Method and system for measuring optical properties of a medium employing digital processing techniques communication.

摘要

A system (20) for chemical identification of a medium (30) comprising: a laser (26) for generating a CW carrier, a digital encoder (24) to form a code word, a modulator (28) electro-optical ( EO) for modulating the CW carrier with the encoded word to form a CW carrier encoded, means (30) to propagate the CW carrier encoded, and a receiver (32) configured to detect the CW carrier propagated, encoded for form a detected signal, the system characterized by: a processor (34) configured to measure the rate of bit error (BER) of the detected signal and identify based medium measured BER in which an increase in the BER of detected signal chemically identifies the medium.