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弹箭与制导学报 >

2025 , Vol. 45 >Issue 5: 935 - 942

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.05.037

学术文章

一种时分调制ML-MP-WFRFT的低截获信号产生方法

  • 张笑宇 , 1, 2, 4 ,
  • 范真真 , 3, *
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  • 1 山东特种工业集团有限公司军品研究所, 山东 淄博 255200
  • 2 山东特种工业集团有限公司微小型飞行弹药工程应用中心, 山东 淄博 255200
  • 3 山东轻工职业学院信息工程系, 山东 淄博 255300
  • 4 沈阳理工大学信息科学与工程学院, 辽宁 沈阳 110159
范真真(1988-),女,讲师,E-mail:

张笑宇(1988-),男,高级工程师,E-mail:

收稿日期: 2025-05-19

  网络出版日期: 2025-11-28

基金资助

山东特种工业集团转型升级项目支持资助

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A Low Interception Signal Producing Method based on Time Division Modulation Multi-Layer Multi-Parameter Weighted Fractional Fourier Transform

  • ZHANG Xiaoyu , 1, 2, 4 ,
  • FAN Zhenzhen , 3, *
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  • 1 Institute of Military Products, Shandong Special Industry Group Co. Ltd., Zibo 255200,Shandong, China
  • 2 Engineering application center of micro flying ammunition, Shandong Special Industry Group Co. Ltd., Zibo 255200, Shandong, China
  • 3 Information Engineering Department, Shandong Vocational College of Light Industry, Zibo 255300, Shandong, China
  • 4 School of Information Science and Engineering, Shenyang Ligong University, Shenyang 110159,Liaoning, China

Received date: 2025-05-19

  Online published: 2025-11-28

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摘要

多层多参数加权分数阶傅里叶变换凭借其多控制参数和信号伪装特性,成为提高通信系统保密性的研究热点。为提高多层多参数加权分数阶傅里叶变换调制信号的抗窃听性,提出了一种时分调制的多层多参数加权分数阶傅里叶变换信号产生方法,该方法通过对旋转系数的奇偶性判定,进行不同旋转系数的时分调制,进一步丰富了加权分数阶傅里叶变换的控制参数数量。仿真结果表明,时分调制信号的功率谱特性、时域波形特性及星座图特性与未经过时分调制的信号相同,且通过此方法产生的信号可有效降低第三方的截获参数的概率;当第三方旋转系数偏差0.2时,误码率为10-1时,可提高信噪比约6dB,进一步提高抗扫描性和抗窃听性。

关键词： WFRFT信号; 多层多参数; 时分调制; 低截获

本文引用格式

张笑宇 , 范真真 . 一种时分调制ML-MP-WFRFT的低截获信号产生方法[J]. 弹箭与制导学报, 2025 , 45(5) : 935 -942 . DOI: 10.15892/j.cnki.djzdxb.2025.05.037

Abstract

With the characteristics of multi-parameter controller and signal camouflage, the Multi-Layer Multi-Parameter Weighted Fractional Fourier Transform (ML-MP-WFRFT) has been the research hotspot in security communication system, which is called a new physical layer secret communication method according to its good anti-modulation identification performance. In order to improve the anti-interception performance of the ML-MP-WFRFT, a signal producing method based on Time Division Modulation Multi-Layer Multi-Parameter Weighted Fractional Fourier Transform (TM-ML-MP-WFRFT) was proposed. In this method, the Time Division Modulation mechanism was used in different rotation factor by its parity judgement, which can enrich the numbers of Weighted Fractional Fourier Transform (WFRFT) control parameters. The simulation results show that the time domain waveform, the power spectrum density (PSD) and the constellation characteristics of the TM-ML-MP-WFRFT signal is similarly with the ML-MP-WFRFT signal, and the TM-ML-MP-WFRFT signal can effectively reduce the ability of the eavesdropper to decipher, and improve the anti-scanning and anti-eavesdropping performance of the signal. When the deviation of the rotation factor is 0.2 and Error Bit Rating (BER) is 10-1, the TM-ML-MP-WFRFT signal can enhance 6 dB Signal to Noise Rating (SNR).

Key words： weighted fractional fourier transform signal; multi-layer multi-parameter; time division modulation; low interception

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