Aiming at the non-uniformity slow change with time and environment conditions and the correction error caused by the nonlinearity response of every detector in infrared focal plane arrays (IRFPA) in engineering using
a self-adaptive non-uniformity correction algorithm for IRFPA with nonlinear response is proposed. The algorithm based on nonlinear response of detector and least mean-square error criteria of correction error can self-adaptively eliminate temperature drift of response parameters. The initial values are optimized to achieve the quicker constringency ratio and the higher precision of algorithm. According to the principle of algorithm
the mathematical model is established and experimental results are given out. The results show the superiority of algorithm.