Verfahren zur Synchronisation eines lokalen Oszillators in einem optischen Homodynempfänger

摘要

The method involves mixing the optical communication signal with an output signal from the local oscillator (13), driving a power detector (16) using an output signal u(t) provided by an output (26) from the mixer (28). The power of the output signal form the mixer is evaluated by the power detector. The instantaneous frequency of the local oscillator is controlled so that the output signal from the power detector is a maximum. Independent claims are included for a homodyne receiver and an optical inter-satellite communication system.