FIELD: measurement technology.
SUBSTANCE: invention relates to optical measurements and method of determining temperature distribution along fibre-optic line. Method includes extraction of real signal caused by electronic photo current of measured superposition of real (electronic) and "p-type" signals. Raman scattering intensity is measured by means of photodiode, expressing transfer function of photodiode as convolution 
wherein gm is measured response in specified gap, g0 is unknown initial signal caused by electronic photo current, δ is delta function, W is transfer function of holes, and subsequent transformations are real signal caused by electronic photo current.
EFFECT: technical result consists in improvement of accuracy of measurements.
1 cl, 5 dwg
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