Singular spectrum analysis applied to time-series measurements in a self-excited tube combustor

Andrew C. Nobles, Krishna K. Venkatesan, Galen B. King, Normand M. Laurendeau, Michael W. Renfro

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A study was conducted to demonstrate the use of the picosecond time-resolved laser-induced fluorescence (PITLIF) technique to measure hydroxyl (OH) time series and a dynamic pressure sensor to obtain pressure time series in a Schmidt tube combustor. The stationary portions of simultaneous hydroxyl and pressure time series were analyzed by employing singular spectrum analysis (SSA). The noise-reduction capabilities of SSA were discussed from the point of view of instability mitigation in propulsion systems. A fast Fourier transform (FFT) was applied to the original and reconstructed time series to demonstrate the noise-reduction capability of SSA. Successful reconstruction and noise reduction were also demonstrated for extremely noisy and nonstationary time series.

Original languageEnglish
Pages (from-to)1148-1151
Number of pages4
JournalJournal of Propulsion and Power
Issue number5
StatePublished - 2009

Bibliographical note

Funding Information:
This project was supported by the U.S. Air Force Office of Scientific Research under grant FA9550-06-1-0064, with Julian Tishkoff serving as technical monitor. We thank Matthew Gluesenkamp for his work in obtaining the experimental data for this investigation.

ASJC Scopus subject areas

  • Aerospace Engineering
  • Fuel Technology
  • Mechanical Engineering
  • Space and Planetary Science


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