dc.contributor.author |
Wu, J. |
- |
dc.contributor.author |
Chen, S. |
- |
dc.contributor.author |
Whidborne, James F. |
- |
dc.contributor.author |
Chu, J. |
- |
dc.date.accessioned |
2011-11-16T23:01:57Z |
|
dc.date.available |
2011-11-16T23:01:57Z |
|
dc.date.issued |
2004-03-20T00:00:00Z |
- |
dc.identifier.citation |
Jun Wu, Sheng Chen, James F. Whidborne, Jian Chu, Optimal realizations of
floating-point implemented digital controllers with finite word length
considerations, International Journal of Control, Volume 77, Issue 5, Mar 2004,
Pages 427 - 440 |
- |
dc.identifier.issn |
0020-7179 |
- |
dc.identifier.uri |
http://dx.doi.org/10.1080/0020717042000208296 |
- |
dc.identifier.uri |
http://dspace.lib.cranfield.ac.uk/handle/1826/1237 |
|
dc.description.abstract |
The closed-loop stability issue of finite word length (FWL) realizations is
investigated for digital controllers implemented in floating-point arithmetic.
Unlike the existing methods which only address the effect of the mantissa bits
in floating-point implementation to the sensitivity of closed-loop stability,
the sensitivity of closed-loop stability is analysed with respect to both the
mantissa and exponent bits of floating-point implementation. A computationally
tractable FWL closed-loop stability measure is then defined, and the method of
computing the value of this measure is given. The optimal controller realization
problem is posed as searching for a floating-point realization that maximizes
the proposed FWL closed-loop stability measure, and a numerical optimization
technique is adopted to solve for the resulting optimization problem. Simulation
results show that the proposed design procedure yields computationally efficient
controller realizations with enhanced FWL closed-loop stability performance. |
en_UK |
dc.language.iso |
en_UK |
- |
dc.publisher |
Taylor & Francis |
en_UK |
dc.title |
Optimal realizations of floating-point implemented digital controllers with
finite word length considerations. |
en_UK |
dc.type |
Article |
- |