Fast De-hopping and Frequency Hopping Pattern (FHP) Estimation for DS/FHSS Using Neural Networks

  • Tarek Elhabian
  • Bo Zhang
  • Dingrong Shao
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3174)


A Fast de-hopping and FHP estimation model for Direct Sequence/Frequency Hopping Spread Spectrum (DS/FHSS) system is proposed. The Neural Networks (NNs) were used to mimic the Parallel Matched Filtering (PMF). The signal samples and its Fast Fourier Transform (FFT) were used for Back propagation Neural Network (BNN) training. The FH patterns designated as concatenated prime codes [8] were used for the Radial Basis Function (RBF) training. Computer simulations show that the proposed method can effectively identify the frequency and estimate its pattern. Small hardware resources compared with PMF hardware.


Acquisition Direct Sequence Frequency Hopping Pattern Neural Network Matched Filter Fourier transform 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Bouder, C., Burel, G.: Spread Spectrum Codes Identification by Neural Networks. In: Systems and Control: Theory and Applications, WSES, pp. 257–262 (2000) ISBN 960-8052-11-4Google Scholar
  2. 2.
    Day, P.S.: Handbook of Neural Computation. IOP Publishing Ltd and Oxford University Press (1997)Google Scholar
  3. 3.
    Dolent, M., Lorenz, D.R.: Recurrent Neural Network Topologies for Spectral State Estimation and Differentiation. In: ANNIE 2000 Conference, St. Louse MO (2000)Google Scholar
  4. 4.
    Chau, A.Y., Wang, J.K.: Spectral-Estimation-Based Acquisition for Frequency-Hopping Spread-Spectrum Communications in Nonfading or Rayleigh-Fading Channel. IEEE Transactions on Communications 45, IEEE (1997)Google Scholar
  5. 5.
    Berder, O., Bouder, C., Burel, G.: Identification of Frequency Hopping Communications. In: Problems in Modern Applied Mathematics, WSES, pp. 259–264 (2000) ISBN 960-8052-15-7Google Scholar
  6. 6.
    Hagan, T.M., Demuth, B.H., Beale, M.: Neural Network Design. PWS Publishing Co. (1996)Google Scholar
  7. 7.
    Fan, C.C., Tsai, Z.H.: A Differentially Coherent Delay-Locked Loop for Spread-Spectrum Tracking Receiver. IEEE Communication Letters 3, IEEE (1999)Google Scholar
  8. 8.
    Hong, C.F., Yang, G.C.: Concatenated Prime Codes. IEEE Communications Letters 3, 260–262 (1999)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Tarek Elhabian
    • 1
  • Bo Zhang
    • 1
  • Dingrong Shao
    • 1
  1. 1.School of Electronics & InformationBeijing University of Aeronautics & AstronauticsChina

Personalised recommendations