A new systolic architecture for fast DCT computation

This paper presents a fast algorithm along with its systolic array implementation for computing the 1-D N-point discrete cosine transform (DCT), where N is a power of two. The architecture requires log₂ N multipliers and can evaluate one complete N-point DCT every N clock cycles. It possesses the features of regularity and modularity, and is thus well suited to VLSI implementation. As compared to existing systolic DCT architectures reaching the same throughput performance, the proposed one involves much less hardware complexity