Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar
Abstract A fundamental challenge in the practical implementation of multistatic radar systems (MSRS) is the requirement for precise time and frequency synchronisation between the spatially separated radar nodes. The authors evaluate the performance of different classes of commercially available Glob...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | IET Radar, Sonar & Navigation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rsn2.12475 |
| _version_ | 1797338869026258944 |
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| author | Piers J. Beasley Nial Peters Colin Horne Matthew A. Ritchie |
| author_facet | Piers J. Beasley Nial Peters Colin Horne Matthew A. Ritchie |
| author_sort | Piers J. Beasley |
| collection | DOAJ |
| description | Abstract A fundamental challenge in the practical implementation of multistatic radar systems (MSRS) is the requirement for precise time and frequency synchronisation between the spatially separated radar nodes. The authors evaluate the performance of different classes of commercially available Global Navigation Satellite Systems (GNSS) timing receivers, Local Oscillators (LO) and GNSS Disciplined Oscillators (GNSSDOs) to determine the limitations of using one‐way GNSS Time and Frequency Transfer (TFT) in this application. From evaluating the performance of three pairs of GNSSDOs, it is concluded that one‐way GNSS TFT will likely be suitable only for the synchronisation of fully spatially coherent MSRS with carrier frequencies up to 100 MHz and waveform bandwidths up to 20 MHz. Whereas, in the case of short‐term spatially coherent MSRS, synchronisation of systems with carrier frequencies up to a few GHz and waveform bandwidths of over 100 MHz will likely be possible. The performance of the different classes of GNSSDOs during GNSS denial (holdover) are evaluated, where it is concluded that frequency offsets between LOs at the point of GNSS denial will often significantly contribute, or even dominate, the holdover performance. Analysis of two practical multistatic radar measurements verifies the function of using the GNSSDOs for wireless synchronisation of the ARESTOR MSRS. |
| first_indexed | 2024-03-08T09:38:03Z |
| format | Article |
| id | doaj.art-9bcb28d90556433aaf5b244c65a32485 |
| institution | Directory Open Access Journal |
| issn | 1751-8784 1751-8792 |
| language | English |
| last_indexed | 2024-03-08T09:38:03Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Radar, Sonar & Navigation |
| spelling | doaj.art-9bcb28d90556433aaf5b244c65a324852024-01-30T07:26:11ZengWileyIET Radar, Sonar & Navigation1751-87841751-87922024-01-01181234010.1049/rsn2.12475Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radarPiers J. Beasley0Nial Peters1Colin Horne2Matthew A. Ritchie3Department of Electronic and Electrical Engineering University College London London UKDepartment of Electronic and Electrical Engineering University College London London UKDepartment of Electronic and Electrical Engineering University College London London UKDepartment of Electronic and Electrical Engineering University College London London UKAbstract A fundamental challenge in the practical implementation of multistatic radar systems (MSRS) is the requirement for precise time and frequency synchronisation between the spatially separated radar nodes. The authors evaluate the performance of different classes of commercially available Global Navigation Satellite Systems (GNSS) timing receivers, Local Oscillators (LO) and GNSS Disciplined Oscillators (GNSSDOs) to determine the limitations of using one‐way GNSS Time and Frequency Transfer (TFT) in this application. From evaluating the performance of three pairs of GNSSDOs, it is concluded that one‐way GNSS TFT will likely be suitable only for the synchronisation of fully spatially coherent MSRS with carrier frequencies up to 100 MHz and waveform bandwidths up to 20 MHz. Whereas, in the case of short‐term spatially coherent MSRS, synchronisation of systems with carrier frequencies up to a few GHz and waveform bandwidths of over 100 MHz will likely be possible. The performance of the different classes of GNSSDOs during GNSS denial (holdover) are evaluated, where it is concluded that frequency offsets between LOs at the point of GNSS denial will often significantly contribute, or even dominate, the holdover performance. Analysis of two practical multistatic radar measurements verifies the function of using the GNSSDOs for wireless synchronisation of the ARESTOR MSRS.https://doi.org/10.1049/rsn2.12475distributed sensorsmultistatic radaroscillatorsradar detectionsensor fusion |
| spellingShingle | Piers J. Beasley Nial Peters Colin Horne Matthew A. Ritchie Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar IET Radar, Sonar & Navigation distributed sensors multistatic radar oscillators radar detection sensor fusion |
| title | Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar |
| title_full | Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar |
| title_fullStr | Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar |
| title_full_unstemmed | Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar |
| title_short | Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar |
| title_sort | global navigation satellite systems disciplined oscillator synchronisation of multistatic radar |
| topic | distributed sensors multistatic radar oscillators radar detection sensor fusion |
| url | https://doi.org/10.1049/rsn2.12475 |
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