On frequency-wavenumber estimation by state-space realization
- 1 July 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems
- Vol. 38 (7) , 800-804
- https://doi.org/10.1109/31.135752
Abstract
A frequency-wavenumber estimation problem usually requires a computationally expensive numerical search over a 2-D parameter space for the maximum or minimum of a function. A method using state-space models has been proposed. This method decomposes the 2-D problem into two 1-D problems and provides an analytical solution (i.e., without searching) in each dimension separately. It is shown how the separate estimates obtained by the state-space approach can be grouped into pairs of estimates corresponding to each 2-D signal. It is also shown how a 2-D forward-backward data matrix can be used to improve the performance of the state-space approachKeywords
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