High accuracy sin cos wave and frequency generators and related systems and methods

摘要

pHigh accuracy sin cos wave and frequency generators and related systems and methods. In non limiting embodiments disclosed herein the sin cos wave generators can provide highly accurate sin cos values for sin cos wave generation with low hardware costs and small lookup table requirements. The embodiments disclosed herein may include a circuit to conduct an arithmetic approximation of a sin cos curve based on a phase input. The circuit may be in communication with a point lookup table and a correction lookup table. The tables may receive the phase input and match the phase input to main sin cos endpoints associated with the phase and to a correction value for the phase. These values which are selected based on the phase input may be communicated to a converter circuit where the arithmetic functions are applied to the values resulting in a sin cos curve value./p