A filter for separating time-limited modal signals

@article{Pearson1979AFF,
  title={A filter for separating time-limited modal signals},
  author={A. Pearson and J. Mocenigo},
  journal={IEEE Transactions on Automatic Control},
  year={1979},
  volume={24},
  pages={653-658}
}
A two-stage deterministic filter is derived which can separate two sets of modal signals when presented with their arbitrary mixed sum on a fixed finite time interval. The assumptions are 1) that the mode locations in the complex plane are known for one set (for example, a finite Fourier series has known modes relative to a given time interval) and 2) the two sets of modes are disjoint. Using integral operations on the mixed sum over the fixed time interval, the filter first estimates the modes… Expand
1 Citations
Elimination of exponential interference form finite-length discrete signals
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  • Mathematics, Computer Science
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  • 1990
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It is found that matrices, when multiplied with a vector of samples of any given signal, completely eliminate from it an exponential interference that satisfies a given homogeneous difference equation (HDE). Expand

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