卫星传感器时空覆盖能力评估与优选组合系统设计与实现

Design and Implementation of Space-time Coverage Capability Evaluation and Optimum Combination Observation System for Satellite Sensor

卫星传感器是重要的对地观测手段之一。针对如何有效选取、组合多卫星传感器以满足特定的观测任务需求这一问题,提出了基于时空覆盖范围最大化原则的卫星传感器覆盖能力评估方法和传感器优选组合方法。设计并实现了卫星传感器覆盖能力评估与优选组合系统,实现了卫星传感器建模、观测主题定义、传感器对地覆盖能力评估与传感器优选组合观测。最后,以金沙江流域下游紧急降雨观测任务为例,验证了系统的实用性。

Satellite sensor is one of the most important means of earth observation. To effectively select and combine muhi-satellite sensors to meet the needs of specific observation tasks, a satellite sensor coverage assessment method based on the principle of maximizing spatio-temporal coverage is proposed. This method selects the sensor with the largest spatial coverage in each observation period to complete the optimum combination of sensors. The satellite sensor coverage evaluation and optimal combination observation system is designed and implemented.The satellite sensor modeling,the definition of the observation subject ,the evaluation of the sensor coverage ability and the sensor optimal combination were achieved. Finally, with an experiment of emergency rainfall observation in the lower reaches of the Jinsha River Basin,the practicability of the system was verified.