| 基于FFT的抑制载波捕获技术 |
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| 作者姓名： | 罗霞 郭晓峰 卢满宏 |
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| 作者单位： | 北京遥测技术研究所; |
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| 摘 要： | 介绍三种基于快速傅里叶变换(FFT)的开环抑制载波捕获技术,并对这些算法进行性能分析及仿真.结果表明,基于FFT的交错符号积分技术,在低符号信噪比时引入的信噪比损失最小,适用于深空接收机中抑制载波捕获.
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| 关 键 词： | 深空 抑制载波 FFT 符号积分 低信噪比 |
Suppressed-Carrier Acquisition Techniques Based on FFT |
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| Authors: | Luo Xia Guo Xiaofeng Lu Manhong |
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| Institution: | Luo Xia,Guo Xiaofeng,Lu Manhong |
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| Abstract: | This paper compares three open-loop suppressed-carrier acquisition techniques based on FFT,then analyzes and simulates the performance of these algorithms.The results show that the staggered-symbol integration technique based on FFT has the best performance at low received symbol SNR,which makes it the preferred implementation of the suppressed-carrier acquisition for Deep Space Network applications. |
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| Keywords: | Deep space Suppressed-carrier FFT Symbol-integration Low SNR |
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