“高分四号”卫星观测能力与应用前景分析

发布时间：2019-04-23 19:10

【摘要】："高分四号"卫星是中国高分辨率对地观测系统重大专项工程中首颗地球同步轨道遥感卫星,也是目前世界上地球同步轨道上第一颗高分辨率遥感卫星,它具有较高空间分辨率、极高时间分辨率、多种谱段选择、广阔的观测范围等特点。为使"高分四号"卫星充分发挥观测能力,成为灾害监测以及防灾减灾的有效工具,文章对应典型遥感应用,总结归纳出了五种观测模式,分别是凝视模式、跟踪模式、巡航模式、签到模式、夜间模式,并分析给出各种模式下相应的观测策略。文中还以现有国产遥感卫星为例,讨论了影响"高分四号"卫星应用的两种重要因素,即数据连续性和数据稳定性,其中针对巡航模式对数据连续性的潜在影响提出了"高分四号"卫星在轨使用建议,针对数据稳定性提出了一种评价模型。该文对于有关方面应对多种观测需求、合理使用"高分四号"卫星在轨观测能力具有一定参考价值。
[Abstract]:The "High part IV" satellite is the first geosynchronous orbit remote sensing satellite in a major special project of China's high-resolution Earth observation system, and is also the first high-resolution remote sensing satellite in the world's geosynchronous orbit at present. It has the characteristics of high spatial resolution, extremely high temporal resolution, multi-spectral selection, wide observation range and so on. In order to give full play to the observation ability of the "High Division IV" satellite and become an effective tool for disaster monitoring and disaster prevention and mitigation, the paper summarizes and summarizes five observation modes, namely, gaze mode and tracking mode, corresponding to typical remote sensing applications. Cruise mode, check-in mode, night mode, and analysis of the corresponding observation strategies under various modes. Taking the existing domestic remote sensing satellite as an example, this paper discusses two important factors that affect the application of the "High Division IV" satellite, that is, data continuity and data stability. In view of the potential impact of cruise mode on data continuity, this paper puts forward some suggestions for the use of the "High Division IV" satellite in orbit, and puts forward an evaluation model for the stability of the data. This paper has some reference value for the relevant parties to meet the needs of many kinds of observations and to make rational use of the on-orbit observation capability of the "High Division IV" satellite.
【作者单位】：北京空间机电研究所;
【基金】：高分辨率对地观测系统重大专项(50-Y20A07-0508-15/16)
【分类号】：P237

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