Optimal design of the noise transfer function of ?? ? ? modulators: IIR strategies, FIR strategies, FIR strategies with preassigned poles
Unified review of merit factors, constraints for optimizing noise shaping features. Profiling of different design strategies for the NTF of ?? ? ? modulators. Identification of critical cases for conventional design strategies. New hybrid strategy combining conventional pole placement and fully optimized zeros. New design method also used to evaluate conventional designs in non-critical cases.
noise shaping delta-sigma modulation optimal filter design semidefinite programming