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| ESTIMATING FREQUENCIES OF SPATIAL SIGNALS FOR ARBITRARY GEOMETRY ARRAY |
| Wang Jiyang; Huang Youyong; Chen Tianqi |
| University of Electronics Science and Technology of China Chengdu 610054 |
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Abstract This paper presents a ESPRIT-based algorithm to estimate carrier frequencies of independent spatial signals with no geometric constraints on the array. After mapping the element space data into DFT space, the "frequency vector" is extracted which is independent of array information, and then beamspace ESPRIT is used to estimate the spatial signals frequencies via an indirect ESPRIT method. The simulation results demonstrate our algorithm to be of high-resolution and high-precision with arbitrary array geometry.
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Received: 17 December 1998
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2001, Vol. 23 
