Arbitrary waveform DDFS utilizing Chebyshev polynomials interpolation. - Ashkan Ashrafi; Reza R. Adhami; Laurie L. Joiner; Parisa Kaveh (IEEE Trans. Circuits Syst. I Regul. Pap., 2004)

Integral and Second Order Sliding Mode Control of Harmonic Oscillator. - Parisa Kaveh; Ashkan Ashrafi; Yuri B. Shtessel (CDC/ECC, 2005)

Comments on "A 13-bit resolution ROM-less direct digital frequency synthesizer based on a trigonometric quadruple angle formula". - Ashkan Ashrafi; Reza R. Adhami (IEEE Trans. Very Large Scale Integr. Syst., 2005)

The utilization of a Taylor series-based transformation in fingerprint verification. - Peter Meenen; Ashkan Ashrafi; Reza R. Adhami (Pattern Recognit. Lett., 2006)

A 1GHz Direct Digital Frequency Synthesizer Based on the Quasi-Linear Interpolation Method. - Ashkan Ashrafi; Aleksandar Milenkovic; Reza R. Adhami (ISCAS, 2007)

Theoretical Upperbound of the Spurious-Free Dynamic Range in Direct Digital Frequency Synthesizers Realized by Polynomial Interpolation Methods. - Ashkan Ashrafi; Reza R. Adhami (IEEE Trans. Circuits Syst. I Regul. Pap., 2007)

A Fingerprint Verification Algorithm Using the Smallest Minimum Sum of Closest Euclidean Distance. - Ujjal Kumar Bhowmik; Ashkan Ashrafi; Reza R. Adhami (CONIELECOMP, 2009)

Harmonic oscillator utilizing double-fold integral, traditional and second-order sliding mode control. - Yuri B. Shtessel; Parisa Kaveh; Ashkan Ashrafi (J. Frankl. Inst., 2009)

A Direct Digital Frequency Synthesizer Based on the Quasi-Linear Interpolation Method. - Ashkan Ashrafi; Reza R. Adhami; Aleksandar Milenkovic (IEEE Trans. Circuits Syst. I Regul. Pap., 2010)

On the SFDR Upperbound in DDFS Utilizing Polynomial Interpolation Methods. - Ashkan Ashrafi (IEEE Trans. Circuits Syst. II Express Briefs, 2012)

Hardware Implementation of Digital Signal Processing Algorithms. - Ashkan Ashrafi; Antonio G. M. Strollo; Oscar Gustafsson (J. Electr. Comput. Eng., 2013)

Optimized linear phase square-root Nyquist FIR filters for CDMA IS-95 and UMTS standards. - Ashkan Ashrafi (Signal Process., 2013)

A novel square-root Nyquist filter design with prescribed ISI energy. - Ashkan Ashrafi; Fredric J. Harris (Signal Process., 2013)

Classification of sonorant consonants utilizing empirical mode decomposition. - Ashkan Ashrafi; Stanley J. Wenndt (ACSSC, 2014)

Optimization of the Quantized Coefficients for DDFS Utilizing Polynomial Interpolation Methods. - Ashkan Ashrafi (IEEE Trans. Circuits Syst. II Express Briefs, 2014)

Real-valued single-tone frequency estimation using half-length autocorrelation. - Michael A. Martinez; Ashkan Ashrafi (Digit. Signal Process., 2018)

Inferring Cortical Connectivity From ECoG Signals Using Graph Signal Processing. - Siddhi Tavildar; Brian Mogen; Stavros Zanos; Stephanie C. Seeman; Steve I. Perlmutter; Eberhard E. Fetz; Ashkan Ashrafi (IEEE Access, 2019)