VLSI Implementation of Original, Control and Pipeline CORDIC Algorithm

Deepika Ghai

ISBN 10: 3659435996 / ISBN 13: 9783659435997

Published by LAP LAMBERT Academic Publishing Jul 2013, 2013

About this Item

Neuware -CORDIC is an acronym for COrdinate Rotation Digital Computer. The CORDIC method is the most versatile of all the algorithms that can be used to evaluate elementary functions. The same hardware can be used to compute trigonometric ratios (sin, cos, tan, etc.), hyperbolic ratios (sinh, cosh, tanh), multiplication, division, inverse trigonometric (arcsin, arccos) and inverse hyperbolic ratios (arcsinh, arccosh), with a slight modification it can also compute logarithms, exponentials, etc. In this work, it has been found that CORDIC algorithm requires 3 adders/subtractors and 3 registers. So it is multiplierless approach and it saves a lot of hardware and hence power dissipation is very low as compared to other methods. Due to the simplicity of the involved operations, the CORDIC algorithm is very well suited for VLSI implementation. In this work, CORDIC algorithm, pipeline CORDIC, control CORDIC and DFT (Discrete Fourier Transform) have been implemented in XILINX Spartan 3E FPGA kit using VHDL. The comparison of original CORDIC on the basis of their power, speed, area required to implement in chip designing, number of iteration etc. have been discussed.Books on Demand GmbH, Überseering 33, 22297 Hamburg 108 pp. Englisch. Seller Inventory # 9783659435997

Bibliographic Details

Title: VLSI Implementation of Original, Control and...

Publisher: LAP LAMBERT Academic Publishing Jul 2013

Publication Date: 2013

Binding: Taschenbuch

Condition: Neu

About this title

Synopsis:

CORDIC is an acronym for COrdinate Rotation Digital Computer. The CORDIC method is the most versatile of all the algorithms that can be used to evaluate elementary functions. The same hardware can be used to compute trigonometric ratios (sin, cos, tan, etc.), hyperbolic ratios (sinh, cosh, tanh), multiplication, division, inverse trigonometric (arcsin, arccos) and inverse hyperbolic ratios (arcsinh, arccosh), with a slight modification it can also compute logarithms, exponentials, etc. In this work, it has been found that CORDIC algorithm requires 3 adders/subtractors and 3 registers. So it is multiplierless approach and it saves a lot of hardware and hence power dissipation is very low as compared to other methods. Due to the simplicity of the involved operations, the CORDIC algorithm is very well suited for VLSI implementation. In this work, CORDIC algorithm, pipeline CORDIC, control CORDIC and DFT (Discrete Fourier Transform) have been implemented in XILINX Spartan 3E FPGA kit using VHDL. The comparison of original CORDIC on the basis of their power, speed, area required to implement in chip designing, number of iteration etc. have been discussed.

About the Author:

I am Deepika Ghai. I have completed M.tech(VLSI) from Thapar University, Patiala (India). Now I am pursuing Ph.d from PEC Unversity of Technology, Chandigarh (India). My Research areas is in Digital signal processing, Image processing, VLSI signal processing. I believe in the saying learn to give, not to take learn to serve, not to rule.