Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures
Coherently combining distributed apertures adjusts the transmitted/received signals of multiple distributed small apertures, allowing coordinated distributed systems to obtain high power aperture products at much lower cost than large aperture. This is a promising and viable technology as an alterna...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
China Science Publishing & Media Ltd. (CSPM)
2023-12-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | https://radars.ac.cn/cn/article/doi/10.12000/JR23195 |
| _version_ | 1797372461693534208 |
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| author | Xinghua LIU Guoyu WANG Zhenhai XU Liandong WANG |
| author_facet | Xinghua LIU Guoyu WANG Zhenhai XU Liandong WANG |
| author_sort | Xinghua LIU |
| collection | DOAJ |
| description | Coherently combining distributed apertures adjusts the transmitted/received signals of multiple distributed small apertures, allowing coordinated distributed systems to obtain high power aperture products at much lower cost than large aperture. This is a promising and viable technology as an alternative to using large apertures. This study describes the concept and principles of coherently combining distributed apertures. Depending on whether external signal inputs at the combination destination are necessary, the implementation architecture of coherent combination is classified into two categories: closed- and open-loop. The development of coherently combining distributed apertures and their application in fields such as missile defense, deep space telemetry control, radar detection over ultralong range, and radio astronomy are then comprehensively presented. Furthermore, key techniques for aligning the time and phase of the transmitted/received signals for each aperture are elaborated, which are also necessary for coherently combining distributed apertures, including high-precision distributed time-frequency transfer and synchronization, and coherently combining parameters estimation, measurement and calibration, and prediction. Finally, summary is presented, and the scope of future works in this field is explored. |
| first_indexed | 2024-03-08T18:36:04Z |
| format | Article |
| id | doaj.art-bb3c0a7fcfc543d598110776e1b427e4 |
| institution | Directory Open Access Journal |
| issn | 2095-283X |
| language | English |
| last_indexed | 2024-03-08T18:36:04Z |
| publishDate | 2023-12-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-bb3c0a7fcfc543d598110776e1b427e42023-12-29T12:27:27ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2023-12-011261229124810.12000/JR23195R23195Review of Principles, Development and Technical Implementation of Coherently Combining Distributed AperturesXinghua LIU0Guoyu WANG1Zhenhai XU2Liandong WANG3State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics & Information System, Luoyang 471003, ChinaState Key Laboratory of Complex Electromagnetic Environment Effects on Electronics & Information System, Luoyang 471003, ChinaState Key Laboratory of Complex Electromagnetic Environment Effects on Electronics & Information System, National University of Defense Technology, Changsha 410073, ChinaState Key Laboratory of Complex Electromagnetic Environment Effects on Electronics & Information System, Luoyang 471003, ChinaCoherently combining distributed apertures adjusts the transmitted/received signals of multiple distributed small apertures, allowing coordinated distributed systems to obtain high power aperture products at much lower cost than large aperture. This is a promising and viable technology as an alternative to using large apertures. This study describes the concept and principles of coherently combining distributed apertures. Depending on whether external signal inputs at the combination destination are necessary, the implementation architecture of coherent combination is classified into two categories: closed- and open-loop. The development of coherently combining distributed apertures and their application in fields such as missile defense, deep space telemetry control, radar detection over ultralong range, and radio astronomy are then comprehensively presented. Furthermore, key techniques for aligning the time and phase of the transmitted/received signals for each aperture are elaborated, which are also necessary for coherently combining distributed apertures, including high-precision distributed time-frequency transfer and synchronization, and coherently combining parameters estimation, measurement and calibration, and prediction. Finally, summary is presented, and the scope of future works in this field is explored.https://radars.ac.cn/cn/article/doi/10.12000/JR23195coherently combining distributed aperturesdistributed arraytime-frequency transfercoherence degradation correction |
| spellingShingle | Xinghua LIU Guoyu WANG Zhenhai XU Liandong WANG Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures Leida xuebao coherently combining distributed apertures distributed array time-frequency transfer coherence degradation correction |
| title | Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures |
| title_full | Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures |
| title_fullStr | Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures |
| title_full_unstemmed | Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures |
| title_short | Review of Principles, Development and Technical Implementation of Coherently Combining Distributed Apertures |
| title_sort | review of principles development and technical implementation of coherently combining distributed apertures |
| topic | coherently combining distributed apertures distributed array time-frequency transfer coherence degradation correction |
| url | https://radars.ac.cn/cn/article/doi/10.12000/JR23195 |
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