Acquisition performance of LAPAN-A3/IPB multispectral imager in real-time mode of operation

[摘要] LAPAN-A3/IPB satellite was launched in June 2016 and its multispectral imager has been producing Indonesian coverage images. In order to improve its support for remote sensing application, the imager should produce images with high quality and quantity. To improve the quantity of LAPAN-A3/IPB multispectral image captured, image acquisition could be executed in real-time mode from LAPAN ground station in Bogor when the satellite passes west Indonesia region. This research analyses the performance of LAPAN-A3/IPB multispectral imager acquisition in real-time mode, in terms of image quality and quantity, under assumption of several on-board and ground segment limitations. Results show that with real-time operation mode, LAPAN-A3/IPB multispectral imager could produce twice as much as image coverage compare to recorded mode. However, the images produced in real-time mode will have slightly degraded quality due to image compression process involved. Based on several analyses that have been done in this research, it is recommended to use real-time acquisition mode whenever it possible, unless for some circumstances that strictly not allow any quality degradation of the images produced.

[发布机构] Satellite Technology Center, National Institute of Aeronautics and Space (LAPAN, Indonesia^1

[效力级别] 生态环境科学

[关键词] Acquisition performance;Compression process;Multispectral images;Quality degradation;Real time acquisition;Real-time operation mode;Remote sensing applications;Research analysis