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Journal of Projectiles, Rockets, Missiles and Guidance >

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

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

Academic article

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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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

Cite this article

ZHANG Xiaoyu , FAN Zhenzhen . A Low Interception Signal Producing Method based on Time Division Modulation Multi-Layer Multi-Parameter Weighted Fractional Fourier Transform[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(5) : 935 -942 . DOI: 10.15892/j.cnki.djzdxb.2025.05.037

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