一种用于卫星有效载荷的抗干扰技术

doi:10.3969/j.issn.0255-8297.2013.02.004

应用科学学报 ›› 2013, Vol. 31 ›› Issue (2): 130-134.doi: 10.3969/j.issn.0255-8297.2013.02.004

一种用于卫星有效载荷的抗干扰技术

卜祥元，郭宇琨，郝时光

北京理工大学信息与电子学院，北京100081

收稿日期:2011-07-20 修回日期:2012-05-08 出版日期:2013-03-25 发布日期:2012-05-08
通信作者: 卜祥元，教授，博导，研究方向：无线通信、通信抗干扰，E-mail: bxy@bit.edu.cn
作者简介:卜祥元，教授，博导，研究方向：无线通信、通信抗干扰，E-mail: bxy@bit.edu.cn
基金资助:
国家自然科学基金(No.61072048)资助

Transform Domain Anti-jamming Scheme for Spacecraft Payload in Satellite Communications

BU Xiang-yuan, GUO Yu-kun, HAO Shi-guang

School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China

Received:2011-07-20 Revised:2012-05-08 Online:2013-03-25 Published:2012-05-08

摘要/Abstract

摘要： 在现代卫星通信中，有效载荷功能集成化对各模块的硬件资源消耗量提出了更高的要求，而传统频域抗干扰技术资源消耗量较大. 鉴于快速傅里叶变换(fast Fourier transform, FFT)是频域抗干扰的核心部分，提出改进的FFT实现技术，对每级FFT运算结果进行自适应截位. 该方法较常规FFT算法结构节省了大量的硬件资源，
并提高了信号频谱的动态范围，以较少的硬件资源实现了更强的抗干扰能力. 该技术已成功应用于卫星导航系统的星间链路抗干扰通信，效果良好，在当代电子信息对抗领域中亦有广阔的应用前景.

关键词: 快速傅里叶变换, 抗干扰, 低复杂度

Abstract: With the development of modern satellite communication, integration of the functions of the satellite payload has significantly raised requirements of the hardware costs. This paper proposes an improved FFT algorithm that uses self-adapting truncation at each level of the FFT process to achieve a lager dynamic range of the signal’s spectrum as compared to the conventional FFT implementation. The improved algorithm has been applied in an inter-satellite link of a satellite navigation system with good anti-jamming performance, large dynamic range, and low complexity.

Key words: fast Fourier transform (FFT), anti-jammer, low complexity

中图分类号:

TN927

卜祥元，郭宇琨，郝时光. 一种用于卫星有效载荷的抗干扰技术[J]. 应用科学学报, 2013, 31(2): 130-134.

BU Xiang-yuan, GUO Yu-kun, HAO Shi-guang. Transform Domain Anti-jamming Scheme for Spacecraft Payload in Satellite Communications[J]. Journal of Applied Sciences, 2013, 31(2): 130-134.

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一种用于卫星有效载荷的抗干扰技术

Transform Domain Anti-jamming Scheme for Spacecraft Payload in Satellite Communications

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