Determination of phase difference of backscatter signals from coherent-on-receive microwave marine radar for wave measurement

Hwa Chien, Hao Yuan Cheng, Dennis B. Trizna

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

In present study, a X-band marine radar was installed at the northwestern coast of Taiwan. The IF signal from the super-heterodyne receiver of the marine radar was retrieved, amplified, band-pass filtered and digitized to be the raw dataset, from which the phase of transmitted and echo radar EM wave could be determined. Based on Doppler theory, the time rate change of the phases between succeeding pulses could be used for estimating the water particle velocity of wave orbital motion. Due to the fact that the magnetron in the marine radar produces random frequency jump, and leading to mis-estimate of the phase differences. We adopted the Ensemble Empirical Mode Decomposition method as a filter to exclude the effects of frequency jump. The results demonstrated the improved capability of coherent-on-receive marine radar for surface wave measurement.

Original languageEnglish
StatePublished - 2013
EventOCEANS 2013 MTS/IEEE San Diego Conference: An Ocean in Common - San Diego, CA, United States
Duration: 23 Sep 201326 Sep 2013

Conference

ConferenceOCEANS 2013 MTS/IEEE San Diego Conference: An Ocean in Common
Country/TerritoryUnited States
CitySan Diego, CA
Period23/09/1326/09/13

Keywords

  • Coherent-on-receive radar
  • Empirical mode decomposition
  • Microwave marine radar

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