IQ-separated baseband structure for high-speedsatellite digital communication

doi:10.16511/j.cnki.qhdxxb.2018.22.031

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Abstract Increased satellite digital communication rates require larger channel bandwidths which require analog-digital converters (ADCs) with higher sampling rates in the receiver. The in-phase/quadrature (IQ) data have to be sampled separately for ultra-high sampling rates, which requires IQ-separated processing. A baseband structure developed here for IQ-separated processing uses redesigned pilot arrays, an adjusted processing order and modified algorithms that gives separate frequency error estimates and timing synchronization on IQ data. Simulations show that this structure is fast with a bit-error-rate only 2 dB higher than the traditional structure.

Keywords satellite communication baseband structure in-phase/quadrature (IQ)-separated process frequency error estimation timing synchronization

Issue Date: 19 September 2018

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	PEI Yukui
	HAO Haoran
	SU Li

Cite this article:

PEI Yukui,HAO Haoran,SU Li. IQ-separated baseband structure for high-speedsatellite digital communication[J]. Journal of Tsinghua University(Science and Technology), 2018, 58(9): 827-832.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2018.22.031 OR http://jst.tsinghuajournals.com/EN/Y2018/V58/I9/827

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