Journal ArticleDOI
FPGA realization of a CORDIC based FFT processor for biomedical signal processing
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TLDR
The processor is implemented in a field programmable gate array (FPGA) that is a very cost effective option for low design cycle desktop testing, and its performance is found to be satisfactory.About:
This article is published in Microprocessors and Microsystems.The article was published on 2001-05-30. It has received 55 citations till now. The article focuses on the topics: Field-programmable gate array & CORDIC.read more
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Book
Reconfigurable Computing: Accelerating Computation with Field-Programmable Gate Arrays
Maya Gokhale,Paul Graham +1 more
TL;DR: A one-of-a-kind survey of the field of Reconfigurable Computing gives a comprehensive introduction to a discipline that offers a 10X-100X acceleration of algorithms over microprocessors.
Journal ArticleDOI
CORDIC architectures: a survey
B. Lakshmi,Anindya Sundar Dhar +1 more
TL;DR: This paper presents systematic and comprehensive taxonomy of rotational CORDIC algorithms, and detailed comparison of various algorithms is presented, which can provide a first-order information to designers looking for either further improvement of performance or selection of rotations for a specific application.
Journal ArticleDOI
Low Latency Hybrid CORDIC Algorithm
Rohit Shukla,Kailash Chandra Ray +1 more
TL;DR: The authors have proposed a new hybrid CORDIC algorithm which reduces the iteration to (3\mbin/8) + 1 for \mbin bit precision including the scale factor calculation and compensation.
Journal ArticleDOI
CORDIC-based unified VLSI architecture for implementing window functions for real time spectral analysis
TL;DR: This work has proposed a CORDIC (co-ordinate rotation digital computer)-based unified windowing architecture to remove the spectral leakage, picket fence effect and resolution problems with different tradeoff between mainlobe and sidelobe in the frequency domain.
Journal ArticleDOI
VLSI architecture for low latency radix-4 CORDIC
B. Lakshmi,Anindya Sundar Dhar +1 more
TL;DR: This paper proposes a pipelined architecture using signed digit arithmetic for the VLSI efficient implementation of rotational radix-4 CORDIC algorithm, eliminating z path completely and achieves latency improvement over the previously proposed radIX-4 architecture with a relatively small hardware overhead.
References
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Journal ArticleDOI
The CORDIC Trigonometric Computing Technique
TL;DR: The trigonometric algorithms used in this computer and the instrumentation of these algorithms are discussed in this paper.
Journal ArticleDOI
What is the fast Fourier transform
W.T. Cochran,J.W. Cooley,D.L. Favin,H. Helms,R. A. Kaenel,W.W. Lang,G. Maling,D.E. Nelson,C. Rader,Peter D. Welch +9 more
TL;DR: The discrete Fourier transform of a time series is defined, some of its properties are discussed, the associated fast method for computing this transform is derived, and some of the computational aspects of the method are presented.
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Highly concurrent computing structures for matrix arithmetic and signal processing
TL;DR: This article presents the reader with several highly concurrent, pipelined computing structures that are realizable in VLSI and that exhibit large throughputs, and introduces architectures that exploit parallelism and that are based on powerful primitive operations.
Journal ArticleDOI
A Cordic Arithmetic Processor Chip
TL;DR: A monolithic processor computes products, quotients, and several common transcendental functions, based on the well-known principles of "CORDIC," but recourse to a subtle novel corollary results in a scale factor of unity.
Journal ArticleDOI
Use of spectral analysis in the detection of frequency differences in the electrogastrograms of normal and diabetic subjects
TL;DR: The authors investigated the basal electrical rhythm of the stomach to determine if abnormalities of the BER occur in association with those gastric complaints in patients with long-term insulin-dependent diabetes, and developed a microcomputer-based running spectral analysis technique (overlapping fast Fourier transforms) to analyze the recordings.