A software infrastructure for firmware-software interaction: The case of TPMs

Magro, Alessio; Chiello, Riccardo; Albanese, Cristian; Baker, J. O.; Comoretto, G.; DeMarco, Andrea; Gravina, A.; Roberts, M.H.; Adami, Kristian Zarb

doi:10.1109/icsigsys.2017.7967039

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…The bottom layer shows monitorable and controllable hardware components that are distributed across the enclosure and receivers. A variety of communication protocols are used, including: the Python FPGA Board Interface Layer (PyFABIL) [7] for the TPM, SCPI for the VNA, a command-line serial interface to the uController, and proprietary USB and serial-based protocols for the temperature and power probes. New PyFABIL plugins were implemented to match the customised functionality of the FPGA firmware.…”

Section: Digital Backendmentioning

confidence: 99%

The REACH Digital Backend

Magro,

Chiello,

Razavi-Ghods

et al. 2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

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The Radio Experiment for the Analysis of Cosmic Hydrogen (REACH) is a sky-averaged 21-cm experiment consisting of an ultra-wideband spectrometer that aims to improve current observations through in-field calibration of the receiver and by using a novel Bayesian data analysis system to fully parameterise the signal, foregrounds and instrument noise. The system is currently in the final stages of assembly and will be deployed on site in the first half of 2023. This paper focuses on the digital backend and management software of REACH, providing a description of the receiver and digital hardware, signal processing chain, and supporting instrument and observation management software.

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Section: Digital Backendmentioning

confidence: 99%

The REACH Digital Backend

Magro,

Chiello,

Razavi-Ghods

et al. 2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

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show abstract

“…Even if a real-time digital beamformer is present in this system, the beamforming has been performed offline exploiting all the digitized signals to achieve more flexibility e.g., perform offline calibration. A server hosts the monitoring and control software which can initialize and configure the TPMs [35], as well as the data acquisition system [36].…”

Section: The Antenna Under Test and Acquisition Systemmentioning

confidence: 99%

Large Horizontal Near-Field Scanner Based on a Non-Tethered Unmanned Aerial Vehicle

Ciorba

Virone

Paonessa

et al. 2022

IEEE Open J. Antennas Propag.

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A horizontal planar scanner with an approximate size of 40 m × 40 m has been implemented using the Unmanned Aerial Vehicle (UAV) technology. The UAV is not wired to the ground to maintain the flexibility and short setup time of a non-tethered flight. In this configuration, the UAV-mounted continuous-wave source is not phase-locked to the on-the-ground receiver. A dual-polarized reference antenna placed on the ground is hence used to retrieve the relevant phase information. The presented approach has been applied on the Pre -Aperture Array Verification System (Pre -AAVS1) of the Square Kilometre Array, which is a digital beamformed array with 16 active elements. An inverse source technique has been applied on measured Near-Field (NF) data acquired on two different sets of points (one for each electric field component) from all the receiver channels. In this way, Embedded Element Patterns (EEPs), array calibration coefficients and pattern have been determined from NF data only. The achieved results have been validated using a complementary set of Far-Field (FF) measurements and simulations.INDEX TERMS Antenna measurements, near-field measurements, unmanned aerial vehicle, digital beamforming array, phased-array radio telescopes, array calibration.

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“…The board is controlled using an AXI4lite bridge to the 1 Gb Ethernet port, with each element seen as a memory mapped portion of the board address space. A map of this space is generated automatically at compile time and used by the control software to address each element by name (Magro et al 2017).…”

Section: Digital Backendmentioning

confidence: 99%

“…The main features of the acquisition system are summarized in Table 1. The ADU is managed using the monitoring and control software prototyped for the LFAA and uses the UniBoard Control Protocol for communication between the board and a compute server (Magro et al 2017). The management software runs on the server and can read from and write to the FPGA memory address and other devices on the board.…”

Section: Digital Backendmentioning

confidence: 99%

The Northern Cross fast radio burst project – I. Overview and pilot observations at 408 MHz

Locatelli

Bernardi

Bianchi

et al. 2020

Monthly Notices of the Royal Astronomical Society

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Fast radio bursts remain one of the most enigmatic astrophysical sources. Observations have significantly progressed over the last few years, thanks to the capabilities of new radio telescopes and the refurbishment of existing ones. Here we describe the upgrade of the Northern Cross radio telescope, operating in the 400-416 MHz frequency band, with the ultimate goal of turning the array into a dedicated instrument to survey the sky for fast radio bursts. We present test observations of the pulsar B0329+54 to characterize the system performance and forecast detectability. Observations with the system currently in place are still limited by modest sky coverage (∼ 9.4 deg 2 ) and biased by smearing of high dispersion measure events within each frequency channels. In its final, upgraded configuration, however, the telescope will be able to carry out unbiased fast radio burst surveys over a ∼ 350 deg 2 instantaneous field of view up to z ∼ 5, with a (nearly constant) ∼ 760 (τ/ms) −0.5 mJy rms sensitivity.

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A software infrastructure for firmware-software interaction: The case of TPMs

Cited by 9 publications

References 2 publications

The REACH Digital Backend

The REACH Digital Backend

Large Horizontal Near-Field Scanner Based on a Non-Tethered Unmanned Aerial Vehicle

The Northern Cross fast radio burst project – I. Overview and pilot observations at 408 MHz

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