Paper
1 December 1991 Resolution advantages of quadratic signal processing
Les E. Atlas, Jing Fang, Patrick Loughlin, Wayne Music
Author Affiliations +
Abstract
In this paper, we show how quadratic time-frequency representations are a generalization of the spectrogram and we review our results for time-frequency analysis and display of chirps and speech. We then show comparative performance on phase-shifted keyed communication signals. The concept of quadratic filtering is then introduced and linked to Teager's energy detector and the resolution advantages over linear filtering are demonstrated.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Les E. Atlas, Jing Fang, Patrick Loughlin, and Wayne Music "Resolution advantages of quadratic signal processing", Proc. SPIE 1566, Advanced Signal Processing Algorithms, Architectures, and Implementations II, (1 December 1991); https://doi.org/10.1117/12.49817
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CITATIONS
Cited by 9 scholarly publications.
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KEYWORDS
Sensors

Filtering (signal processing)

Signal processing

Linear filtering

Time-frequency analysis

Phase shift keying

Fourier transforms

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