| 全数字宽带接收机的并行结构 |
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| 引用本文： | 陈大夫,朱江等. 全数字宽带接收机的并行结构[J]. 飞行器测控学报, 2003, 22(1): 54-59 |
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| 作者姓名： | 陈大夫 朱江等 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南长沙,410073;国防科技大学电子科学与工程学院,湖南长沙,410073;国防科技大学电子科学与工程学院,湖南长沙,410073;国防科技大学电子科学与工程学院,湖南长沙,410073 |
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| 摘 要： | 介绍了一种FFT并行结构的全数字宽带接收机,接收机中包括载波恢复,定时恢复和匹配滤波器三个主要功能部分。其特点是信号处理速率比输入Nyquist采样速率低得多,而且其中的匹配滤波器和定时校正恢复可以在频域上有效地实现,这种结构特别适合于卫星通信中每秒几百兆比特速率的高速数据传输应用。
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| 关 键 词： | 数字接收机 并行处理 FFT 匹配滤波 定时恢复 载波恢复 QPSK |
An Parallel Architecture for Fully Digital Broadband Receivers |
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| CHEN Da fu ZHU Jiang SHI Xin hua ZHANG Er yang. An Parallel Architecture for Fully Digital Broadband Receivers[J]. Journal of Spacecraft TT&C Technology, 2003, 22(1): 54-59 |
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| Authors: | CHEN Da fu ZHU Jiang SHI Xin hua ZHANG Er yang |
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| Abstract: | This paper introduces a fully digital broadband receiver with an FFT parallel architecture. The receiver is composed of three main functional parts: carrier recovery, timed recovery and matching filter. Its signal processing speed is far lower than the input Nyquist sampling rate while its matching filter and timed correction recovery can be effectively implemented in the frequency domain. This kind of architecture is especially suitable for high rate data transmission applications of several hundred Mbps in satellite communication. |
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| Keywords: | Digital Receiver Parallel Processing FFT Matching Filtering Timed Recovery Carrier Recovery QPSK |
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