Resolution advantages of quadratic signal processing

Les E. Atlas; Jing Fang; Patrick Loughlin; Wayne Music

doi:10.1117/12.49817

1 December 1991 Resolution advantages of quadratic signal processing

Les E. Atlas, Jing Fang, Patrick Loughlin, Wayne Music

Proceedings Volume 1566, Advanced Signal Processing Algorithms, Architectures, and Implementations II; (1991) https://doi.org/10.1117/12.49817
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

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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