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An analytical constant modulus algorithm
Open accessAbstract
Iterative constant modulus algorithms such as Godard (1980) and CMA have been used to blindly separate a superposition of cochannel constant modulus (CM) signals impinging on an antenna array. These algorithms have certain deficiencies in the context of convergence to local minima and the retrieval of all individual CM signals that are present in the channel. We show that the underlying constant modulus factorization problem is, in fact, a generalized eigenvalue problem, and may be solved via a simultaneous diagonalization of a set of matrices. With this new analytical approach, it is possible to detect the number of CM signals present in the channel, and to retrieve all of them exactly, rejecting other, non-CM signals. Only a modest amount of samples is required. The algorithm is robust in the presence of noise and is tested on measured data collected from an experimental set-up.
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Golub, G. (2012) · doi:10.56021/9781421407944 · Cited by 34,505
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Venkateswaran, V., & van der Veen, A.-J. (2010) · IEEE Transactions on Signal Processing · doi:10.1109/tsp.2010.2048321 · Cited by 396
Self-citation
Metadata
- Authors
- van der Veen, A.-J., & Paulraj, A.
- Venue
- IEEE Transactions on Signal Processing
- Published
- 1996-05
- Volume
- 44
- Issue
- 5
- Pages
- 1136-1155
- ISSN
- 1053-587X (ISSN-L)
- OpenAlex
- W2105186495
- Cited by
- 526
- References
- 1
- FWCI
- 27.16
- Type
- journal article
- Language
- en
- Open access
- bronze
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