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- W184114133 abstract "Detection of a signal of known characteristics is generally achieved by means of techniques which operate either in the time domain or in the frequency domain. Keeping in mind situations fowhich temporal and spectral informations are simultaneously relevant (eg. transient vibrations or FM signals), an alternative approach is proposed, which operates directly in the time-frequency plane. By using derivations similar to those leading to the classical matched filtering theory, it is shown that a Wigner-based time-frequency strategy is optimal w.r.t either the maiimization of an output signal-to-noise ratio (deflection criterion) or a likelihood ratio based approach As a result, suitably chosen lime-frequency structures can be used as signal signatures for detection, and possibly classification Furthermore, time-frequency receivers can be shown to naturally accommodate for uncertainty* when the signal to detect is imperfectly known" @default.
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- W184114133 date "1989-07-01" @default.
- W184114133 modified "2023-09-23" @default.
- W184114133 title "Signal Detection in the Time-Frequency Plane" @default.
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- W184114133 doi "https://doi.org/10.1016/s1474-6670(17)54402-x" @default.
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