A Compact Gradient Based Neural Network for Capon Spectral Estimation

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Abstract: This paper describes the use of a novel gradient based recurrent neural network to perform Capon spectral estimation. Nowadays, in the fastest algorithm proposed by Marple et al., the computational burden still remains significant in the calculation of the autoregressive (AR) Parameters. In this paper we propose to use a gradient based neural network to compute the AR parameters by solving the Yule-Walker equations. Furthermore, to reduce the complexity of the neural network architecture, the weights matrixinputs vector product is performed efficiently using the fast Fourier transform. Simulation results show that proposed neural network and its simplified architecture lead to the same results as the original method which prove the correctness of the proposed scheme.

Engineering World, E-ISSN: 2692-5079, Volume 1, 2019, Art. #10

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Abderrazak Benchabane, Fella Charif, "A Compact Gradient Based Neural Network for Capon Spectral Estimation," Engineering World, vol. 1, pp. 97-102, 2019, DOI:
Abderrazak Benchabane, Fella Charif. A Compact Gradient Based Neural Network for Capon Spectral Estimation. Engineering World. 2019;1:97-102.
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