A Coherent on Receive X-Band Marine Radar for Ocean Observations
Marine radars are increasingly popular for monitoring meteorological and oceanographic parameters such as ocean surface wind, waves and currents as well as bathymetry and shorelines. Within this paper a coherent on receive marine radar is introduced, which is based on an incoherent off the shelf pul...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/23/7828 |
| _version_ | 1797507260449030144 |
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| author | Jochen Horstmann Jan Bödewadt Ruben Carrasco Marius Cysewski Jörg Seemann Michael Streβer |
| author_facet | Jochen Horstmann Jan Bödewadt Ruben Carrasco Marius Cysewski Jörg Seemann Michael Streβer |
| author_sort | Jochen Horstmann |
| collection | DOAJ |
| description | Marine radars are increasingly popular for monitoring meteorological and oceanographic parameters such as ocean surface wind, waves and currents as well as bathymetry and shorelines. Within this paper a coherent on receive marine radar is introduced, which is based on an incoherent off the shelf pulsed X-band radar. The main concept of the coherentization is based on the coherent on receive principle, where the coherence is achieved by measuring the phase of the transmitted pulse from a leak in the radar circulator, which then serves as a reference phase for the transmitted pulse. The Doppler shift frequency can be computed from two consecutive pulse-pairs in the time domain or from the first moment of the Doppler spectrum inferred by means of a short time Fast Fourier Transform. From the Doppler shift frequencies, radial speed maps of the backscatter of the ocean surface are retrieved. The resulting backscatter intensity and Doppler speed maps are presented for horizontal as well as vertical polarization, and discussed with respect to meteorological and oceanographic applications. |
| first_indexed | 2024-03-10T04:46:01Z |
| format | Article |
| id | doaj.art-fe03cd41673e432097168679f041fa75 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T04:46:01Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-fe03cd41673e432097168679f041fa752023-11-23T02:59:48ZengMDPI AGSensors1424-82202021-11-012123782810.3390/s21237828A Coherent on Receive X-Band Marine Radar for Ocean ObservationsJochen Horstmann0Jan Bödewadt1Ruben Carrasco2Marius Cysewski3Jörg Seemann4Michael Streβer5Helmholtz-Zentrum Hereon, Max Planck Str.1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Max Planck Str.1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Max Planck Str.1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Max Planck Str.1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Max Planck Str.1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Max Planck Str.1, 21502 Geesthacht, GermanyMarine radars are increasingly popular for monitoring meteorological and oceanographic parameters such as ocean surface wind, waves and currents as well as bathymetry and shorelines. Within this paper a coherent on receive marine radar is introduced, which is based on an incoherent off the shelf pulsed X-band radar. The main concept of the coherentization is based on the coherent on receive principle, where the coherence is achieved by measuring the phase of the transmitted pulse from a leak in the radar circulator, which then serves as a reference phase for the transmitted pulse. The Doppler shift frequency can be computed from two consecutive pulse-pairs in the time domain or from the first moment of the Doppler spectrum inferred by means of a short time Fast Fourier Transform. From the Doppler shift frequencies, radial speed maps of the backscatter of the ocean surface are retrieved. The resulting backscatter intensity and Doppler speed maps are presented for horizontal as well as vertical polarization, and discussed with respect to meteorological and oceanographic applications.https://www.mdpi.com/1424-8220/21/23/7828marine radarcoherent radarsurface wavesgrazing incidenceDoppler radarcoherent on receive radar |
| spellingShingle | Jochen Horstmann Jan Bödewadt Ruben Carrasco Marius Cysewski Jörg Seemann Michael Streβer A Coherent on Receive X-Band Marine Radar for Ocean Observations Sensors marine radar coherent radar surface waves grazing incidence Doppler radar coherent on receive radar |
| title | A Coherent on Receive X-Band Marine Radar for Ocean Observations |
| title_full | A Coherent on Receive X-Band Marine Radar for Ocean Observations |
| title_fullStr | A Coherent on Receive X-Band Marine Radar for Ocean Observations |
| title_full_unstemmed | A Coherent on Receive X-Band Marine Radar for Ocean Observations |
| title_short | A Coherent on Receive X-Band Marine Radar for Ocean Observations |
| title_sort | coherent on receive x band marine radar for ocean observations |
| topic | marine radar coherent radar surface waves grazing incidence Doppler radar coherent on receive radar |
| url | https://www.mdpi.com/1424-8220/21/23/7828 |
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