Learning and feature extraction based fundamental frequency determination algorithm in very low SNR scenario

Shiang Chih Hua, Jian Jiun Ding, Chih Hao Wang, Liang Yu Ouyang, Jin Yu Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Fundamental frequency determination is critical for music and radar signal analysis. In practice, the fundamental frequency is hard to be determined precisely especially when the signal-to-noise ratio (SNR) is low. In this paper, we propose an algorithm using both feature extraction and machine learning to determine fundamental frequency precisely. First, several features, including the correlation in the time-frequency domain and the differences to the previous/ next local minima, are extracted. Then, a learning-based classifier is applied. The proposed algorithm can estimate the fundamental frequency accurately even when the SNR is about -9dB and the signal length is only 4 seconds.

Original languageEnglish
Title of host publication2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133201
StatePublished - 2020
Event52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online
Duration: 10 Oct 202021 Oct 2020

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2020-October
ISSN (Print)0271-4310

Conference

Conference52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
CityVirtual, Online
Period10/10/2021/10/20

Keywords

  • Feature extraction
  • Fundamental frequency
  • Machine learning
  • Radar signal
  • Spectrum analysis

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