Fixed-Point Sine and Cosine

This chapter refines and compares three approaches for computing sines and cosines in hardware, with a focus of high-throughput pipelined architecture. The first approach is the classic CORDIC iteration, including a reduced iteration technique and fine optimizations in datapath width and latency. The second is an ad hoc architecture specifically designed around trigonometric identities. The third uses the generic table- and DSP-based polynomial approximation of Chap. 18 .