TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
Online ISSN : 2189-4205
Print ISSN : 0549-3811
ISSN-L : 0549-3811
Development of On-board Image Processing Algorithm to Detect Lunar Impact Flashes for DELPHINUS
Masahiro FUJIWARASatoshi IKARIHirotaka KONDORyota FUSEYosuke MASUDAShinsuke ABEMasahisa YANAGISAWAKenji YAMAMOTOHajime YANORyu FUNASE
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JOURNALS OPEN ACCESS

2020 Volume 63 Issue 6 Pages 265-271

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Abstract

DELPHINUS is a camera system mounted on EQUULEUS, which is planned to be launched using NASA’s Space Launch System EM-1 in 2021. DELPHINUS aims to investigate size distribution, influx ratio, and daily variation of meteoroids in the cislunar space through observations of lunar impact flashes (LIFs) from the far side of the moon. DELPHINUS will observe the moon's surface with the 60-fps camera modules to capture the flashes that are short duration phenomena. All image data cannot be downlinked due to constraints in memory size and communication capability. Therefore, an on-board image processing algorithm was developed to reduce downlinked data size by extracting only necessary pixel data including LIFs. Three experiments using three simulators were demonstrated to verify the real-time processing performance and detection capability. This paper reports the details of the proposed algorithm and the verification results.

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© 2020 The Japan Society for Aeronautical and Space Sciences
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