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This contribution describes an accurate approach implementing a Time-to-Digital Converter using a Field-Programmable Gate Array (FPGA) device. Time differences with a FWHM better than 100 ps for 24 pairs of channels working simultaneously have been achieved. This was possible through the proper management of FPGA internal resources and by an accurate device calibration process minimizing the effect...
This document presents a persistence management model for reconfigurable SoC. This model provides an efficient mechanism for persistence to preserve data information of hardware components that are swapped out of dynamically reconfigurable areas, in order to allow the reinsertion of these components and to restart the execution path from the same point where they were interrupted when reinserted....
Among other detectors, the T2K neutrino experiment comprises three large time projection chambers segmented into over 124.000 electronics channels. The back-end electronics system is designed to distribute a reference clock to the front-end electronics, aggregate event data over seventy-two 2 Gbps optical links and format events that are sent via a standard PC to the global data acquisition system...
Computation of floating-point transcendental functions has a relevant importance in a wide variety of scientific applications, where the area cost, error and latency are important requirements to be attended. This paper describes a flexible FPGA implementation of a parameterizable floating-point library for computing sine, cosine, arctangent and exponential functions using the CORDIC algorithm. The...
The use of a DSP with peripherals, such as PWM modules, in the control of voltage source converters (VSC) is widely used in our days in FACTS. These peripherals allow some concurrent operation, the control and modulation algorithms can be executed at the same time, they have internal hardware which can be dedicated to producing the most common technique of space vector modulation (SVM) for VSC. Anyway,...
This paper studies the use of neural networks (NNs) for estimating the position of impinging photons in 7 ray detector modules for PET cameras based on multi-anode photomultiplier tubes (MA-PMTs). The detector under study is composed of a 49 times 49 times 10 mm3 continuous slab of LSO coupled to a flat panel H8500 MA-PMT. Four digitized signals from a discretized positioning circuit (DPC), which...
The use of a DSP with peripherals, such as PWM modules, in the control of voltage source converters (VSC) is widely used in our days in FACTS. These peripherals allow some concurrent operation, the control and modulation algorithms can be executed at the same time, they have internal hardware which can be dedicated to producing the most common technique of space vector modulation (SVM) for VSC. Anyway,...
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