A Real-Value Algorithm of ESPRIT via Exploitation of Non-circular Sources Property

Zheng Chun-di; Feng Da-zheng; Zhou Yi; Lei Ge

doi:10.3724/SP.J.1146.2006.00939

Volume 30 Issue 1

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(1): 130-133

Zheng Chun-di, Feng Da-zheng, Zhou Yi, Lei Ge. A Real-Value Algorithm of ESPRIT via Exploitation of Non-circular Sources Property[J]. Journal of Electronics & Information Technology, 2008, 30(1): 130-133. doi: 10.3724/SP.J.1146.2006.00939

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Zheng Chun-di, Feng Da-zheng, Zhou Yi, Lei Ge. A Real-Value Algorithm of ESPRIT via Exploitation of Non-circular Sources Property[J]. Journal of Electronics & Information Technology, 2008, 30(1): 130-133. doi: 10.3724/SP.J.1146.2006.00939

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A Real-Value Algorithm of ESPRIT via Exploitation of Non-circular Sources Property

doi: 10.3724/SP.J.1146.2006.00939

Received Date: 2006-06-29
Rev Recd Date: 2007-01-02
Publish Date: 2008-01-19

Abstract

Abstract

A new ESPRIT-like method is presented to estimate the Direction-Of-Arrival (DOA) of non-circular sources. The basic idea of the real-value algorithm is to use the non-circular sources property of the received signals to get the sine and cosine data. Because the new data are the real-valued sine and cosine data respectively, the proposed algorithm can double the length of data by concatenating the sine and cosine data in tandem, as a result it can improve the performance of the DOA estimation and can resolve two times the number of directions when compared to those conventional ESPRIT-like estimators. More importantly, the computational complexity is reduced in the eigennalysis stage, because it exploits the eigencomposition of a real-valued covariance matrix. The simulation results show that the proposed method is superior in resolving noncoherent signal.

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References

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