遥感卫星光电传感器参数

The Optical Parameters of Remote Sensing Satellite

自 1 990年以来 ,人类发射了多颗性能良好的遥感卫星 ,为了充分利用不同传感器特有的优势 ,需要对来自不同传感器的数据进行融合 ,其关键是提高融合数据之间的关联性和依赖性。如果全球能有标准一致的传感器参数 ,便可使遥感信息得到最大程度的利用。从与空间分辨率、辐射分辨率、光谱分辨率和时间分辨率有关的参数等几个方面探讨了遥感卫星光电传感器的参数。

Since America launched the first real earth observing satellite in 1972, and with the wide use of the data received from it in the fields of monitor and all kinds of resource management, the research results showed that the performance of the observation system need to be improved. Data users want the remote data to have higher spatial resolution, radiation resolution, spectrum resolution and temporal resolution. Human being has launched a number of remote sensing satellites with improved capabilities since 1990. Because they carries different types of sensors, in order to make full use of various sensors' advantage, the fusion of data from various sensors should be done and the key point is to increase the relevance and dependence of the fusion. Of all parameters listed in the paper, the main factors which affect the relevance and dependence of the fusion are instantaneous geometry field of view (IGFOV), radiate accuracy instantaneous field of view (RAIFOV), center wave length, band width, radiate accuracy and repeat period. If the sensor parameters are standardized globally, the information can be maximal used. The paper discussed the parameters of remote sensing satellites in terms of spatial, radiometric, spectral and temporal resolution.