Recent publications include:
“Optimization of the Quantized Coefficients for DDFS Utilizing Polynomial Interpolation Methods”, IEEE Trans. on Circuits and Systems Part-II, Express Briefs, Vol. 61, No. 2, pp. 105-108, Feb. 2014. (PDF)
“The Frequency Domain Walsh Functions and Sequences: An Introduction”, Appl. Comput. Harmon. Anal. Vol. 36, No.2, pp. 348-353, March 2014.
Ashkan Ashrafi and Fredric J. Harris, “A Novel Square-Root Nyquist Filter Design with Prescribe ISI Energy”, Signal Processing, Vol.93, No. 9, pp. 2626-2635, Sept. 2013
Ashkan Ashrafi, Antonio G.M. Strollo, and Oscar Gustafsson, “Hardware Implementation of Digital Signal Processing Algorithms”, Editorial, Journal of Electrical and Computer Engineering Vol. 2013, Article ID: 782575, June 2013.(PDF)
Praveen K. Chaurasiya, Ashkan Ashrafi and Santosh Nagaraj, “Novel Spectrally Efficient UWB Pulses Using Zinc and Walsh Basis Functions”, The ETRI Journal, Vol 35, No. 3, pp. 406-413, June 2013. (PDF)
Ashkan Ashrafi, “Optimized Linear Phase Square-Root Nyquist FIR Filters for CDMA IS-95 and UMTS Standards”, Signal Processing, Vol. 93, No. 4, pp. 866-873, April 2013. (PDF)
“On The SFDR Upperbound in DDFS Utilizing Polynomial Interpolation Methods”, IEEE Trans. on Circuits and Systems Part-II Express Briefs, Vol. 59, No. 5, pp. 307-311, May 2012. (PDF)