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Volume 22 Issue 2
Mar.  2000
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He Zhenya, Chen Yuxin. ROBUST BLIND NEURAL NETWORK BEAMFORMER BASED ON CYCLOSTATIONARY[J]. Journal of Electronics & Information Technology, 2000, 22(2): 240-246.
Citation: He Zhenya, Chen Yuxin. ROBUST BLIND NEURAL NETWORK BEAMFORMER BASED ON CYCLOSTATIONARY[J]. Journal of Electronics & Information Technology, 2000, 22(2): 240-246.

ROBUST BLIND NEURAL NETWORK BEAMFORMER BASED ON CYCLOSTATIONARY

  • Received Date: 1998-06-22
  • Rev Recd Date: 1999-04-22
  • Publish Date: 2000-03-19
  • A new blind beamformer with improved Hopfield network is presented in this paper. To estimate the steering vector, the signal property of cyclostationary is used. To suppress interference, traditional LCMV beamforming is employed. To improve the robustness, diagonal loading technique is exploited. To turn into realization in real time, a neural network structure is given. Simulations demonstrate the excellent performance of the proposed approach in a wide variety of situations.
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  • Gooch R.[J].Lundell J. The CM array: An adaptive beamformer for constant modulus signal.ICASSP86, Japan.1986,:-[2]Dogan M C, Mendel J M. Cumulant-based blind optimum beamforming. IEEE Trans on AES,1994, AES-30(3): 722-740.[3]Agee B G, Schell S V, Gardner W A. Spectral self-coherence restoral: A new approach to blind adaptive signal extraction using antenna arrays[J].Proc. IEEE.1990, 78(4):753-767[4]Wu Q, Wong K M. Blind adaptive beamforming for cyclostationary signals. IEEE Trans. on SP,1996, SP-44(11): 2757-2767.[5]Burns Paul, Ding Zhi.Robustification of cyclostationary array processing techniques[J].ICASSP95, Michigan, USA.1995, 5:51589-1592[6]Castedo L, Figueiras-Vidal A R. An adaptive beamforming technique based on cyclostationary signal properties. IEEE Trans. on SP, 1995, SP-43(7): 1637-1650.[7]Biedka Thomas E. A method for reducing computations in cyclostationarity-exploiting beamforming[J].ICASSP95. Michigan, USA.1995, 5:1828-1831[8]Gardner W A. Statistical Spectral Analysis: A Nonprobabilistic Theory. Englewood Cliffs, NJ:Prentice-Hall, 1987.[9]Cox H, Zeskind R M, Owen M M. Effects of amplitude and phase errors on linear predictive array processors. IEEE Trans. on ASSP, 1988, ASSP-36(1): 10-19.[10]Tank D W, Hopficld J J. Simple neural optimization networks: An A/D converter, signal decision circuit, and a linear programming circuit. IEEE Trans. on CAS, 1986, CAS-33(5):533-541.[11]Cox H, Zeskind R M, Owen M M. Robust adaptive beamforming. IEEE Trans. on ASSP, 1987,ASSP-35(10): 1365-1375.
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