中文摘要：

基于声光可调谐滤波器（AOTF）的高光谱成像光谱仪不同于传统的成像光谱仪，它利用声光调制的分光原理，在像面上得到空间信息和任意一个波段的光谱信息。但由于其分光原理和分光器件自身性能的特殊性，辐射定标的方法尚不成熟，辐射定标技术的精度和长期稳定性不能满足遥感应用的更高要求。结合AOTF高光谱成像光谱仪自身的性能和对辐射定标的要求，提出了基于探测器的定标方法和改进的数据处理算法，并对辐射定标的精度进行了分析。实验结果表明：定标后的成像光谱仪能够真实地反映地物目标的信息，有效地提高了成像光谱仪的信息定量化水平。

英文摘要：

Different from traditional imaging spectrometer, Acousto-optic Tunable Filter （AOTF） hyperspectral imaging spectrometer is based on the principle of acoustooptic modulation, and it acquires space and spectral information of each band on image plane. Because of its light splitting principle and its particularity of device performance, radiometric calibration method is not sophisticated yet, and the precision and long-term stability of radiometric calibration technology can not meet the need of the remote sensing application. By combining AOTF hyperspectral imaging spectrometer＇s characteristics and its requirement on radiometric calibration, a calibration method was put forward based on the detector and data pre-process algorithm was improved, and the precision of radiometric calibration was analyzed. Experimental result shows that the calibrated imaging spectrometer can truthfully reflect the information of ground object, and effectively improve the information quantification standard of imaging spectrometer.