Performances comparing between adaptive IIR lattice notch filter and adaptive IIR notch filter with constrained poles and zeros using plain gradient algorithm. - Rachu Punchalard; Wuthiporn Lertvasana; Prawit Chumchu (ISSPA (2), 2003)

Inverse Tangent Based Adaptive IIR Notch Filter. - R. Punchalard; Jeerasuda Koseeyaporn; Paramote Wardkein (APCCAS, 2006)

Analytic Solution of Amplitude Controlled Digital Oscillator Using Multi-Time Variables Technique. - R. Punchalard; Jeerasuda Koseeyaporn; Paramote Wardkein (APCCAS, 2006)

Mean square error analysis of the PG algorithm for adaptive IIR notch filter with constrained poles and zeros using power spectral density method. - Rachu Punchalard; Jeerasuda Koseeyaporn; Paramote Wardkein (APCCAS, 2008)

Adaptive IIR notch filters based on new error criteria. - R. Punchalard; A. Lorsawatsiri; Jeerasuda Koseeyaporn; Paramote Wardkein; A. Roeksabutr (Signal Process., 2008)

Direct frequency estimation based adaptive algorithm for a second-order adaptive FIR notch filter. - R. Punchalard; A. Lorsawatsiri; W. Loetwassana; Jeerasuda Koseeyaporn; Paramote Wardkein; A. Roeksabutr (Signal Process., 2008)

Adaptive IIR notch filter using a modified sign algorithm. - R. Punchalard; Jeerasuda Koseeyaporn; Paramote Wardkein (Signal Process., 2009)

Indirect frequency estimation based on second-order adaptive FIR notch filter. - R. Punchalard; Jeerasuda Koseeyaporn; Paramote Wardkein (Signal Process., 2009)

Unbiased plain gradient algorithm for a second-order adaptive IIR notch filter with constrained poles and zeros. - W. Loetwassana; R. Punchalard; Jeerasuda Koseeyaporn; Paramote Wardkein (Signal Process., 2010)

Novel algorithm for sinusoidal interference cancellation. - A. Nosan; R. Punchalard; Paramote Wardkein; Jeerasuda Koseeyaporn (ISPACS, 2011)

A complex adaptive notch filter using modified gradient algorithm. - A. Nosan; R. Punchalard (Signal Process., 2012)

Mean square error analysis of unbiased modified plain gradient algorithm for second-order adaptive IIR notch filter. - R. Punchalard (Signal Process., 2012)

A modified inverse tangent based adaptive algorithm for a second-order constrained adaptive IIR notch filter. - R. Punchalard (Signal Process., 2014)

Arctangent based adaptive algorithm for a complex IIR notch filter for frequency estimation and tracking. - R. Punchalard (Signal Process., 2014)

High Density Salt and Pepper Noise Filter based on Shepard Interpolation Method. - Chaipichit Cumpim; Rachu Punchalard (J. Comput. Sci., 2017)