随着遥感器数量和种类的增加以及对于遥感器定标精度要求的提高,定标任务加重。高频次定标能够降低定标误差,提高定量化水平。但依托少量定标场地的在轨定 标模式已经无法满足业务应用的时效性和功能性需求。针对高频次、高时效、多时相的多场地在轨定标需求,开发了智能化定标任务规划系统。依托国内核心场 和国外数字场建立了全球定标场网信息数据库,重点解决了场地特征、卫星及载荷特性、空间和时间上的匹配问题。通过场地及卫星属性数字化,把定标规划需要 考虑的复杂因素转化为匹配计算的规则和计算机可识别逻辑。可以实现全球范围内多场地定标任务规划,从而提高定标工作效率,达到高频次定标的目的。

With the increase of the number and variety of remote sensors and the accuracy requirements for the calibration of remote sensors, the task of calibration is aggravated. High-frequency calibration can reduce the error of calibration and improve the level of quantification. But on-orbit calibration mode based on a small number of calibration sites has been unable to meet the timeliness and functional requirements of business applications. For the high-frequency, high-efficiency, multi-time and multi-site calibration requirements, an intelligentized calibration task planning system was developed. Relying on the domestic core site and foreign digital site, a global calibration sited information database was established to solve the matching problem of the site characteristics, satellite and load characteristics, space and time. Through the digitization of site and satellite attributes, the complicated factors that need to be considered in the calibration planning are transformed into the rules of matching calculation and the computer-readable logic. So it is possible to achieve multi-site calibration task planning on a global scale so as to improve the efficiency of calibration and achieve the goal of high-frequency calibration.