关键词: 南极, 航摄仪, CityMapper-2, 航空摄影, 检校

Abstract: Currently,China primarily utilizes satellite remote sensing and unmanned aerial vehicles (UAVs)to acquire image data in Antarctic regions.While satellite remote sensing offers high efficiency,its image resolution remains relatively low.Conversely,UAV-collected imagery achieves higher precision but suffers from lower operational efficiency and limited accessibility to many areas.These constraints have resulted in low geographic information digitization levels and inadequate high-resolution image coverage in China's Antarctic operations.To enhance both efficiency and accuracy in image data acquisition,during China's 40th Antarctic expedition,an aerial camera was successfully transported and installed on the “Snow Eagle 601”fixed-wing aircraft.The acquisition of high-precision calibration files plays a crucial role in ensuring the accuracy and validity of image data captured by this aerial camera in Antarctica,significantly impacting the quality of final data products.This study focuses on processing calibration data collected by the aerial camera at different flight altitudes from China's Zhongshan Station through distinct methodologies employing control points and precise ephemeris.By conducting accuracy verification and comparative analysis of results obtained from different processing approaches,reliable high-precision calibration files will be established.These outcomes will provide essential accuracy assurance for Antarctic aerial photography missions and serve as critical data support and theoretical foundation for future development of standardized calibration fields.

Key words: Antarctic, aerial camera, CityMapper-2, aerial photograph, calibration