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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.00464 |
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| _version_ | 1866913868778831872 |
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| author | Qu, Donghao Zhang, Jiajun Wu, Yajun Zhao, Zhang Yang, Yanbin Liu, Zixuan |
| author_facet | Qu, Donghao Zhang, Jiajun Wu, Yajun Zhao, Zhang Yang, Yanbin Liu, Zixuan |
| contents | This paper presents the design and validation of a digital receiver system developed for the next-generation radio interferometer projects. The receiver supports 8 analog inputs with 12-bit, 4GHz sampling and performs real-time signal processing using FPGA-based channelization. Field experiments were conducted to observe the Sun, a satellite beacon, and Cassiopeia A. Interference fringes were analyzed and modeled. Time delay compensation was implemented in two ways: theoretical calculation and Gaussian Process Regression (GPR) fitting. Results show sub-nanosecond consistency between the two methods. The field experiments demonstrate the receiver's suitability for future radio telescopes such as the BINGO-ABDUS project. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_00464 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Design and Validation of the Digital Receiver System for the next-generation radio interferometer Qu, Donghao Zhang, Jiajun Wu, Yajun Zhao, Zhang Yang, Yanbin Liu, Zixuan Instrumentation and Methods for Astrophysics This paper presents the design and validation of a digital receiver system developed for the next-generation radio interferometer projects. The receiver supports 8 analog inputs with 12-bit, 4GHz sampling and performs real-time signal processing using FPGA-based channelization. Field experiments were conducted to observe the Sun, a satellite beacon, and Cassiopeia A. Interference fringes were analyzed and modeled. Time delay compensation was implemented in two ways: theoretical calculation and Gaussian Process Regression (GPR) fitting. Results show sub-nanosecond consistency between the two methods. The field experiments demonstrate the receiver's suitability for future radio telescopes such as the BINGO-ABDUS project. |
| title | Design and Validation of the Digital Receiver System for the next-generation radio interferometer |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2506.00464 |