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XIA Tie-qi, WANG Xue-gang, ZHENG Yi. New Cumulant Based Method for 2-D DOAs Estimation[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 840-843.
Citation: XIA Tie-qi, WANG Xue-gang, ZHENG Yi. New Cumulant Based Method for 2-D DOAs Estimation[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 840-843.
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New Cumulant Based Method for 2-D DOAs Estimation

  • 1.

    School of Electronic Engineering,University of Electronic Science and Technology of China Chengdu 610054

  • Received Date: 2007-09-18
  • Rev Recd Date: 2008-05-11
  • Publish Date: 2008-12-15
  • A novel joint diagonalization fourth-order cumulants DOA matrix method is proposed to estimate the higher 2-D DOAs of uncorrelated narrowband signals in arbitrary Gaussian noise environments. Based on the special structure of the array, the method constructs three subarrays by exploiting fourth-order cumulants, thereby obtaining the 2-D DOAs of the array based on joint diagonalization with neither peak searching nor pair matching. The new method can handle sources with common 1-D angles and remedy the disadvantages of the methods employing pair matching in the case of low SNR, small angular separation, and other severe propagation environments. Simulation results show the effectiveness of the method.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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New Cumulant Based Method for 2-D DOAs Estimation

  • 1. School of Electronic Engineering,University of Electronic Science and Technology of China Chengdu 610054
  • Received Date: 2007-09-18
  • Rev Recd Date: 2008-05-11
  • Publish Date: 2008-12-15

Abstract: A novel joint diagonalization fourth-order cumulants DOA matrix method is proposed to estimate the higher 2-D DOAs of uncorrelated narrowband signals in arbitrary Gaussian noise environments. Based on the special structure of the array, the method constructs three subarrays by exploiting fourth-order cumulants, thereby obtaining the 2-D DOAs of the array based on joint diagonalization with neither peak searching nor pair matching. The new method can handle sources with common 1-D angles and remedy the disadvantages of the methods employing pair matching in the case of low SNR, small angular separation, and other severe propagation environments. Simulation results show the effectiveness of the method.

XIA Tie-qi, WANG Xue-gang, ZHENG Yi. New Cumulant Based Method for 2-D DOAs Estimation[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 840-843.
Citation: XIA Tie-qi, WANG Xue-gang, ZHENG Yi. New Cumulant Based Method for 2-D DOAs Estimation[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 840-843.
shu

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