【摘要】 定标校正法是目前人们实际使用较多的一种红外焦平面阵列非均匀性校正方法。该方法采用的算法简单,易于用硬件实时实现,但也存在校正精度低的缺点,针对这一不足,首先通过实验得到了红外焦平面探测器的实际非线性响应曲线,然后在此基础上进一步分析了定标点的数量及选取对红外焦平面阵列非均匀性校正精度的影响,为提高定标校正法的校正精度提供了依据。更多还原

【Abstract】 Calibration method is a correction method which is frequently used to correct the nonuniformity of infrared focal plane arrays(IRFPA) at present.The algorithm of this method is simple and can be implemented with hardware easily.However,this method also has a shortage of low correction precision.For this,the actual nonlinear response curves of an IRFPA detector is obtained experimentally. Then,the influence of the number and selection of the calibration points on the nonuniformity correction precision of the IRFPA detector is further analyzed.This work has laid the basis for the improvement of the correction precision of the calibration method.更多还原