Search results for: ACCELERATION SIGNAL PRE-PROCESSING

• Springer Topics in Signal Processing

  Journals

  ISSN: 1866-2609 , eISSN: 1866-2617

• SIGNAL PROCESSING-IMAGE COMMUNICATION

  Journals

  ISSN: 0923-5965 , eISSN: 1879-2677

• Acoustic signal processing in passive sonar system with towed array

  Publication

  • M. Rudnicki
  • A. Raganowicz
  • J. Schmidt

  - HYDROACOUSTICS - Year 2008

  W referacie opisano przetwarzanie sygnałów akustycznych w pasywnym systemie hydrolokacyjnym. W pojęciu ''przetwarzanie sygnałów akustycznych'' mieszczą się wszelkie operacje wykonywane na sygnałach analogowych tj. wzmacnianie, filtracja i próbkowanie, jak również operacje na sygnałach cyfrowych uzyskanych w procesie próbkowania. Do operacji cyfrowych wykonywanych w systemie zalicza się synchronizację, konwersję, sortowanie, wytwarzanie...

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• Improved method of signal processing used in low-coherent systems

  Publication

  • M. Szczerska

  - ACTA PHYSICA POLONICA A - Year 2008

  W artykule przedstawiono nowe,opracowane metody przetwarzania sygnału w układach niskokoherencyjnych. W układach niskokoherencyjnych z analizą sygnału w dziedzinie czasu zaproponowano wykorzystanie źródeł syntezowanych, natomiast w przypadku układów z przetwarzaniem sygnału w dziedzinie widma zaproponowano metodę opartą na pomiarze przesunięcia widma sygnału pomiarowego. Wyniki przeprowadzonych badań eksperymentalnych zamieszczone...

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• Digital Signal Processing for Hydroacoustic System in Biomimetic Underwater Vehicle

  Publication

  • P. Piskur
  • M. Gasiorowski

  - Nase More - Year 2020

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• Guided waves in steel rails - experimental works and wavelet signal processing

  Publication

  • M. Rucka
  • K. Wilde

  - Key Engineering Materials - Year 2007

  W artykule zaprezentowano analizę falkową pomierzonych eksperymentalnie fal sprężystych wzbudzanych w szynach kolejowych.

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• Guided Waves in Steel Rails – Experimental Works and Wavelet Signal Processing

  Publication

  • M. Rucka
  • K. Wilde

  - Year 2007

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• Usage of the Gstreamer framework for generation, analysis, processing and visualization of sonar signal

  Publication

  • K. Czarnecki
  • D. Dąbrowski

  - HYDROACOUSTICS - Year 2015

  In this paper a novel method of the bearing estimation in a passive sonar system with a towed array is introduced. The classical approach of the bearing estimation based on the spatial spectrum is extended by using the synchrosqeezing method that is a part of the reassignment method introduced by Kodera et al. The usage of this method leads to the precise bearing estimation. The proposed method requires a relatively small amount...

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• Data Compression in Ultrasonic Network Communication via Sparse Signal Processing

  Publication

  • B. Zima
  • O. Reyes Márquez
  • M. Mohammadgholiha
  • J. Moll
  • L. Marchi De

  - Year 2022

  This document presents the approach of using compressed sensing in signal encoding and information transferring within a guided wave sensor network, comprised of specially designed frequency steerable acoustic transducers (FSATs). Wave propagation in a damaged plate was simulated using commercial FEM-based software COMSOL. Guided waves were excited by means of FSATs, characterized by the special shape of its electrodes, and modeled...

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• Michał Lech dr inż.

  People

  Michał Lech was born in Gdynia in 1983. In 2007 he graduated from the faculty of Electronics, Telecommunications and Informatics of Gdansk University of Technology. In June 2013, he received his Ph.D. degree. The subject of the dissertation was: “A Method and Algorithms for Controlling the Sound Mixing Processes by Hand Gestures Recognized Using Computer Vision”. The main focus of the thesis was the bias of audio perception caused...

• Artur Gańcza dr inż.

