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Magnitude-constrain...
Magnitude-constrained sequence design with application in MRI
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- Björk, Marcus (författare)
- Uppsala universitet,Avdelningen för systemteknik,Reglerteknik,Biomedical systems
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- Stoica, Peter (författare)
- Uppsala universitet,Avdelningen för systemteknik,Reglerteknik,Biomedical systems
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(creator_code:org_t)
- Piscataway, NJ : IEEE, 2014
- 2014
- Engelska.
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Ingår i: Proc. 39th IEEE International Conference on Acoustics, Speech, and Signal Processing. - Piscataway, NJ : IEEE. - 9781479928934 ; , s. 4943-4947
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this paper we present an algorithm for sequence design with magnitude constraints. We formulate the design problem in a general setting, but also illustrate its relevance to parallel excitation MRI. The formulated non-convex design optimization criterion is minimized locally by means of a cyclic algorithm, consisting of two simple algebraic sub-steps. Since the algorithm truly minimizes the criterion, the obtained sequence designs are guaranteed to improve upon the estimates provided by a previous method, which is based on the heuristic principle of the Iterative Quadratic Maximum Likelihood algorithm. The performance of the proposed algorithm is illustrated in two numerical examples.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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