System for detecting modulated laser signals.

摘要

The system for detecting modulated laser signals includes a sensor for detecting a laser signal and a device for determining pulse intervals. The occurrences of a number of different pulse intervals are counted and stored. The stored counted occurrences are processed and a weighted sum of the number of different pulse intervals is determined. A signal is output when the weighted sum of the number of different pulse intervals counted for the different pulse intervals exceeds a preselected threshold number such that a modulated laser signal is detected. The counted occurrences are pref. stored in accordance with at least one preselected characteristic of the different pulse intervals. The processing device may compensate for jitter in the source of the modulated laser signals.