Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (4): 942-949.doi: 10.13229/j.cnki.jdxbgxb20200920

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Integrated design of reconnaissance and jamming based on modulation wideband converter technology

Tao CHEN1,2(),Jia-xu GAO1,2,Ying ZHANG1,2   

  1. 1.College of Information and Communication Engineering，Harbin Engineering University，Harbin 150001，China
    2.Key Laboratory of Advanced Marine Communication and Information Technology，Ministry of Industry and Information Technology，Harbin Engineering University，Harbin 150001，China
  • Received:2020-11-29 Online:2022-04-01 Published:2022-04-20

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Abstract:

In response to the demand， application and development of integrated technology for reconnaissance and jamming， in order to solve the problem of simultaneous detection and jamming with large bandwidth， this article proposes an integrated design for reconnaissance and jamming based on Modulation Wideband Converter （MWC） technology. The design includes a multi-channel compression multiplexing receiving module， a compressed signal jamming generating module， a multi-channel random demixing module， and a jamming transmitting module. The design firstly uses the MWC technology to realize random mixing of the signals received by the multi-channel， and realizes the single-channel analog-to-digital converter （ADC） reception after multiplexing to get the composite compressed signal. Then a specified pattern of jamming is added to the compressed signal to generate a compressed jamming signal. Next， the random demixing of the composite compressed signal of a single digital-to-analog converter （DAC） is completed. Finally， the signal is multiplexed. The simulation results show that the design can achieve large bandwidth simultaneous reconnaissance and simultaneous jamming with fewer ADC and DAC channels， and verify the influence of the signal-to-noise ratio and the correlation of the mixing sequence on the jamming signal.

Key words: radar signal jamming, modulation wideband converter, multi-channel compression multiplexing, random demixing

CLC Number: 

  • TN97

Fig.1

Integrated structure of reconnaissance and jamming for multi-channel detection and receiver transmission"

Fig.2

Integrated structure of reconnaissance and jamming based on MWC technology"

Fig.3

Received signal and spectrum of mixing function"

Fig.4

Spectrum of mixing signal"

Fig.5

Random demixing module"

Fig.6

Output signal of demixed module when interrupted sampling with time-delay superposition jamming is used"

Fig.7

Output signal of demixed module when noise frequency modulation jamming is used"

Fig.8

Time domain waveform of each channel under different SNR when correlation coefficient is 0.1"

Fig.9

Time domain waveform of each channel under different SNR when correlation coefficient is 0.3"

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