  People

  Department of Marine Electronic Systems

  I received the M.Sc. degree from the Gdańsk University of Technology (GUT), Gdańsk, Poland, in 2019. I am currently a Ph.D. student at GUT, with the Department of Automatic Control, Faculty of Electronics, Telecommunications and Informatics. My professional interests include speech recognition, system identification, adaptive signal processing and linear algebra.

• EURASIP Journal on Advances in Signal Processing

  Journals

  ISSN: 1687-6172 , eISSN: 1687-6180

• EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING

  Journals

  ISSN: 1110-8657

• APSIPA Transactions on Signal and Information Processing

  Journals

  ISSN: 2048-7703

• Sampling Theory in Signal and Image Processing

  Journals

  ISSN: 1530-6429

• Foundations in Signal Processing, Communications and Networking

  Journals

  ISSN: 1863-8538 , eISSN: 1863-8546

• IEEE Open Journal of Signal Processing

  Journals

  eISSN: 2644-1322

• Seafloor characterisation using multibeam sonar echo signal processing and image analysis

  Publication

  • Z. Łubniewski
  • A. Stepnowski
  • A. Chybicki

  - HYDROACOUSTICS - Year 2010

  The authors propose the approach to multibeam seafloor characterisation which relies on the combined, concurrent use of two different techniques of multibeam sonar data processing. The first one is based on constructing the grey-level sonar images of seabed using the echoes received in the consecutive beams. Then, the parameters describing the local region of sonar image, namely, the local standard deviation of a grey level, and...

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• Measurements of Two-phase Flows in Pipelines Using Radioisotopes and Statistical Signal Processing

  Publication

  • R. Hanus
  • M. Zych
  • A. Golijanek-Jędrzejczyk

  - Year 2022

  This paper presents an application of radiotracers and gamma absorption method in two-phase flow measurements in pipelines. Two different methods were implemented to analysis of acquired signals. Investigated methods are based on the cross-correlation function and the phase of the cross-spectral density distribution. The examples presented in the article illustrate the application of the radioisotopes to evaluation of liquid-gas...

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• Combined method of multibeam sonar signal processing and image analysis for seafloor classification

  Publication

  • A. Stepnowski
  • Z. Łubniewski

  - Year 2011

  The combined approach to seafloor characterisation was investigated. It relies on calculation of several descriptors (parameters) related to seabed type using three types of multibeam sonar data obtained during seafloor sensing: 1) the grey-level sonar images (echograms) of seabed, 2) the 3D model of the seabed surface which consists of bathymetric data, 3) the set of time domain bottom echo envelopes received in the consecutive...

• International Journal of Signal Processing, Image Processing and Pattern Recognition

  Journals

  ISSN: 2005-4254

• Digital processing of pulse signal from light-to-frequency converter under dynamic condition

  Publication

  • E. Pawlowski

  - Year 2014

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• Impact of digital signal processing on FOC current feedback in high-speed PMSM drive

  Publication

  • L. Jarzębowicz
  • M. Gutten

  - Year 2019

  In applications where size and weight of the electric motor are among major design concerns, Permanent Magnet Synchronous Motors (PMSMs) with wide operational speed-range are commonly preferred. Due to limited inverter switching frequency, high-speed operation of a drive results in a low ratio between the switching frequency and the fundamental frequency of motor voltage. Such operating conditions have been recently identified...

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• Signal Processing in the Investigation of Two-phase Liquid-gas Flow by Gamma-ray Absorption

  Publication

  • R. Hanus
  • M. Zych
  • M. Jaszczur
  • A. Szlachta
  • A. Golijanek-Jędrzejczyk

  - Year 2019

  n this paper, the use of the gamma-absorption method applied in the investigation of the two-phase liquid-gas flow in the pipeline is described. An example of its application to the air transported by water in a horizontal pipeline is evaluated. In the measurements, Am-241 radioactive sources and probes with Nal (Tl) scintillation crystals have been used. The signals from the radiometric set were used to determine the velocity...

