The Gabor transform basis of chromatic monitoring

Chromaticity based monitoring methodologies have evolved from polychromatic optical fibre based sensing systems, which was first implemented during th e 1980s. The evolution has led to a recognition that such a methodology is applicable to monitoring systems more widely. It is shown that the method m ap be regarded as the manifestation of a particular form of signal represen tation by Gabor transforms. Examples of generically different practical imp lementations of the chromatic methodology to a range of different monitorin g situations are given.