Search results for: ALGORYTMY WYGŁADZAJĄCE

• New Algorithms for Adaptive Notch Smoothing

  Publication

  • M. Niedźwiecki
  • M. Meller

  - IEEE TRANSACTIONS ON SIGNAL PROCESSING - Year 2011

  The problem of extraction/elimination of a nonstationary complex sinusoidal signal buried in noise is considered. This problem is usually solved using adaptive notch filtering (ANF)algorithms. It is shown that accuracy of signal estimation can be increased if the results obtained from ANF are further processed using a cascade of appropriately designed filters. The resulting adaptive notch smoothing (ANS) algorithms can be employed...

  Full text to download in external service

• Statistically efficient smoothing algorithm for time-varying frequency estimation

  Publication

  • M. Niedźwiecki

  - IEEE TRANSACTIONS ON SIGNAL PROCESSING - Year 2008

  The problem of extraction/elimination of a nonstationary sinusoidal signal from noisy measurements is considered. This problem is usually solved using adaptive notch filtering (ANF) algorithms. It is shown that the accuracy of frequency estimates can be significantly increased if the results obtained from ANF are backward-time filtered by an appropriately designed lowpass filter. The resulting adaptive notch smoothing (ANS) algorithm...

  Full text to download in external service