Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter
Compact Polarimetric (CP) mode is a new dual-pol mode introduced in the last decade. The main current CP mode transmits circular polarized waves. Data in the form of Stokes parameters obtained by this mode has rotational invariance. In real engineering applications, transmit distortions in all dual-...
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2020-04-01
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| Series: | Leida xuebao |
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| Online Access: | http://radars.ie.ac.cn/article/doi/10.12000/JR19063?viewType=HTML |
| _version_ | 1827613559376314368 |
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| author | CHEN Shiqiang HONG Wen |
| author_facet | CHEN Shiqiang HONG Wen |
| author_sort | CHEN Shiqiang |
| collection | DOAJ |
| description | Compact Polarimetric (CP) mode is a new dual-pol mode introduced in the last decade. The main current CP mode transmits circular polarized waves. Data in the form of Stokes parameters obtained by this mode has rotational invariance. In real engineering applications, transmit distortions in all dual-pol modes, including the CP mode, cannot be directly compensated with external calibration methods. Therefore, it is necessary to analysis the influences caused by transmit distortions. Until now, the Maximum Normalized Error (MNE) parameter has already been proposed by existing researches to analyze polarimetric quality of the Polarimetric SAR (PolSAR) system. This paper has proposed an analysis method to analysis the influence of transmit distortions in polarimetric modes with circular polarimetric wave in transmission, based on the Axial Ratio (AR) parameter of real transmitted wave. Firstly, this paper has analyzed the influence of different transmit distortion sources to AR parameter with simulations. Meanwhile, this part has also demonstrated the influence of same distortion sources to the MNE parameter. Through comparison of this two results, this paper has concluded three advantages of the AR parameter over the MNE parameter. At last, the effectiveness of the proposed evaluation method has been verified using real measured GF-3 distortion data and test data obtained by experimental system, which transmit circular polarized waves. |
| first_indexed | 2024-03-09T08:41:30Z |
| format | Article |
| id | doaj.art-00244cf113704024b6ccf57f4add9d76 |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:41:30Z |
| publishDate | 2020-04-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-00244cf113704024b6ccf57f4add9d762023-12-02T16:34:54ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2020-04-019234335310.12000/JR19063Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio ParameterCHEN Shiqiang0HONG Wen1(Key Laboratory of Technology in Geospatial Information Processing and Application System, Beijing 100190, China)(Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China)(University of Chinese Academy of Sciences, Beijing 100049, China)(Key Laboratory of Technology in Geospatial Information Processing and Application System, Beijing 100190, China)(Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China)(University of Chinese Academy of Sciences, Beijing 100049, China)Compact Polarimetric (CP) mode is a new dual-pol mode introduced in the last decade. The main current CP mode transmits circular polarized waves. Data in the form of Stokes parameters obtained by this mode has rotational invariance. In real engineering applications, transmit distortions in all dual-pol modes, including the CP mode, cannot be directly compensated with external calibration methods. Therefore, it is necessary to analysis the influences caused by transmit distortions. Until now, the Maximum Normalized Error (MNE) parameter has already been proposed by existing researches to analyze polarimetric quality of the Polarimetric SAR (PolSAR) system. This paper has proposed an analysis method to analysis the influence of transmit distortions in polarimetric modes with circular polarimetric wave in transmission, based on the Axial Ratio (AR) parameter of real transmitted wave. Firstly, this paper has analyzed the influence of different transmit distortion sources to AR parameter with simulations. Meanwhile, this part has also demonstrated the influence of same distortion sources to the MNE parameter. Through comparison of this two results, this paper has concluded three advantages of the AR parameter over the MNE parameter. At last, the effectiveness of the proposed evaluation method has been verified using real measured GF-3 distortion data and test data obtained by experimental system, which transmit circular polarized waves.http://radars.ie.ac.cn/article/doi/10.12000/JR19063?viewType=HTMLpolarimetric sar (polsar)compact polarimetry (cp)axial ratio (ar)transmit distortionmaximum normalized error (mne) |
| spellingShingle | CHEN Shiqiang HONG Wen Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter Leida xuebao polarimetric sar (polsar) compact polarimetry (cp) axial ratio (ar) transmit distortion maximum normalized error (mne) |
| title | Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter |
| title_full | Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter |
| title_fullStr | Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter |
| title_full_unstemmed | Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter |
| title_short | Analysis on the Transmit Distortion of the Circular Polarized Wave Based on the Axial Ratio Parameter |
| title_sort | analysis on the transmit distortion of the circular polarized wave based on the axial ratio parameter |
| topic | polarimetric sar (polsar) compact polarimetry (cp) axial ratio (ar) transmit distortion maximum normalized error (mne) |
| url | http://radars.ie.ac.cn/article/doi/10.12000/JR19063?viewType=HTML |
| work_keys_str_mv | AT chenshiqiang analysisonthetransmitdistortionofthecircularpolarizedwavebasedontheaxialratioparameter AT hongwen analysisonthetransmitdistortionofthecircularpolarizedwavebasedontheaxialratioparameter |