Time-frequency radar processing for meteor detection

Chun Hsien Wen, John F. Doherty, John D. Mathews

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


In this paper, we present signal processing techniques to detect meteor returns from Arecibo Observatory 430-MHz UHF radar data. We exploit the characteristics of the transmit waveform in the frequency domain as well as in the time domain. Two detection methods are investigated. First, when a meteor is present in the radar return over several interpulse periods, there will be a periodic structure in frequency spectrum. By detecting this structure, we detect the presence of a meteor. Second, we construct a matched filter bank to detect the energy of different Doppler frequency components. When the energy exceeds a certain threshold, we declare meteor detection. We also find the altitude of a meteor by finding the peak of the matched filter output. Analytical and experimental results show that we can efficiently and reliably detect meteors using these methods.

Original languageEnglish (US)
Pages (from-to)501-510
Number of pages10
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number3
StatePublished - Mar 2004

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • General Earth and Planetary Sciences


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