Space targets are mainly divided into spacecraft and space debris working in orbit. Important near-Earth objects can be accurately detected and tracked, and their threats to the planet security can be predicted by monitoring their orbit and volume parameters. Optical telescope is one of the most important astronomical telescopes, science-grade image sensors were used to collects optical information about stars. In modern times, with the rapid development of semiconductor technology, CMOS (Complementary Metal Oxide Semiconductor) image sensor has high data transmission rate and high integration, CMOS image sensors have become the main optical imaging image sensors used in astronomical telescopes. In this presentation, the imaging principle and firmware design of a scientific CMOS camera named PX400 are introduced and tested. The PX400 uses a scientific image sensor called GSENSE400BSI (hereinafter referred to as GS400) produced by GPIXEL, which has a high data readout rate and a variety of operating modes.
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