Wang, Xiangrong ; Wu, Kun ; Wang, Xianghua ; Amin, Moeness ; Zoubir, Abdelhak M. (2024)
Synthetic Interferometry Exploiting Radar Motions.
In: IEEE Geoscience and Remote Sensing Letters
doi: 10.1109/LGRS.2024.3477711
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The instantaneous velocity of any moving object can be decomposed into two orthogonal components with reference to the observing radar, namely radial velocity along the radar line of sight (LoS) and transversal velocity perpendicular to the LoS. It has been shown that the measurement of transversal velocity can significantly improve the performance of both radar target tracking and classification. Furthermore, the precision of transversal velocity estimation is proportional to the baseline length using the static interferometry. However, large baseline is impractical in applications, such as automotive radar with restriction on the packaging size. This paper proposes synthetic interferometry exploiting radar motions. A large virtual baseline can be synthesized via moving the side-looking radar and synchronizing the received signals at two locations, thus improving the accuracy of transversal velocity measurement. We derive the conditions of time synchronization for successful interferometry in terms of the maximum moving distance and the maximum observation time. Both simulations and experiments have been conducted to validate the feasibility and effectiveness of the proposed synthetic interferometry.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Wang, Xiangrong ; Wu, Kun ; Wang, Xianghua ; Amin, Moeness ; Zoubir, Abdelhak M. |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthetic Interferometry Exploiting Radar Motions |
| Sprache: | Englisch |
| Publikationsjahr: | 10 Oktober 2024 |
| Verlag: | IEEE |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IEEE Geoscience and Remote Sensing Letters |
| DOI: | 10.1109/LGRS.2024.3477711 |
| Kurzbeschreibung (Abstract): | The instantaneous velocity of any moving object can be decomposed into two orthogonal components with reference to the observing radar, namely radial velocity along the radar line of sight (LoS) and transversal velocity perpendicular to the LoS. It has been shown that the measurement of transversal velocity can significantly improve the performance of both radar target tracking and classification. Furthermore, the precision of transversal velocity estimation is proportional to the baseline length using the static interferometry. However, large baseline is impractical in applications, such as automotive radar with restriction on the packaging size. This paper proposes synthetic interferometry exploiting radar motions. A large virtual baseline can be synthesized via moving the side-looking radar and synchronizing the received signals at two locations, thus improving the accuracy of transversal velocity measurement. We derive the conditions of time synchronization for successful interferometry in terms of the maximum moving distance and the maximum observation time. Both simulations and experiments have been conducted to validate the feasibility and effectiveness of the proposed synthetic interferometry. |
| Zusätzliche Informationen: | Early Access |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Nachrichtentechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Nachrichtentechnik > Signalverarbeitung |
| Hinterlegungsdatum: | 15 Okt 2024 14:17 |
| Letzte Änderung: | 15 Okt 2024 14:17 |
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