On-Line MSR-CORDIC VLSI Architecture with Applications to Cost-Efficient Rotation-Based Adaptive Filtering Systems

A novel on-line mixed-scaling-rotation CORDIC (MSR-CORDIC) VLSI architecture is proposed. This architecture not only maintains the scaling-free property of the original MSR-CORDIC, but also achieves the target of on-line angle computation. Compared with other existing CORDIC solutions, the proposed architecture is faster and more cost-efficient, especially for QRD-RLS filtering systems. Moreover, this on-line MSR-CORDIC can also be adopted by other rotation-based DSP applications