An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique
This paper describes the implementation of an improved clutter suppression method for the multiple pulse repetition time (PRT) technique based on simulated radar data. The suppression method is constructed using maximum likelihood methodology in time domain and is called parametric time domain metho...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2017/8173643 |
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| _version_ | 1832550323728678912 |
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| author | Yingjie Yu Yong Li |
| author_facet | Yingjie Yu Yong Li |
| author_sort | Yingjie Yu |
| collection | DOAJ |
| description | This paper describes the implementation of an improved clutter suppression method for the multiple pulse repetition time (PRT) technique based on simulated radar data. The suppression method is constructed using maximum likelihood methodology in time domain and is called parametric time domain method (PTDM). The procedure relies on the assumption that precipitation and clutter signal spectra follow a Gaussian functional form. The multiple interleaved pulse repetition frequencies (PRFs) that are used in this work are set to four PRFs (952, 833, 667, and 513 Hz). Based on radar simulation, it is shown that the new method can provide accurate retrieval of Doppler velocity even in the case of strong clutter contamination. The obtained velocity is nearly unbiased for all the range of Nyquist velocity interval. Also, the performance of the method is illustrated on simulated radar data for plan position indicator (PPI) scan. Compared with staggered 2-PRT transmission schemes with PTDM, the proposed method presents better estimation accuracy under certain clutter situations. |
| format | Article |
| id | doaj-art-042849180f684ba9945bbf99c7d80635 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-042849180f684ba9945bbf99c7d806352025-02-03T06:07:02ZengWileyAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/81736438173643An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time TechniqueYingjie Yu0Yong Li1School of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaThis paper describes the implementation of an improved clutter suppression method for the multiple pulse repetition time (PRT) technique based on simulated radar data. The suppression method is constructed using maximum likelihood methodology in time domain and is called parametric time domain method (PTDM). The procedure relies on the assumption that precipitation and clutter signal spectra follow a Gaussian functional form. The multiple interleaved pulse repetition frequencies (PRFs) that are used in this work are set to four PRFs (952, 833, 667, and 513 Hz). Based on radar simulation, it is shown that the new method can provide accurate retrieval of Doppler velocity even in the case of strong clutter contamination. The obtained velocity is nearly unbiased for all the range of Nyquist velocity interval. Also, the performance of the method is illustrated on simulated radar data for plan position indicator (PPI) scan. Compared with staggered 2-PRT transmission schemes with PTDM, the proposed method presents better estimation accuracy under certain clutter situations.http://dx.doi.org/10.1155/2017/8173643 |
| spellingShingle | Yingjie Yu Yong Li An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique Advances in Meteorology |
| title | An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique |
| title_full | An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique |
| title_fullStr | An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique |
| title_full_unstemmed | An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique |
| title_short | An Improved Clutter Suppression Method for Weather Radars Using Multiple Pulse Repetition Time Technique |
| title_sort | improved clutter suppression method for weather radars using multiple pulse repetition time technique |
| url | http://dx.doi.org/10.1155/2017/8173643 |
| work_keys_str_mv | AT yingjieyu animprovedcluttersuppressionmethodforweatherradarsusingmultiplepulserepetitiontimetechnique AT yongli animprovedcluttersuppressionmethodforweatherradarsusingmultiplepulserepetitiontimetechnique AT yingjieyu improvedcluttersuppressionmethodforweatherradarsusingmultiplepulserepetitiontimetechnique AT yongli improvedcluttersuppressionmethodforweatherradarsusingmultiplepulserepetitiontimetechnique |