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- W2390787031 abstract "To solve the problem of the Orthogonal Frequency Division Multiplexing(OFDM) broadband signal processing,an algorithm for the Direction of Arrival(DOA) estimation of OFDM signal based on the broadband focused matrix and higher-order cumulant was introduced.In the former algorithm,broadband array data was broken down into several narrowband signals by Fourier transform,the direction matrices under different frequence bands were transformed to the same reference frequency by a focused matrix,and then with the Multiple Signal Classification(MUSIC) algorithm DOA was estimated.In the higher-order cumulant algorithm,through the focus operation,array output vectors at different frequency bins were transformed to focusing frequency and individual cumulant matrix was got.Each cumulant matrix was made weighted average and eigen-decomposition,and then the MUSIC algorithm was applied to estimate DOA.Theoretical analysis and simulation results show that the two methods are able to accurately estimate DOA of OFDM signal,the spatial resolution of four-order cumulant method is better than the focusing matrix method.The four-order cumulant expanded the array aperture,and it also has good adaptability when the Signal-to-Noise Ratio(SNR) is low." @default.
- W2390787031 created "2016-06-24" @default.
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- W2390787031 date "2013-01-01" @default.
- W2390787031 modified "2023-09-23" @default.
- W2390787031 title "Direction of arrival estimation of orthogonal frequency division multiplexing signal based on wideband focused matrix and higher-order cumulant" @default.
- W2390787031 hasPublicationYear "2013" @default.
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