| 1. |
- Kristensson, Martin, et al.
(author)
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Blind Subspace Identification of a BPSK Communication Channel
- 1996
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In: 30:th Asilomar Conference on Signals, Systems & Computers. - : IEEE. ; , s. 828-832
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Conference paper (peer-reviewed)abstract
- This paper considers the problem of blind estimation of multiple FIR channels. When a subspace algorithm is applied to the blind identification problem, incorporating information about the symbol constellation is in general not possible. However, by exploiting special properties of one dimensional symbol constellations (BPSK), it is shown that it is possible to improve or simplify a class of algorithms for blind channel identification. It is also shown that in the case of one dimensional symbol constellations there is a third way, apart from multiple antennas and oversampling, of arriving at a multichannel representation of the communication system.
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| 2. |
- Kristensson, Martin, et al.
(author)
-
Statistical Analysis of a Subspace Method for Blind Channel Identification
- 1996
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In: Proceedings IEEE International Conference on Acoustics, Speech, and Signal Processing. ICASSP-96.. - : IEEE. ; , s. 2435-2438
-
Conference paper (peer-reviewed)abstract
- This paper considers the problem of blind channel estimation of multi-channel FIR filters. This is a problem arising in, for example, mobile communication systems using digital signalling. By using the orthogonality property between the noise subspace and the channel matrix, it has been shown in earlier work that the channel matrix is identifiable up to a multiplicative constant. In this article, the asymptotic properties of a subspace method using this orthogonality property is presented. An asymptotically correct weighting matrix is derived, demonstrating an attainable lower theoretical bound using the subspace estimate.
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| 3. |
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