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• International Journal of Image, Graphics and Signal Processing

  Journals

  ISSN: 2074-9074

• IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING

  Journals

  ISSN: 1350-245X

• IEEE Journal of Selected Topics in Signal Processing

  Journals

  ISSN: 1932-4553 , eISSN: 1941-0484

• Case Studies in Mechanical Systems and Signal Processing

  Journals

  eISSN: 2351-9886

• Journal of Information Hiding and Multimedia Signal Processing

  Journals

  ISSN: 2073-4212

• International Journal of Circuits, Systems and Signal Processing

  Journals

  ISSN: 1998-4464

• Sampling Theory, Signal Processing, and Data Analysis

  Journals

  ISSN: 2730-5716 , eISSN: 2730-5724

• MATCHED FILTER APPROACH FOR MICROSEISMIC SIGNAL PROCESSING OF REAL DATA FROM EAST POMERANIA SHALE GAS

  Publication

  • M. Kmieć
  • M. Antoszkiewicz
  • R. Jankowski
  • M. Szkodo

  - Year 2017

  The microseismic monitoring is a method of monitoring of fracture propagation during hydraulic fracturing (HF)process. An array of several hundred geophones is placed on the surface to record little ground tremors induced by fracturing process. Filtration and summation of signals from geophones is essential to identify and locate fracturing events from underground. Authors propose a method of matched filtering, that is usually...

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• EVALUATION OF LIQUID-GAS FLOW IN PIPELINE USING GAMMA-RAY ABSORPTION TECHNIQUE AND ADVANCED SIGNAL PROCESSING

  Publication

  • R. Hanus
  • M. Zych
  • V. Mosorov
  • A. Golijanek-Jędrzejczyk
  • M. Jaszczur
  • A. Andruszkiewicz

  - Metrology and Measurement Systems - Year 2021

  Liquid-gas flows in pipelines appear in many industrial processes, e.g. in the nuclear, mining, and oil industry. The gamma-absorption technique is one of the methods that can be successfully applied to study such flows. This paper presents the use of thegamma-absorption method to determine the water-air flow parameters in a horizontal pipeline. Three flow types were studied in this work: plug, transitional plug-bubble,...

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• Efficient FPGA Implementation of an RFIR Filter Using the APC–OMS Technique with WTM for High-Throughput Signal Processing

  Publication

  • K. Satish Reddy
  • S. Madhavan
  • P. Falkowski-Gilski
  • P. B. Divakarachari
  • A. Mathiyalagan

  - Electronics - Year 2022

  Nowadays, Finite Impulse Response (FIR) filters are used to change the attributes of a signal in the time or frequency domain. Among FIR filters, a reconfigurable filter has the advantage of changing the coefficient in real-time, while performing the operation. In this paper, the Anti-Symmetric Product Coding (APC) and Odd Multiple Storage (OMS) modules are utilized to implement the reconfigurable FIR filter (RFIR–APC–OMS). Herein,...

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• Machine-learning-based precise cost-efficient NO2 sensor calibration by means of time series matching and global data pre-processing

  Publication

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • M. Wójcikowski
  • B. Pankiewicz

  - Engineering Science and Technology-An International Journal-JESTECH - Year 2024

  Air pollution remains a considerable contemporary challenge affecting life quality, the environment, and economic well-being. It encompasses an array of pollutants—gases, particulate matter, biological molecules—emanating from sources such as vehicle emissions, industrial activities, agriculture, and natural occurrences. Nitrogen dioxide (NO2), a harmful gas, is particularly abundant in densely populated urban areas. Given its...

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• Statistical Data Pre-Processing and Time Series Incorporation for High-Efficacy Calibration of Low-Cost NO2 Sensor Using Machine Learning

  Publication

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • M. Wójcikowski
  • B. Pankiewicz

  - Scientific Reports - Year 2024

  Air pollution stands as a significant modern-day challenge impacting life quality, the environment, and the economy. It comprises various pollutants like gases, particulate matter, biological molecules, and more, stemming from sources such as vehicle emissions, industrial operations, agriculture, and natural events. Nitrogen dioxide (NO2), among these harmful gases, is notably prevalent in densely populated urban regions. Given...

