Title :
Complex division and square-root using CORDIC
Author :
Yang, Bohan ; Wang, Dong ; Liu, Leibo
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
In this paper, we present designs of CORDIC-based fixed-point complex division and square-root FPGA implementations. We optimized the arithmetic of CORDIC unit, complex division and square-root. Then a architecture of CORDIC units based recurrence architecture was proposed. The complex number division and square-root was implement and evaluated on a Altera Stratix II FPGAs, with max frequency up to 180Mhz, and can easily be ported to ASIC implementation. These architecture have good numerical properties and the result is accurate to less than one ulp.
Keywords :
application specific integrated circuits; digital arithmetic; field programmable gate arrays; signal processing; ASIC implementation; Altera Stratix II FPGA; CORDIC unit; CORDIC-based fixed-point complex division; square-root FPGA implementation; Accuracy; Adders; Algorithm design and analysis; Computer architecture; Field programmable gate arrays; Hardware; Registers; CORDIC; Complex; Division; FPGA; Square-root;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201840
