RTU Research Information System
Latviešu English

Publikācija: FPGA Implementation of Elementary Generalized Unitary Rotation with CORDIC Based Architecture

Publication Type Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language FPGA Implementation of Elementary Generalized Unitary Rotation with CORDIC Based Architecture
Field of research 2. Engineering and technology
Sub-field of research 2.2 Electrical engineering, Electronic engineering, Information and communication engineering
Authors Peteris Misāns
Uldis Derums
Uldis Kanders
Keywords CORDIC algorithm; FPGA; unitary Jacobi matrix; Unitary transforms
Abstract This paper describes the first trial of implementation of generalized unitary Jacobi-like rotation (the device is called EGU-rotator, further referred to as rotator) purely based on the CORDIC algorithm into Altera's and Xilinx FPGAs. The basics and examples for factorization of the generalized rotation matrix (further, matrix) are given. The number of matrix shapes alternates in the range from 4 to 64 depending on the range of used angles (parameters). A unified algorithm for implementation of parametrical rotator is provided. Reconfigurable architecture of rotator is briefly described. The choice of architecture is determined by 3 addresses and they correspond to different shapes of the matrix. The comparison of device resources for different wordlengths, the number of CORDIC iterations and platforms is given. The complex rotator works approximately 3 times slower and consumes approximately 5 times more device resources than a single CORDIC rotator. © 2012 IEEE.
DOI: 10.1109/NORCHP.2012.6403102
Hyperlink: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6403102 
Reference Misāns, P., Derums, U., Kanders, U. FPGA Implementation of Elementary Generalized Unitary Rotation with CORDIC Based Architecture. In: NORCHIP 2012: Conference Proceedings, Denmark, Copenhagen, 12-13 November, 2012. Piscataway: IEEE, 2012, pp.1-6. ISBN 978-1-4673-2221-8. e-ISBN 978-1-4673-2222-5. Available from: doi:10.1109/NORCHP.2012.6403102
Additional information Citation count:
ID 17955