Please use this identifier to cite or link to this item:
|Title:||Fixed-point analysis and parameter selections of MSR-CORDIC with applications to FFT designs||Authors:||Park, Sang Yoon
Yu, Ya Jun
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering||Issue Date:||2012||Source:||Park, S. Y., & Yu, Y. J. (2012). Fixed-point analysis and parameter selections of MSR-CORDIC with applications to FFT designs. IEEE transactions on signal processing, 60(12), 6245-6256.||Series/Report no.:||IEEE transactions on signal processing||Abstract:||Mixed-scaling-rotation (MSR) coordinate rotation digital computer (CORDIC) is an attractive approach to synthesizing complex rotators. This paper presents the fixed-point error analysis and parameter selections of MSR-CORDIC with applications to the fast Fourier transform (FFT). First, the fixed-point mean squared error of the MSR-CORDIC is analyzed by considering both the angle approximation error and signal round-off error incurred in the finite precision arithmetic. The signal to quantization noise ratio (SQNR) of the output of the FFT synthesized using MSR-CORDIC is thereafter estimated. Based on these analyses, two different parameter selection algorithms of MSR-CORDIC are proposed for general and dedicated MSR-CORDIC structures. The proposed algorithms minimize the number of adders and word-length when the SQNR of the FFT output is constrained. Design examples show that the FFT designed by the proposed method exhibits a lower hardware complexity than existing methods.||URI:||https://hdl.handle.net/10356/99826
|ISSN:||1053-587X||DOI:||http://dx.doi.org/10.1109/TSP.2012.2214218||Rights:||© 2012 IEEE||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.