FREQUENCY SEARCHER AND FREQUENCY-LOCKED DATA DEMODULATOR USING A PROGRAMMABLE ROTATOR

摘要

[0065] A searcher is centered on frequency bins to search for an incoming signal. The frequency locked loop generates an initial phase signal and a phase increment signal that are input to an accumulator. The accumulator accumulates the phase increments over a predetermined interval. After the interval, the accumulator generates a control signal that instructs a rotato r to perform a phase rotation function.