一种分数域数字信号调制方式识别方法

张笑宇; 冯永新; 钱博

doi:10.15892/j.cnki.djzdxb.2021.01.003

弹箭与制导学报 >

2021 , Vol. 41 >Issue 1: 13 - 17

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.01.003

一种分数域数字信号调制方式识别方法

张笑宇 ¹^,² ,
冯永新 ¹ ,
钱博 ¹

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¹ 沈阳理工大学辽宁省信息网络与信息对抗重点实验室,沈阳 110159
² 山东特种工业集团有限公司军品研究所,山东淄博 255200

张笑宇(1988—),男,山东淄博人,博士研究生,研究方向:扩频通信、数字信号处理。

收稿日期: 2019-10-02

网络出版日期: 2025-02-11

基金资助

国家自然科学基金(61971291)

辽宁省高校创新团队项目资助

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A Modulation Recognition Method for Digital Signals in Fractional Domain

ZHANG Xiaoyu ¹^,² ,
FENG Yongxin ¹ ,
QIAN Bo ¹

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¹ Information Network and Information countermeasure Key Laboratory of Liaoning Province,Shenyang Ligong University,Shenyang 110159,China
² Institute of Military Products,Shandong Special Industry Group Co. Ltd.,Shandong Zibo 255200, China

Received date: 2019-10-02

Online published: 2025-02-11

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摘要

随着通信系统电磁环境的日益复杂,确保数字信号调制方式识别的有效性和准确性尤为重要。针对数字信号的特点,引入分数阶傅里叶变换(FRFT)提取修正分数域瞬时幅度参数RMAX进行幅度信号的识别,引入FRFT提取修正分数域四阶累积量比值进行频率信号的识别及类内信号的识别,完成分数域数字信号的调制方式识别。仿真结果表明,该方法可在低信噪比下有效识别调制方式,具有较好的识别准确性,可为工程实践提供理论借鉴。

关键词： 信号与信息处理; 调制方式识别; 分数阶傅里叶变换; 四阶累积量

本文引用格式

张笑宇 , 冯永新 , 钱博 . 一种分数域数字信号调制方式识别方法[J]. 弹箭与制导学报, 2021 , 41(1) : 13 -17 . DOI: 10.15892/j.cnki.djzdxb.2021.01.003

Abstract

With the electromagnetism environment gradually complexity of communication system, it is meaningful for ensuring validity and accuracy of modulation recognition method of digital signals. According to the characteristics of digital signals, fraction Fourier transform is introduced to extract the revise fraction instantaneous amplitude parameters, which is used to recognize the amplifier modulated signals, and recognition of digital signals is completed with extract the revise fraction ratio of fourth order cumulates by introducing FRFT, which is used to recognize the frequency modulated signals and phase modulated signals. The simulation results show that, this method can recognize digital signals available in the condition of low SNR, and be more accurate due to the rotating characteristics of FRFT. This method can provide a theoretical reference for the engineering practice.

Key words： signal and information processing; modulation recognition; fraction Fourier transform; fourth order cumulates

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参考文献

原文顺序 | 文献年度倒序 | 文中引用次数倒序

[1]	吕圆圆. 复杂电磁环境下的数字调制方式识别研究[D]. 北京: 北京邮电大学, 2015.

[2]	张喆, 达新宇, 刘慧军. 一种新型Ka波段卫星信号抗截获调制方案[J]. 传感器与微系统, 2018, 37(9):15-18.

[3]	HOU H L, PANG C S, GUO H L. Study on high-speed and multi-target detection algorithm based on STFT and FRFT combination[J]. Optik, 2016, 127(2): 713-717.

[4]	CHEN R, WANG Y M. Universal FRFT-based algorithm for parameter estimation of chirp signals[J]. Journal of Systems Engineering and Electronics, 2012, 23(4): 495-501. DOI

[5]	李跃, 郭兴吉, 赵欣. 基于高阶累积量的调制方式识别研究[J]. 西南科技大学学报, 2018, 33(3):64-68.

[6]	陈蕙心, 彭晶晶, 郑黎明. 基于高阶累积量和熵值联合特征的调制识别算法[J]. 制导与引信, 2018, 39(3):27-33.

[7]	徐瑞阳, 达新宇, 梁源, 等. 基于跳频的改进加权分数阶傅里叶变换[J]. 华中科技大学学报(自然科学版), 2019, 47(2):30-35.

[8]	张燕华, 马小虎. 基于分数阶傅里叶变换和扩展变换抖动调制的鲁棒数字水印算法[J]. 计算机科学, 2016, 43(11):200-204. DOI

[9]	FENG Y X, TENG Z Y, MENG F Y, et al. An accurate modulation recognition method of QPSK signal[J]. Mathematical Problems in Engineering, 2015, 2015: 1-7.

[10]	FANG X J, SHA X J, MEI L. Guaranteeing wireless communication secrecy via a WFRFT-based cooperative system[J]. China Communications, 2015(9): 76-82.

[11]	倪磊, 达新宇, 王舒, 等. 基于物理层信息加密的卫星隐蔽通信研究[J]. 工程科学与技术, 2018, 50(1):133-139.

[12]	翟东, 达新宇, 梁源. WFRFT-MIMO卫星抗截获通信系统[J]. 空军工程大学学报(自然科学版), 2018, 19(2):26-32.

[13]	WANG Z D, LIN M, SHA X J. BER analysis of STBC hybrid carrier system based on WFRFT with frequency domain equalization[J]. Science China, 2018, 61(8): 143-155.

[14]	LIANG Y, DA X Y, XU R Y, et al. Research on constellation-splitting criterion in multiple parameters WFRFT modulations[J]. IEEE Access, 2018, 6: 34354-34364.

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