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• IEEE Transactions on Signal and Information Processing over Networks

  Journals

  ISSN: 2373-776X

• Institute of Electrical and Electronics Engineers Signal Processing Magazine

  Journals

  ISSN: 1053-5888 , eISSN: 1558-0792

• Signal Receiving and Processing Platform of the Experimental Passive Radar for Intelligent Surveillance System Using Software Defined Radio Approach

  Publication

  • B. Szlachetko
  • A. Lewandowski

  - Year 2010

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• <title>Measurements of SIMCON 3.1 LLRF control signal processing quality for VUV free-electron laser FLASH</title>

  Publication

  • R. Pietrasik
  • W. Giergusiewicz
  • W. Jalmuzna
  • K. Pozniak
  • R. Romaniuk
  • S. Simrock
  • R. S. Romaniuk

  - Year 2006

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• System przetwarzania i wizualizacji sygnału mowy dla potrzeb lingwistycznych = System of speech signal processing and visualisation of the results

  Publication

  • Z. Wojan
  • W. Lis
  • K. Wojan

  - Year 2005

  W artykule przedstawiono sposób przetwarzania i wizualizacji sygnału mowy w formie prostego w obsłudze i relatywnie niedrogiego urządzenia do nagrywania sygnału akustycznego oraz przetwarzania cyfrowego wyselekcjonowanych fragmentów i wizualizacji uzyskanych rezultatów przekształceń. Zastosowano do tego celu komputer z kartą dźwiękową. Przetwarzanie cyfrowe oraz wizualizacja dokonywana była w oparciu o program MATLAB bezpośrednio...

• INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING

  Journals

  ISSN: 0890-6327 , eISSN: 1099-1115

• System przetwarzania i wizualizacji sygnału mowy dla potrzeb lingwistycznych [A system of speech signal processing and visualisation for linguistic purposes]

  Publication

  • K. Wojan

  - Year 2005

• ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING

  Journals

  ISSN: 0925-1030 , eISSN: 1573-1979

• Journal of Signal Processing Systems for Signal Image and Video Technology

  Journals

  ISSN: 1939-8018 , eISSN: 1939-8115

• Contactless Hearing Aid for Infants Employing Signal Processing Algorithms. [Bezkontaktowy aparat słuchowy dla niemowląt wykorzystujący algorytmy przetwarzania sygnału]

  Publication

  • M. Kulesza
  • P. Dalka
  • B. Kostek

  - Year 2006

  Zaprojektowany bezkontaktowy aparat słuchowy umiejscawiany jest w łóżeczku niemowlęcia. Aparat składający się z matrycy 4 mikrofonów oraz prototypowej karty z procesorem DSP pracuje w polu swobodnym. Przetworzony sygnał mowy emitowany jest z wykorzystaniem miniaturowych głośników. Opracowane algorytmy pozwalają na elminację akustycznych sprzężeń zwrotnych, które mogą wystepować ze względu na niewielką odległość mikrofonów od głośników...

• Jerzy Konorski dr hab. inż.

  People

  Department of Computer Communications

  Jerzy Konorski received his M. Sc. degree in telecommunications from Gdansk University of Technology, Poland, and his Ph. D. degree in computer science from the Polish Academy of Sciences, Warsaw, Poland. In 2007, he defended his D. Sc. thesis at the Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology. He has authored over 150 papers, led scientific projects funded by the European Union,...

• A modified method of vibration surveillance by using the optimal control at energy performance index

  Publication

  • K. J. Kaliński
  • M. Galewski

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Year 2015

  A method of vibration surveillance by using the optimal control at energy performance index has been creatively modified. The suggested original modification depends on consideration of direct relationship between the measured acceleration signal and the optimal control command. The paper presents the results of experiments and Hardware- in-the-loop simulations of a new active vibration reduction algorithm based on the energy...

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• IET Signal Processing

  Journals

  ISSN: 1751-9675 , eISSN: 1751-9683

• Instrumentation optical fibres for wave transformation, signal processing, sensors, and photonic functional components, manufactured at Białystok University of Technology in Dorosz Fibre Optics Laboratory

  Publication

  • R. Romaniuk
  • R. S. Romaniuk

  - Bulletin of the Polish Academy of Sciences Technical Sciences - Year 2014

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