3Curticapean F, Palamaki K L. Direct digital frequency synthesis with high memory compression ratio [J].Elec Lett, 2001,37(21): 1275-1276.
4Romero-Troncoso R de J. Algorithm for phase accumulator synthesis for applications in DDS [A] .Int Workshop Design of Mixed-Mode Integrated Circuits and Applications [C]. 1999. 210-213.