Abstract
Abstract In this paper, we present a doubly pipelined VLSI CORDIC array processor for digital signal processing computations. The basic notion of doubly pipelined CORDIC computation will be introduced first. Then, some potential applications to digital signal processing problems will be discussed. Specifically, we shall demonstrate how this novel architecture can be applied to compute discrete Fourier transform and fast Fourier transform, to implement lattice filters, to solve Toeplitz systems, as well as matrix QR/LQ factorizations. It is shown that by adopting secondary pipelining, about one third of the hardware can be saved, and under certain cases, the throughput of the entire CORDIC processor array may be doubled.
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