[ { "id": "authors:v0xr7-5x425", "collection": "authors", "collection_id": "v0xr7-5x425", "cite_using_url": "https://authors.library.caltech.edu/records/v0xr7-5x425", "type": "conference_item", "title": "Assessing the RFI environment of the DSA-2000", "book_title": "Proceedings of the 4th URSI Atlantic RadioScience Conference \u2013 AT-RASC 2024", "author": [ { "family_name": "Hellbourg", "given_name": "Gregory", "orcid": "0000-0002-8191-3885", "clpid": "Hellbourg-Gregory" } ], "abstract": "
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The Deep Synoptic Array DSA-2000 is a future survey radio telescope that will operate in the 0.7-2 GHz range. This frequency band is almost fully allocated to active services, which makes it challenging to radio astronomy operations due to the high probability of radio frequency interference (RFI). This paper provides a comprehensive list of RFI in the DSA-2000 band, and describes the protocol employed to establish it. It also summarizes the RFI mitigation strategy currently planned for the future telescope.
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", "doi": "10.46620/ursiatrasc24/zzdf4198", "isbn": "978-9-4639-6-8102", "publisher": "URSI \u2013 International Union of Radio Science", "place_of_publication": "Piscataway, NJ", "publication_date": "2024-05" }, { "id": "authors:ft77f-4dx60", "collection": "authors", "collection_id": "ft77f-4dx60", "cite_using_url": "https://authors.library.caltech.edu/records/ft77f-4dx60", "type": "conference_item", "title": "RFI Considerations for the DSA-2000", "book_title": "2024 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)", "author": [ { "family_name": "Hellbourg", "given_name": "Gregory", "orcid": "0000-0002-8191-3885", "clpid": "Hellbourg-Gregory" }, { "family_name": "Hallinan", "given_name": "Gregg", "orcid": "0000-0002-7083-4049", "clpid": "Hallinan-G" }, { "family_name": "Prayag", "given_name": "Vinand", "clpid": "Prayag-Vinand" }, { "family_name": "Kapp", "given_name": "Francois", "orcid": "0000-0002-1875-3436", "clpid": "Kapp-Francois-B" } ], "abstract": "
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The DSA-2000 is a large astronomical survey in-terferometer currently being designed, and will be composed of 2,000 antennas spanning 700 - 2,000 MHz. The frequency coverage of the instrument makes it particularly vulnerable to Radio Frequency Interference as it overlaps with a high occupancy region of the spectrum. This paper describes the strategies employed to mitigate the effect of interference and ensure the scientific relevance of the telescope.
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", "doi": "10.23919/usnc-ursinrsm60317.2024.10465100", "isbn": "978-1-946815-19-4", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2024-01", "pages": "187-188" }, { "id": "authors:6scan-jn317", "collection": "authors", "collection_id": "6scan-jn317", "cite_using_url": "https://authors.library.caltech.edu/records/6scan-jn317", "type": "conference_item", "title": "Dynamic RFI Management in Radio Astronomy Using Pseudonymetry", "book_title": "2024 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)", "author": [ { "family_name": "Hellbourg", "given_name": "Gregory", "orcid": "0000-0002-8191-3885", "clpid": "Hellbourg-Gregory" }, { "family_name": "Patwari", "given_name": "Neal", "orcid": "0000-0003-3440-2043", "clpid": "Patwari-Neal" }, { "family_name": "Weldegebriel", "given_name": "Meles", "clpid": "Weldegebriel-Meles" }, { "family_name": "Zhang", "given_name": "Ning", "clpid": "Zhang-Ning" } ], "abstract": "
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This paper addresses dynamic spectrum management and enforcement by introducing the concept of pseudonymetry to reliably and securely identify interfering transmissions during spectral resource blocks allocated to passive services. Identified interfering transmitters are notified through a shared database, and requested to stop their operation to protect the passive service observation.
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", "doi": "10.23919/usnc-ursinrsm60317.2024.10464513", "isbn": "978-1-946815-19-4", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2024-01", "pages": "282-283" }, { "id": "authors:r5tj7-c7w39", "collection": "authors", "collection_id": "r5tj7-c7w39", "cite_using_url": "https://authors.library.caltech.edu/records/r5tj7-c7w39", "type": "conference_item", "title": "Flagging strategy for the DSA-2000", "book_title": "Proceedings of the 4th URSI Atlantic RadioScience Conference \u2013 AT-RASC 2024", "author": [ { "family_name": "Hellbourg", "given_name": "Gregory", "orcid": "0000-0002-8191-3885", "clpid": "Hellbourg-Gregory" } ], "abstract": "
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The DSA-2000 radio telescope is a next generation interferometer with stringent requirements in terms of real-time processing, sensitivity, and data quality. Corrupted data need to be identified and excised in real-time from the data processing chain as the system architecture does not support the storage and accumulation of the data. This paper addresses the problem of efficient and fast data flagging for DSA-2000.
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", "doi": "10.46620/ursiatrasc24/forz8482", "isbn": "978-9-4639-6-8102", "publisher": "URSI \u2013 International Union of Radio Science", "place_of_publication": "Piscataway, NJ", "publication_date": "2024", "pages": "1-4" } ]