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Journal of Projectiles, Rockets, Missiles and Guidance >

2022 , Vol. 42 >Issue 3: 11 - 15

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2022.03.003

A Fractional Domain Modulation Method Based on Frequency Hopping Mechanism

  • ZHANG Xiaoyu 1 ,
  • FAN Zhenzhen 2 ,
  • SUN Fenghao 3 ,
  • YU Xi 1 ,
  • LYU Zhenbin 1
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  • 1 Institute of Military Products, Shandong Special Industry Group Co., Ltd., Zibo 255200, Shandong,China
  • 2 Information Engineering Department, Shandong Vocational College of Light Industry, Zibo 255300, Shandong,China
  • 3 Department of Enterprise Operation and Management, Bashan Group Co., Ltd., Zibo 255200, Shandong,China

Received date: 2021-12-02

  Online published: 2025-02-03

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Abstract

With the rapid development of the electronic reconnaissance technology, the traditional frequency hopping communication system (FHSS) was easy to be intercepted and monitored. How to improve the confidentiality and security of the communication system has been the research hotspot. In order to improve the anti-eavesdropping performance of FHSS, a fractional domain modulation method based on frequency hopping system was proposed. In this method, the synchronization sequence and data sequence are modulated through weighted fractional Fourier transform (WFRFT) respectively, meanwhile the FHSS frequency is generated by the frequency hopping sequence generator to realize the fractional domain modulation of synchronization signal and data signal. The simulation results show that the time-frequency distribution and power spectrum density characteristics of the fractional domain modulation FHSS signal is similarly with the traditional FHSS signal, and the time domain characteristics are the superposition of the time domain signal and the frequency domain signal, the constellation characteristics are rotated and fissioned, which can effectively improve the anti-scanning and anti-eavesdropping performance of the signal.

Key words： weighted fractional Fourier transform; frequency hopping mechanism; anti-scanning; anti-jamming

Cite this article

ZHANG Xiaoyu , FAN Zhenzhen , SUN Fenghao , YU Xi , LYU Zhenbin . A Fractional Domain Modulation Method Based on Frequency Hopping Mechanism[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2022 , 42(3) : 11 -15 . DOI: 10.15892/j.cnki.djzdxb.2022.03.003

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