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AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications

Abstract: 

For their analysis with conventional signal processing tools, non-stationary signals are assumed to be stationary (or at least wide-sense stationary) in short intervals. While this approach allows them to be studied, it disregards the temporal evolution of their statistics. As such, to analyze this type of signals, it is desirable to use a representation that registers and characterizes the temporal changes in the frequency content of the signals, as these changes may occur in single or multiple periodic ways. Over the last few years, the amplitude modulation approach has shown useful for the analysis and synthesis of non-stationary signals across multiple applications, including telecommunications, speech and music perception, and biological signals (e.g., electrocardiogram, electroencephalogram and respiration). Despite their usefulness, no open-source toolkits exist that are application agnostic. In this work, we fill this gap. More specifically, we present AMA, the open-source Amplitude Modulation Analysis toolkit for MATLAB, Octave and Python. The toolkit provides functions to compute forward and inverse transformations between time, frequency, time-frequency and frequency-modulation-frequency domains for single- or multichannel signals. Additionally, a graphical user interface is provided for real-time exploration of the signals and their representations across different domains. Lastly, example data and scripts are provided. With the development of this toolkit, we hope to facilitate the study of non-stationary signals in particular for the analysis of second-order periodicities. The toolkit is available at https://github.com/MuSAELab.

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Paper Details

Authors:
Raymundo Cassani, Isabela Albuquerque, Joao Monteiro, Tiago H. Falk
Submitted On:
7 November 2019 - 7:21pm
Short Link:
Type:
Poster
Event:
Presenter's Name:
Raymundo Cassani
Paper Code:
F4NTD7L82HQ
Document Year:
2019
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[1] Raymundo Cassani, Isabela Albuquerque, Joao Monteiro, Tiago H. Falk, "AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications", IEEE SigPort, 2019. [Online]. Available: http://sigport.org/4927. Accessed: Nov. 11, 2019.
@article{4927-19,
url = {http://sigport.org/4927},
author = {Raymundo Cassani; Isabela Albuquerque; Joao Monteiro; Tiago H. Falk },
publisher = {IEEE SigPort},
title = {AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications},
year = {2019} }
TY - EJOUR
T1 - AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications
AU - Raymundo Cassani; Isabela Albuquerque; Joao Monteiro; Tiago H. Falk
PY - 2019
PB - IEEE SigPort
UR - http://sigport.org/4927
ER -
Raymundo Cassani, Isabela Albuquerque, Joao Monteiro, Tiago H. Falk. (2019). AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications. IEEE SigPort. http://sigport.org/4927
Raymundo Cassani, Isabela Albuquerque, Joao Monteiro, Tiago H. Falk, 2019. AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications. Available at: http://sigport.org/4927.
Raymundo Cassani, Isabela Albuquerque, Joao Monteiro, Tiago H. Falk. (2019). "AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications." Web.
1. Raymundo Cassani, Isabela Albuquerque, Joao Monteiro, Tiago H. Falk. AMA: An Open-source Amplitude Modulation Analysis Toolkit for Signal Processing Applications [Internet]. IEEE SigPort; 2019. Available from : http://sigport.org/4927