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Detection of debris spacecraft in orbit on the basis of an instrument embarked on board a satellite
Detection of debris spacecraft in orbit on the basis of an instrument embarked on board a satellite
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机译:根据搭载在卫星上的仪器探测在轨的碎片航天器
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摘要
Passive optical detection device embarked on a satellite for detection, sizing and velocity determination of space debris passing close to the satellite. The device comprises two CCD cameras with means for modulating received light intensity over time and processing computer for determining size, position and velocity of debris particles from the received images. Determination of particle position is by triangulation from the two camera images. Two photo-intensifier tubes are used which act as a rapid shutter. The gain of the photo- intensifier is varied by changing the voltage of the photo-cathode, with high frequency modulation of the order of several kHz.
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