An Improved Measuring Method of Imaging Satellite Sensor's Observation Capability

Abstract

The invention provides an improved method for measuring the observation capability of imaging satellite sensors, the steps are as follows: acquire a plurality of imaging satellite sensors with observation tasks, establish an imaging satellite sensor combination; acquire the attribute parameters of a certain imaging satellite sensor in the imaging satellite sensor combination, Calculate the static capability evaluation value of the imaging satellite sensor; according to the attribute parameters of the observation task, the moment when the imaging satellite sensor reaches the visible area of ​​the observation task, the effective coverage area in the observation task area, and the estimated cloud coverage of the image area when the image is acquired Calculate the dynamic capability evaluation value at a high rate; determine the weight of the static capability and dynamic capability, and obtain the comprehensive evaluation value through weighted calculation based on the static capability evaluation value and the dynamic capability evaluation value; separately calculate the comprehensive evaluation value of other imaging satellite sensors in the imaging satellite sensor combination. Evaluation value: Rank the observation capabilities of imaging satellite sensors based on the calculated comprehensive evaluation value.

Description

technical field [0001] The invention relates to the field of smart earth observation technology, in particular to an improved method for measuring the observation capability of imaging satellite sensors. Background technique [0002] Floods are one of the most frequent and severe disasters in the world. In the face of extremely destructive flood disasters, traditional flood mapping methods based on ground surveys and aerial monitoring are time-consuming, expensive, and difficult to apply in severe weather. In contrast, satellite sensors have a series of advantages such as short revisit period, wide coverage, strong timeliness, and will not be affected by the ground monitoring environment, making them play a huge role in flood disasters. . With the development of aerospace technology, the number of satellites in orbit in the sky is gradually increasing. In order to make reasonable use of satellite sensor resources to monitor disasters, it is very important to measure and ev...

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Problems solved by technology

Patent CN103093098B proposes a quantitative evaluation method for the dynamic observation ability of satellite optical sensors. This method evaluates the observation ability of optical sensors from the perspective of task adaptability, but this method ignores the static and dynamic capabilities of the sensor. In addition, this method is mainly oriented to optical sensors and lacks the evaluation of radar sensors, so it is difficult to adapt to flood disaster observation tasks

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