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多角度航空遥感飞行试验是黑河试验的重要组成部分,在介绍了机载红外广角双模式成像仪(Wide-angle Infrared Dual-mode line/area Array Scanner,WiDAS)的研制背景、硬件构架和多角度成像原理之后,结合其数据特点,详细描述了WiDAS数据处理流程并设计了WiDAS系统的红外产品体系。最后,用地面同步测量数据对定标后的WiDAS辐射亮温进行了验证,并从飞行数据中提取了黑河试验区6种典型地物的辐射亮温随观测角度的变化情况。
Multi-angle aerial remote sensing flight test is an important part of Heihe test. After introducing the research background, hardware architecture and multi-angle of Wide-angle Infrared Dual-mode line / area Array Scanner (WiDAS) After the principle of imaging, combined with the characteristics of its data, a detailed description of the WiDAS data processing flow and design of WiDAS system infrared product system. Finally, the ground-based synchronic data was used to verify the brightness temperature of the calibrated WiDAS radiation and the variation of the radiated brightness temperature with the observed angle of six typical landforms in Heihe experimental area was extracted from the flight data.