Wyniki wyszukiwania dla: SIGNAL AND DATA PROCESSING

• MECHANICAL SYSTEMS AND SIGNAL PROCESSING

  Czasopisma

  ISSN: 0888-3270

• SIGNAL PROCESSING

  Czasopisma

  ISSN: 0165-1684 , eISSN: 1872-7557

• IEEE TRANSACTIONS ON SIGNAL PROCESSING

  Czasopisma

  ISSN: 1053-587X , eISSN: 1941-0476

• Data Compression in Ultrasonic Network Communication via Sparse Signal Processing

  Publikacja

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

  - Rok 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...

  Pełny tekst do pobrania w portalu

• Sampling Theory, Signal Processing, and Data Analysis

  Czasopisma

  ISSN: 2730-5716 , eISSN: 2730-5724

• DIGITAL SIGNAL PROCESSING

  Czasopisma

  ISSN: 1051-2004 , eISSN: 1095-4333

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

  Publikacja

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

  - Rok 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...

  Pełny tekst do pobrania w serwisie zewnętrznym

• CIRCUITS SYSTEMS AND SIGNAL PROCESSING

  Czasopisma

  ISSN: 0278-081X , eISSN: 1531-5878

• Biomedical Signal Processing and Control

  Czasopisma

  ISSN: 1746-8094 , eISSN: 1746-8108

• Digital structures for high-speed signal processing

  Publikacja

  • M. Czyżak

  - Rok 2013

  The work covers several issues of realization of digital structures for pipelined processing of real and complex signals with the use of binary arithmetic and residue arithmetic. Basic rules of performing operations in residue arithmetic are presented along with selected residue number systems for processing of complex signals and computation of convolution. Subsequently, methods of conversion of numbers from weighted systems to...

• Data Processing Systems

  Czasopisma

  ISSN: 1681-7710

• Using wearable device for biomedical signal acquisition and processing

  Publikacja

  • T. Kocejko
  • A. Giczewska
  • J. Wtorek
  • A. Poliński

  - Rok 2017

  In this paper we present the research conducted on synchronous measurements of biosignals. The experiment was conducted to evaluate the possibility of estimating vital signs based on eye tracking. Method: The eGlasses platform was used for acquisition of ECG, respiration rate, eye and pupil movement and blood pressure. Data were acquired in three 5 min. intervals during which a subject was performing certain tasks. The signals...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Digital Processing of Frequency–Pulse Signal in Measurement System

  Publikacja

  • D. Świsulski
  • E. Pawłowski
  • M. Dorozhovets

  - Rok 2018

  The work presents the issue of the use of multichannel measurement systems of sensors processing input value to impulse signal frequency. The frequency impulse signal obtained from such sensors is often required to be processed at the same time with a voltage signal which is obtained from other sensors used in the same measurement system. In such case, it is usually necessary to sample the output signals from all sensors in the...

  Pełny tekst do pobrania w portalu

• A study on signal processing methods applied to hearing aids

  Publikacja

  • B. Kostek
  • K. Kąkol

  - Rok 2016

  This paper presents a short survey on current technology available in hearing aids with a focus on digital signal processing techniques used. First, factors influencing the hearing aid effectiveness are introduced. Then, examples of the present DSP methods and strategies are provided. Also, a description of current limitations of hearing aids and future trends of development are shown. Finally, the notion of computational auditory...

• Efficient signal processing in spectroscopic optical coherence tomography

  Publikacja

  • M. Kraszewski
  • M. Trojanowski
  • M. Strąkowski

  - Rok 2015

  Spectroscopic optical coherence tomography (SOCT) is an extension of a standard OCT technique, which allows to obtain depth-resolved, spectroscopic information on the examined sample. It can be used as a source of additional contrast in OCT images e.g. by encoding certain features of the light spectrum into the hue of the image pixels. However, SOCT require computation of time-frequency distributions of each OCT A-scan, what is...

  Pełny tekst do pobrania w serwisie zewnętrznym

• System of speech signal processing and visualisation for linguistic purposes

  Publikacja

  • K. Wojan

  - Archives of Acoustics - Rok 2005

• Processing of Satellite Data in the Cloud

  Publikacja

  • J. Proficz
  • K. Drypczewski

  - TASK Quarterly - Rok 2017

  The dynamic development of digital technologies, especially those dedicated to devices generating large data streams, such as all kinds of measurement equipment (temperature and humidity sensors, cameras, radio-telescopes and satellites – Internet of Things) enables more in-depth analysis of the surrounding reality, including better understanding of various natural phenomenon, starting from atomic level reactions, through macroscopic...

