Suboptimal Filtering and Nonlinear Time Scale Transformation for the Analysis of Multiexponential Decays

Palacín Roca, Jordi; Marco, Santiago; Samitier, Josep

doi:https://doi.org/10.1109/19.903891

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Issue date

2001

Author

Palacín Roca, Jordi

Marco, Santiago

Samitier, Josep

Abstract

Multiexponential decays may contain time-constants differing in several orders of magnitudes. In such cases, uniform sampling results in very long records featuring a high degree of oversampling at the final part of the transient. Here, we analyze a nonlinear time scale transformation to reduce

the total number of samples with minimum signal distortion, achieving an important reduction of the computational cost of subsequent analyses. We propose a time-varying filter whose length is optimized for minimum mean square error.

URI

http://hdl.handle.net/10459.1/57274

DOI

https://doi.org/10.1109/19.903891

Is part of

IEEE Transactions on Instrumentation and measurement, 2001, vol. 50, p. 135-140

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