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SKA Science Data Handling & Processing

Lead Research Organisation: UNIVERSITY OF CAMBRIDGE
Department Name: Physics

Abstract

This project is to support the Science Data Processor (SDP) component of the SKA. The SDP is the element of the telescope responsible for processing various observed data into required data products (which consists of combined and processed raw data together with metadata), long-term preservation of these data products, and delivery of these products to SKAO and scientists working in SKA Regional Centres (SRCs).

This project deals with the construction of the SDP system, its support in integration, testing and commissioning, and the development and demonstration of increasingly capable SDP pipeline performance are the key components of this project.

Publications

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Gueuning Q (2025) A Broadband Multipole Method for Accelerated Mutual Coupling Analysis of Large Irregular Arrays Including Rotated Antennas in IEEE Transactions on Antennas and Propagation

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O'Hara O (2025) Uncovering the effects of array mutual coupling in 21-cm experiments with the SKA-Low radio telescope in Monthly Notices of the Royal Astronomical Society

 
Title ycliu23/Cambridge-SKA-SDC3-Foregrounds: Cambridge SKA SDC3a pipeline 
Description Cambridge SKA SDC3 Foregrounds The data analysis pipeline, designed for the Square Kilometre Array Science Data Challenge 3a (SKA SDC3a), is intended to separate the 21-cm signal from astrophysical foregrounds. The foreground mitigation is based on a hybrid strategy based on both foreground removal with Gaussian Process Regression (GPR) models and foreground avoidance. Nested sampling is incorporated in the pipeline for Bayesian inference of the model parameters. A flowchart is provided in Cambridge-SKA-SDC3-Foregrounds/illustration to illustrate the SKA data processing, and scripts are given in Cambridge-SKA-SDC3-Foregrounds/pipeline for realization of the steps implemented in the workflow. 
Type Of Technology Software 
Year Produced 2023 
Open Source License? Yes  
Impact A full pipeline for the detection of the 21-cm line from Cosmic Hydrogen to be used with the SKA telescope 
URL https://zenodo.org/doi/10.5281/zenodo.10223261