  Pełny tekst do pobrania w portalu

• Accelerometer signal pre-processing influence on human activity recognition

  Publikacja

  • P. Maziewski
  • A. Kupryjanow
  • K. Kaszuba-Miotke
  • A. Czyżewski

  - Rok 2009

  A study of data pre-processing influence on accelerometer-based human activity recognition algorithms is presented. The frequency band used to filter-out the accelerometer signals and the number of accelerometers involved were considered in terms of their influence on the recognition accuracy.

• WSEAS Transactions on Signal Processing

  Czasopisma

  ISSN: 1790-5052

• Journal of Signal and Image Processing

  Czasopisma

  ISSN: 0976-8882

• Foundations and Trends in Signal Processing

  Czasopisma

  ISSN: 1932-8346 , eISSN: 1932-8354

• IEEE SIGNAL PROCESSING LETTERS

  Czasopisma

  ISSN: 1070-9908 , eISSN: 1558-2361

• MULTIDIMENSIONAL SYSTEMS AND SIGNAL PROCESSING

  Czasopisma

  ISSN: 0923-6082 , eISSN: 1573-0824

• Springer Topics in Signal Processing

  Czasopisma

  ISSN: 1866-2609 , eISSN: 1866-2617

• SIGNAL PROCESSING-IMAGE COMMUNICATION

  Czasopisma

  ISSN: 0923-5965 , eISSN: 1879-2677

• Digital signal processing applied to the modernization of Polish Navy sonars

  Publikacja

  • J. Marszal

  - Polish Maritime Research - Rok 2014

  The article presents the equipment and digital signal processing methods used for modernizing the Polish Navy’s sonars. With the rapid advancement of electronic technologies and digital signal processing methods, electronic systems, including sonars, become obsolete very quickly. In the late 1990s a team of researchers of the Department of Marine Electronics Systems, Faculty of Electronics, Telecommunications and Informatics, Gdansk...

  Pełny tekst do pobrania w portalu

• Digital Signal Processing for Hydroacoustic System in Biomimetic Underwater Vehicle

  Publikacja

  • P. Piskur
  • M. Gasiorowski

  - Nase More - Rok 2020

  Pełny tekst do pobrania w serwisie zewnętrznym

• Acoustic signal processing in passive sonar system with towed array

  Publikacja

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

  - HYDROACOUSTICS - Rok 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...

  Pełny tekst do pobrania w portalu

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

  Publikacja

  • M. Szczerska

  - ACTA PHYSICA POLONICA A - Rok 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...

  Pełny tekst do pobrania w portalu

• Optoelectronics Instrumentation and Data Processing

  Czasopisma

  ISSN: 8756-6990 , eISSN: 1934-7944

• Musical Instrument Tagging Using Data Augmentation and Effective Noisy Data Processing

  Publikacja

  • D. Koszewski
  • B. Kostek

  - JOURNAL OF THE AUDIO ENGINEERING SOCIETY - Rok 2020

  Developing signal processing methods to extract information automatically has potential in several applications, for example searching for multimedia based on its audio content, making context-aware mobile applications (e.g., tuning apps), or pre-processing for an automatic mixing system. However, the last-mentioned application needs a significant amount of research to reliably recognize real musical instruments in recordings....

  Pełny tekst do pobrania w portalu

• Probe signal processing for channel estimation in underwater acoustic communication system

  Publikacja

  • I. Kochańska
  • J. Schmidt

  - Rok 2017

  Underwater acoustic communication channels are characterized by a large variety of propagation conditions. Designing a reliable communication system requires knowledge of the transmission parameters of the channel, namely multipath delay spread, Doppler spread, coherence time, and coherence bandwidth. However, the possibilities of its estimation in a realtime underwater communication system are limited, mainly due to the computational...

  Pełny tekst do pobrania w serwisie zewnętrznym

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

  Publikacja

  • K. Czarnecki
  • D. Dąbrowski

  - HYDROACOUSTICS - Rok 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...

  Pełny tekst do pobrania w portalu

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

  Publikacja

  • M. Rucka
  • K. Wilde

  - Key Engineering Materials - Rok 2007

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

  Pełny tekst do pobrania w serwisie zewnętrznym

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

  Publikacja

  • M. Rucka
  • K. Wilde

  - Rok 2007

  Pełny tekst do pobrania w serwisie zewnętrznym

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

  Publikacja

  • A. Stepnowski
  • Z. Łubniewski

  - Rok 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...

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

  Publikacja

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

  - HYDROACOUSTICS - Rok 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...

