Analog electronic circuit for processing a light signal, and corresponding processing system and method

摘要

This analog electronic circuit (2) for processing a light signal (4), of the type comprising:
a photodetector (6) adapted for producing an electric signal (8) from the light signal (4);a multiplier (12) adapted for multiplying the electric signal (8) with a reference signal (14) for obtaining a multiplied signal (16); andan integrator (18) adapted for integrating the multiplied signal (16) over at least one time interval, in order to obtain one integrated signal,

is characterized in that it further comprises:
an analog memory (24) adapted for storing the integrated signal in memory; anda computing unit adapted for estimating a time correlation of the light signal (4) from the integrated signal stored in memory.

主权项

1. An analog electronic circuit for processing a light signal, of the type comprising:
a photodetector adapted for producing an electric signal from a light signal; a multiplier adapted for multiplying the electric signal with a reference signal in order to obtain a multiplied signal; and an integrator adapted for integrating the multiplied signal over at least one time interval, in order to obtain at least one integrated signal, the electronic circuit being characterized in that it further comprises: an analog memory adapted for storing the integrated signal in memory; and a computing unit comprising a differential input multiplier and adapted for estimating a time correlation of the light signal from the integrated signal stored in memory.