a Cost function adaptation (Signal Processing, Volume 80 , Issue 11, Nov 2000, pp. 2457 - 2473)
 
  a convex variable step-size (IEEE Signal Processing Letters, Volume 7, Issue 9, Sep 2000, pp. 256 - 258
  a variable error-exponent (IEE Proceedings Vision, Image and Signal Processing, Volume: 147, Issue: 6, Dec 2000, pp. 516-526)
a The phase is the series of the odd derivatives of the neperian gain (Circuits, Systems, and Signal Processing, Volume 21, Number 3, May 2002, pp.243-261)
 
a Phase approximation by logarithmic sampling of gain (IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Volume: 50, Issue: 2, Feb 2003, pp. 93- 101)
 
a Circle fitting by weighted inversion (J. Electron. Imaging, Vol. 12, Jan2003, pp. 179-193)
 
a Zeros localisation using FFT (IEEE Signal Processing Letters, Volume 11, Issue 10, Oct. 2004, pp. 817 - 820)
 
a The causal part of autocorrelation is minimum-phase (Signal Processing, Volume 89, Issue 6, June 2009, pp. 1032-1037)
 
Last Updated: 11 August 2009.
Technical University of Cluj-Napoca mailto:corneliu.rusu@ieee.org Signal Processing Group