A unified design framework for vector rotational CORDIC family based on angle quantization process
Resource
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Journal
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Journal Volume
2
Pages
1233-1236
Date Issued
2001-05
Date
2001-05
Author(s)
Wu, Cheng-Shing
DOI
N/A
Abstract
Vector rotation is the key operation employed extensively in many digital signal processing applications. In this paper, we introduce a new design concept called Angle Quantization (AQ). It can be used as a design index for vector rotational operation, where the rotational angle is known in advance. Based on the AQ process, we establish a unified design framework for cost-effective low-latency rotational algorithms and architectures. Several existing works, such as conventional CORDIC, AR-CORDIC, MVR-CORDIC, and EEAS-based CORDIC, can be fitted into the design framework, forming a Vector Rotational CORDIC Family. Based on the new design framework, we can realize high-speed/low-complexity rotational VLSI circuits, whereas without degrading the precision performance in fixed-point implementations.
Other Subjects
Angle quantization; Coordinate rotational digital computer; Extended elmentary angle set; Vector rotation; Algorithms; Approximation theory; Computational complexity; Computer aided design; Computer architecture; Integrated circuit layout; Vectors; VLSI circuits; Digital signal processing
Type
journal article
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