the analysis of the existing problems of ordinary nonuniformity correction algorithms for IRFPA,a method of two-point correction for IRFPA with nonlinear response is proposed.The algorithm is curve fitting based on least square approximation.Compared with the traditional two-points correction and four-points correction,this method has perfect performance of high precision,broad dynamic range and easy to realize in engineering.更多还原