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| Rank-1 Ambiguity of Steering Vector of an Array with Five Co-localized and Orthogonally Oriented Sensors |
| Xu You-gen; Liu Zhi-wen; Wang Si-ping |
| Dept. of Electronic Engineering Beijing Institute of Technology Beijing 100081 China |
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Abstract The rank-1 ambiguity problem involved in the Polarization-Angular Coherence Structure (PACS) of a 5-D co-localized vector antenna whose elements are orthogonally oriented is adrressed in this paper. Two kinds of equivalent relations are defined, under which several typical and easy-analyzed 5-D PACSs are studied. It is further shown in the paper that with only one 5-D vector antenna, DOA and polarization of one signal except for the case of horizontally polarized signal could be uniquely identified, as is done by the well-known 6-D ElectroMagnetic (EM) vector sensor. Some representative examples are also given to validate the present analyses.
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Received: 28 November 2003
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2005, Vol. 27 
