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Architectural design of a Radix-4 CORDIC-based Radix-4 IFFT algorithm and its FPGA implementation

Architectural design of a Radix-4 CORDIC-based Radix-4 IFFT algorithm and its FPGA implementation In high speed applications, it is wise to use Radix-4 algorithm, when the number of data points is the power of four, instead of using the conventional Radix-2 algorithm. In this paper a CORDIC based almost multiplier less architecture for a 16 point Radix-4 IFFT is presented. With the concurrent use of pipelining and parallelism, the advantages of minimisation of latency time and the increment of the throughput rate is achieved. The whole Radix-4 CORDIC-based Radix-4 IFFT architecture is implemented on an FPGA device with the accuracy up to 32-bit precision operating frequency at 55 MHz making it suitable for real-time applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Signal and Imaging Systems Engineering Inderscience Publishers

Architectural design of a Radix-4 CORDIC-based Radix-4 IFFT algorithm and its FPGA implementation

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Publisher
Inderscience Publishers
Copyright
Copyright © Inderscience Enterprises Ltd. All rights reserved
ISSN
1748-0698
eISSN
1748-0701
DOI
10.1504/IJSISE.2009.033761
Publisher site
See Article on Publisher Site

Abstract

In high speed applications, it is wise to use Radix-4 algorithm, when the number of data points is the power of four, instead of using the conventional Radix-2 algorithm. In this paper a CORDIC based almost multiplier less architecture for a 16 point Radix-4 IFFT is presented. With the concurrent use of pipelining and parallelism, the advantages of minimisation of latency time and the increment of the throughput rate is achieved. The whole Radix-4 CORDIC-based Radix-4 IFFT architecture is implemented on an FPGA device with the accuracy up to 32-bit precision operating frequency at 55 MHz making it suitable for real-time applications.

Journal

International Journal of Signal and Imaging Systems Engineering – Inderscience Publishers

Published: Jan 1, 2009

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