Digital phase shifter (DIGITAL PHASE SHIFTER)

摘要

An object of the present invention is to provide a digital anomaly apparatus which can change the phase of a digital data string by a step that is subdivided by a sampling period, while using a sampling signal or a clock signal whose phase is fixed.;A digital anomaly device according to the present invention includes a memory for sequentially storing time series data sampled at regular intervals in an address corresponding to a sampling time and data at a time ahead of the current sampling time by a desired time from the memory, A register for holding data read from a memory up to a predetermined number of readings from the latest reading and a plurality of data held in this register are weighted And interpolation data generating means for generating interpolated data at a desired division position of the sampling interval of the various data held in the register.