Search results for: IMPULSE NOISE

• IMPULSE NOISE ASSOCIATED WITH FIRING HANDHELD MILITARY WEAPONS

  Publication

  • B. Świeczko-Żurek
  • J. Ejsmont
  • G. Ronowski

  - Year 2015

  Sports, hunting and military shooting grounds are well known sources of noise that can be disruptive both for people present at those facilities, as well as for people and animals that live nearby. What is more, shooters are also subjected to very painful and dangerous impulse noise. The paper discusses the issues related to the noise immission during firing of small firearms of military type that are typical for Poland. The experiments...

• Elimination of impulsive disturbances from archive audio files – comparison of three noise pulse detection schemes

  Publication

  • M. Niedźwiecki
  • M. Ciołek

  - Year 2014

  The problem of elimination of impulsive disturbances (such as clicks, pops, ticks, crackles, and record scratches) from archive audio recordings is considered and solved using autoregressive modeling. Three classical noise pulse detection schemes are examined and compared: the approach based on open-loop multi-step-ahead signal prediction, the approach based on decision-feedback signal prediction, and the double threshold approach,...

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• FLUCTUATION AND NOISE LETTERS

  Journals

  ISSN: 0219-4775 , eISSN: 1793-6780

• Active feedback noise control in the presence of impulsive disturbances

  Publication

  • M. Niedźwiecki
  • M. Meller

  - Year 2015

  The problem of active feedback control of a narrowband acoustic noise in the presence of impulsive disturbances is considered. It is shown that, when integrated with appropriately designed outlier detector, the proposed earlier feedback control algorithm called SONIC is capable of isolating and rejecting noise pulses. According to our tests this guarantees stable and reliable operation of the closed-loop noise cancelling...

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• IEEE 802.15.4a Impulse Radio Spectrum Shaping by Changes in Pulse Sequence

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2009

  This paper presents one of possible techniques of IEEE 802.15.4a ultra-wideband signal spectrum control, based on changes in sequences of transmitted pulses with very short duration time. This technique can reduce probability of mutual interferences between new ultra-wideband and existing narrowband devices, which may be helpful in further studies on allowing UWB transmission in wider range of spectrum in theEuropean Union.

• Two-stage method of impulsive noise detection for audio signals

  Publication

  • K. Cisowski

  - Poznan University of Technology Academic Journals. Electrical Engineering - Year 2007

  Przedstawiono nowa dwuetapową metodę detekcji zakłóceń impulsowych opartą na analizie funkcji gęstości rozkładu prawdopodobieństwa zakłóconego sygnału. Opisano algorytm określania poziomu wyzwalania detektora progowego.

• Noise & Health

  Journals

  ISSN: 1463-1741 , eISSN: 1998-4030

• Parametric impulsive noise detector for corrupted audio signals based on hidden Markow model

  Publication

  • K. Cisowski

  - Year 2008

  The paper addresses the problem of impulsive noise detection for audio signals. A structure of threshold parameter detectors using modelingof signals was introduced. the algorithm of the noise detection, based on discrete-time hidden Markow model (HMM)of whitened audio signal is elaborated

• NOISE CONTROL ENGINEERING JOURNAL

  Journals

  ISSN: 0736-2501

• Noise and Vibration Worldwide

  Journals

  ISSN: 0957-4565