Implementation Of An SVD Processor Using Redundant CORDIC

Milos D. Ercegovac; Tomas Lang

doi:10.1117/12.948513

23 February 1988 Implementation Of An SVD Processor Using Redundant CORDIC

Milos D. Ercegovac, Tomas Lang

Proceedings Volume 0975, Advanced Algorithms and Architectures for Signal Processing III; (1988) https://doi.org/10.1117/12.948513
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

An implementation of the diagonal and off-diagonal processors for an array performing the singular value decomposition (SVD) is presented. The implementation uses a modification of the CORDIC module that utilizes carry-save addition instead of carry-propagate addition, resulting in a significant improvement in speed. Moreover, the calculation of the angles and of the two-sided rotation are overlapped. To achieve this overlapping, the calculation of the rotation angles includes an on-line module. Finally, the carry-save calculation and the overlapping result in a variable CORDIC scaling factor. This factor is computed and the correction performed by on-line division. Pipelining and rotation interleaving are used to reduce the implementation complexity. The speed is evaluated and compared with that obtained when conventional CORDIC modules are used.

Citation Download Citation

Milos D. Ercegovac and Tomas Lang "Implementation Of An SVD Processor Using Redundant CORDIC", Proc. SPIE 0975, Advanced Algorithms and Architectures for Signal Processing III, (23 February 1988); https://doi.org/10.1117/12.948513

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