Efficient superspeed effective load data transmission system for remote sensing satellite
A data transmission system and payload technology, applied in the field of near-Earth remote sensing satellites, to achieve the effect of improving link efficiency and data transmission capabilities
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] In principle, the present invention can be used in satellite payload data transmission systems of any frequency band. Since existing satellite payload data transmission systems commonly use the X-band allocated by the ITU, specific values are given for the X-band situation.
[0021] The invention provides a high-efficiency ultra-high-speed payload data transmission system for remote sensing satellites, which can efficiently realize the ultra-high-speed transmission code rate of Gbps order. The system comprehensively adopts amplitude phase shift keying (APSK) high-order modulation technology, variable code rate low-density parity-check code (LDPC) channel coding technology, orthogonal frequency division multiplexing (OFDM) technology and automatic tracking target beam Technology, focusing on the efficient integration of individual technologies, and re...
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Abstract
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