| DOI | Resolve DOI: https://doi.org/10.1117/12.2562967 |
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| Author | Search for: Ljusic, Zoran1; Search for: Caputa, Krzysztof1; Search for: Zhao, Erning1 |
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| Affiliation | - National Research Council Canada. Herzberg Astronomy and Astrophysics
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| Format | Text, Article |
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| Conference | X-ray, Optical, and Infrared Detectors for Astronomy IX, December 14-18, 2020, Online Only, United States |
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| Physical description | 9 p. |
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| Subject | SKA; ADC; optical; RFI; interfaces; control systems; electronics; field programmable gate arrays; logic; analog electronics; electromagnetic coupling; optical design; radio optics; telescopes |
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| Abstract | The Single Pixel Feed Receiver (SPFRx) is a Sub-Element of the Square Kilometer Array (SKA) Dish Element. Its main function is receiving RF signals captured by the SKA-mid Dish (DSH) and pre-amplified by the Single Pixel Feed (SPF) Sub-Element components. The main tasks of the SPFRx hardware, firmware, and software is to perform analog to digital conversion on the incoming RF signals and to send the digital RF samples to the SKA Central Signal Processing (CSP) Element as 100G Ethernet packets. For analog to digital conversion, of SKA-mid Bands 1-3 a 12-bit Analog to Digital Converter (ADC) is used. The ADC and its supporting electronics reside on an electronic board placed within a metal box on the telescope’s indexer. A number of measures are taken to minimize Radio Frequency Interference (RFI) created by the switching elements on the board. One of the major measures is using an optical link for performing monitor and control function of the internal electronics by the Local Monitor Control (LMC) module residing within the telescope’s base. |
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| Publication date | 2020-12-13 |
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| Publisher | SPIE |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 2a99a75c-0c27-4362-8f64-ff4881790d7a |
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| Record created | 2022-06-27 |
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| Record modified | 2022-06-27 |
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