航天遥感器的辐射度精度分析

摘要

辐射度精度是评价航天光学遥感器辐射度性能的一个重要指标．针对测量的目标辐射度与目标绝对辐射度之间的差异，建立一种航天遥感器的辐射度精度公式，对航天光学遥感器的辐射度性能进行分析．在辐射度精度的分析过程中，分析了星上定标源的辐射、偏振、杂散辐射、谱段外响应和波长漂移等因素对遥感器辐射度的影响．%Presents the radiometric accuracy formula used to evaluate the performance of space optical remote sensor, and the computation of the radiance of onboard calibration targets based on the design parameters of the instrument and the calculated effects of polarization, stray radiation, out-of-band response, and wavelength shifts on radiometric accuracy based on the magnitude of each of these contributors.