  Pełny tekst do pobrania w portalu

• Influence of accelerometer signal pre-processing and classification method on human activity recognition

  Publikacja

  • A. Kupryjanow
  • K. Kaszuba-Miotke
  • A. Czyżewski

  - Elektronika : konstrukcje, technologie, zastosowania - Rok 2010

  A study of data pre-processing influence on accelerometer-based human activity recognition algorithms is presented. The frequency band used to filter-out the accelerometer signals and the number of accelerometers involved were considered in terms of their influence on the recognition accuracy. In the test four methods of classification were used: support vector machine, decision trees, neural network, k-nearest neighbor.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Massive surveillance data processing with supercomputing cluster

  Publikacja

  • A. Czyżewski
  • P. Bratoszewski
  • A. Ciarkowski
  • J. Cichowski
  • K. Lisowski
  • M. Szczodrak
  • G. Szwoch
  • H. Krawczyk

  - INFORMATION SCIENCES - Rok 2015

  In recent years, increasingly complex algorithms for automated analysis of surveillance data are being developed. The rapid growth in the number of monitoring installations and higher expectations of the quality parameters of the captured data result in an enormous computational cost of analyzing the massive volume of data. In this paper a new model of online processing of surveillance data streams is proposed, which assumes the...

  Pełny tekst do pobrania w portalu

• Multibeam sonar data processing for seafloor characterisation

  Publikacja

  • Z. Łubniewski

  - Rok 2011

  The 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 of seabed, 2) the 3D model of the seabed surface which consist of (x, y, z) points, 3) the set of time domain echo envelopes corresponding to several beams. The proposed method has...

• Multibeam Sonar Data Processing for Seafloor Classification

  Publikacja

  • Z. Łubniewski
  • A. Stepnowski
  • D. Sęk

  - Rok 2017

  Despite many years of the development of methodology for sensing the seafloor by means of underwater acoustics, the currently used techniques are still not mature enough and not ready to be utilised in numerous different (i.e. with respect to a water region character, used equipment type etc.) tasks. Therefore the hydroacoustic methods, both utilising vertical observations (e.g. by singlebeam echosounders), as well as those relying...

  Pełny tekst do pobrania w portalu

• Document transformations for data processing in information systems

  Publikacja

  • H. Krawczyk
  • Ł. Budnik

  - Rok 2007

  Atrykuł przedstawia podejście do automatyzacji transformacjidokumentów użytkownika bazujące na technologii XML. W artykuleprzedstawiony został system Endoscopy Recommender System.ERS wykorzystuje dedykowane transformacje XML Schema do Java, Java dodokumentów XML. Dzięki tym transformacjom procesy pobierania iprzechowywania danych zostały w pełni zautomatyzowane.Zaimplementowane podejście XML data binding umożliwia walidacjępodstawowych...

• Methods of data extraction from sub-bottom profiler's signal

  Publikacja

  • G. Grelowska
  • E. Kozaczka
  • W. Szymczak

  - HYDROACOUSTICS - Rok 2010

  Data obtain during sounding Gdansk Bay with SES-2000 Standard parametric sub-bottom profiler has two types of information: envelope and pure signal. First is used to plot echograms in real time and contain envelope of echo. The second one is stored during sounding and can be processed after recording data. Comparison of results will be shown and discussed. First step in investigation was proper configuration of small measurement...

  Pełny tekst do pobrania w portalu

• Data processing methods for dynamic medical thermography.

  Publikacja

  • M. Kaczmarek
  • J. Rumiński
  • A. Z. Nowakowski

  - IFMBE Proceedings - Rok 2002

  Artykuł przedstawia zastosowanie nowej metody syntezy obrazów w termografii dla potrzeb opisu ilościowego właściwości termicznych tkanek. Opis taki umożliwia różnicowanie przypadków medycznych. Metodę zastosowania dla licznych pomiarów fantomowych i in vitro w eksperymentach na zwierzętach (świnia domowa). Przedstawiono i omówiono rezultaty prac.

• EURASIP Journal on Advances in Signal Processing

  Czasopisma

  ISSN: 1687-6172 , eISSN: 1687-6180

• EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING

  Czasopisma

  ISSN: 1110-8657

• APSIPA Transactions on Signal and Information Processing

  Czasopisma

  ISSN: 2048-7703

• Sampling Theory in Signal and Image Processing

  Czasopisma

  ISSN: 1530-6429

• Foundations in Signal Processing, Communications and Networking

  Czasopisma

  ISSN: 1863-8538 , eISSN: 1863-8546

• IEEE Open Journal of Signal Processing

  Czasopisma

  eISSN: 2644-1322