Adaptive downsampling of traces with FPGAs

Visa enkel post
dc.contributor.authorFredriksson, Anton
dc.contributor.authorRahmn, Lukas
dc.contributor.departmentChalmers tekniska högskola / Institutionen för fysiksv
dc.contributor.examinerHeinz, Andreas
dc.contributor.supervisorJohansson, Håkan
dc.date.accessioned2020-06-09T11:34:55Z
dc.date.available2020-06-09T11:34:55Z
dc.date.issued2020sv
dc.date.submitted2019
dc.description.abstractModern nuclear physics experiments produce large amounts of data. It has become custom to record and store signal traces, which can benefit from compression algorithms. General-purpose compression methods do not exploit the characteristics of the traces and are ill-suited for implementation on Field-Programmable Gate Arrays (FPGAs). We propose a lossy algorithm based on downsampling. Data reduction is achieved by replacing variable-length groups of samples with their average. The lengths of the groups are chosen according to their significance, which is determined based on the estimated signal noise. This results in an adaptive downsampling of the signal trace. The compression routine also assists subsequent analysis, by reducing the stored signal fluctuations due to noise. A detailed algorithm description is provided, accompanied by openly available implementations for both FPGAs and PCs (VHDL and C++).sv
dc.identifier.coursecodeTIFX05sv
dc.identifier.urihttps://hdl.handle.net/20.500.12380/300814
dc.language.isoengsv
dc.setspec.uppsokPhysicsChemistryMaths
dc.subjectHDLsv
dc.subjectData acquisitionsv
dc.subjectFront-end electronicssv
dc.subjectDownsamplingsv
dc.subjectLossy compressionsv
dc.titleAdaptive downsampling of traces with FPGAssv
dc.type.degreeExamensarbete för masterexamensv
dc.type.uppsokH
local.programmeComplex adaptive systems (MPCAS), MSc
Ladda ner
Original bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
Master Thesis Fredriksson_Rahmn_Adaptive_downsampling_of_traces_with_FPGAs.pdf
Storlek:
1.8 MB
Format:
Adobe Portable Document Format
Beskrivning:
Ladda ner
License bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
license.txt
Storlek:
1.14 KB
Format:
Item-specific license agreed upon to submission
Beskrivning:
Ladda ner
Samling
Examensarbeten för masterexamen