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- Venkitaraman, ArunDepartment of Electrical Engineering, Indian Institute of Science, Bangalore-560012, India (author)
A Technique to Compute Smooth Amplitude, Phase, and Frequency Modulations From the Analytic Signal
- Article/chapterEnglish2012
Publisher, publication year, extent ...
- IEEE Signal Processing Society,2012
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:kth-131267
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-131267URI
- https://doi.org/10.1109/LSP.2012.2209872DOI
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- Language:English
- Summary in:English
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Notes
- QC 20131211
- Gabor’s analytic signal (AS) is a unique complexsignal corresponding to a real signal, but in general, it admitsinfinitely-many combinations of amplitude and frequency modu-lations (AM and FM, respectively). The standard approach is toenforce a non-negativity constraint on the AM, but this results indiscontinuities in the corresponding phase modulation (PM), andhence, an FM with discontinuities particularly when the under-lying AM-FM signal is over-modulated. In this letter, we analyzethe phase discontinuities and propose a technique to computesmooth AM and FM from the AS, by relaxing the non-negativityconstraint on the AM. The proposed technique iseffective athandling over-modulated signals. We present simulation results tosupport the theoretical calculations.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Signalbehandling hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Signal Processing hsv//eng
- Analytic signal
- amplitude modulation
- phase modulation
- over-modulation
Added entries (persons, corporate bodies, meetings, titles ...)
- Seelamantula, Chandra SekharDepartment of Electrical Engineering, Indian Institute of Science, Bangalore-560012, India (author)
- Department of Electrical Engineering, Indian Institute of Science, Bangalore-560012, India (creator_code:org_t)
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- In:IEEE Signal Processing Letters: IEEE Signal Processing Society19:10, s. 623-6261070-99081558-2361
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