CORDIC-based DDFS Architectures - Digital Design of Signal Processing Systems: A Practical Approach - page 511

x[M] cos( θ )

table -x

P

-/+ -/+ -/+

P

>>M+1 >>M+2 >>N-1

b [M+1]

>>M+1 >>M+2 >>N-1

sin( θ )

b 0 b 1 ... b M- 1 y[M]

P

N

+/- +/- +/-

table -y

M P

b[N-1]

b [M+2]

b [M+1] 1

1

1

N-M N-M-1

Figure 12.17 FDA of modified CORDIC algorithm