Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters
Interference Synthetic Aperture Radar based on the Global Navigation Satellite System (GNSSInSAR) uses in-orbit navigation satellites as transmitters of opportunity and receivers are deployed near the ground. Continuous regional observation can be achieved by the constellation and repeat-pass charac...
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2019-10-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/article/doi/10.12000/JR19065?viewType=HTML |
| _version_ | 1827612835289497600 |
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| author | ZHANG Lingzhi LIU Feifeng HU Cheng |
| author_facet | ZHANG Lingzhi LIU Feifeng HU Cheng |
| author_sort | ZHANG Lingzhi |
| collection | DOAJ |
| description | Interference Synthetic Aperture Radar based on the Global Navigation Satellite System (GNSSInSAR) uses in-orbit navigation satellites as transmitters of opportunity and receivers are deployed near the ground. Continuous regional observation can be achieved by the constellation and repeat-pass characteristics of the navigation satellites. Continuous-time data collection is required for 1D/3D deformation retrieval of the scene, just like city, bridge, and slope. Since the navigation satellites are not strictly repeat pass and time of repeat pass is uncertain, the original data redundancy is high and interception amount is large when data are aligned, reducing the effect of data. This study focuses on the time accuracy of data acquisition in deformation retrieval of GNSS-InSAR and proposes a repeat-pass data acquisition optimization model, which combines the actual trajectory with the STK, two-line element set prediction trajectory, and sliding window trajectory of the spatial coherence coefficient. Data are aligned to determine the time interval of the adjacent navigation satellites, enabling accurate GNSS-InSAR data acquisition and ensuring effective data accumulation time under reduced original data redundancy. The measured data show the effectiveness of the proposed method. |
| first_indexed | 2024-03-09T08:31:02Z |
| format | Article |
| id | doaj.art-b0d6b1827d4f4a53b34b37c3f21e1752 |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:31:02Z |
| publishDate | 2019-10-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-b0d6b1827d4f4a53b34b37c3f21e17522023-12-02T20:15:09ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2019-10-018562463010.12000/JR19065Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS TransmittersZHANG Lingzhi0LIU Feifeng1HU Cheng2(Radar Research Laboratory, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)(Key Laboratory of Electronic and Information Technology in Satellite Navigation (Beijing Institute of Technology), Ministry of Education, Beijing 100081, China)(Radar Research Laboratory, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)(Key Laboratory of Electronic and Information Technology in Satellite Navigation (Beijing Institute of Technology), Ministry of Education, Beijing 100081, China)(Radar Research Laboratory, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)(Key Laboratory of Electronic and Information Technology in Satellite Navigation (Beijing Institute of Technology), Ministry of Education, Beijing 100081, China)Interference Synthetic Aperture Radar based on the Global Navigation Satellite System (GNSSInSAR) uses in-orbit navigation satellites as transmitters of opportunity and receivers are deployed near the ground. Continuous regional observation can be achieved by the constellation and repeat-pass characteristics of the navigation satellites. Continuous-time data collection is required for 1D/3D deformation retrieval of the scene, just like city, bridge, and slope. Since the navigation satellites are not strictly repeat pass and time of repeat pass is uncertain, the original data redundancy is high and interception amount is large when data are aligned, reducing the effect of data. This study focuses on the time accuracy of data acquisition in deformation retrieval of GNSS-InSAR and proposes a repeat-pass data acquisition optimization model, which combines the actual trajectory with the STK, two-line element set prediction trajectory, and sliding window trajectory of the spatial coherence coefficient. Data are aligned to determine the time interval of the adjacent navigation satellites, enabling accurate GNSS-InSAR data acquisition and ensuring effective data accumulation time under reduced original data redundancy. The measured data show the effectiveness of the proposed method.http://radars.ie.ac.cn/article/doi/10.12000/JR19065?viewType=HTMLinterference synthetic aperture radar based on the global navigation satellite system (gnssinsar)deformation retrievaldata acquisition optimization |
| spellingShingle | ZHANG Lingzhi LIU Feifeng HU Cheng Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters Leida xuebao interference synthetic aperture radar based on the global navigation satellite system (gnssinsar) deformation retrieval data acquisition optimization |
| title | Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters |
| title_full | Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters |
| title_fullStr | Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters |
| title_full_unstemmed | Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters |
| title_short | Optimization Method and Analysis of Data Acquisition Strategy Based on Interference SAR with GNSS Transmitters |
| title_sort | optimization method and analysis of data acquisition strategy based on interference sar with gnss transmitters |
| topic | interference synthetic aperture radar based on the global navigation satellite system (gnssinsar) deformation retrieval data acquisition optimization |
| url | http://radars.ie.ac.cn/article/doi/10.12000/JR19065?viewType=HTML |
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