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| Joint estimation of frequencies, two-dimensional AOAs and polarization for spatial broad-band signals |
| Wang Jiyang; Wang Jianying; Chen Tianqi |
| Dept. of Electronic Engineering UEST of China Chengdu 610054 China |
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Abstract Under the condition of spatial subsampling, with flexible definition of fourth-order cumulant matrix of L-shaped array antennas’ output, utilizing the blind Gaussian and aperture extension properties of high-order cumulant, the estimation of frequency and two-dimensional(2D) Angles Of Arrivals (AOAs) are separated from the estimation of polarization of spatial non-Gaussian broad-band signals. An algorithm based on fourth-order cumulant ESPRIT and integral search is proposed to jointly estimate the parameters in multi-signal and arbitrary Gaussian noise environment. The array antennas are consisted of crossed dipoles that are parallel to the coordinate axes. Numerical simulation results verify the feasibility of this method.
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Received: 23 August 2000
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2002, Vol. 24 
