METHOD OF RECEIVING OPTICAL SIGNALS USING AN AVALANCHE PHOTODIODE Russian patent published in 2024 - IPC G01S17/48 

FIELD: data processing.

SUBSTANCE: invention relates to techniques for extracting signals from noise and can be used in any field where determination of noise parameters is required. Method of receiving optical signals, which includes receiving signals using an avalanche photodiode in avalanche multiplication mode: the avalanche multiplication factor is set in turn M=1, M₁>1 and M₂>M₁, in each of these modes, the square of the root-mean-square noise value is determined σ²(M=1)=σ², σ²(M=M₁)=σ₁² and σ²(M=M₂)=σ₂², after which parameter α avalanche multiplication noise factor F=M^α is calculated by formula , wherein the avalanche multiplication coefficient M₁ is set in a given interval, and then the coefficient M₂ is set by comparing the ratio M₂/M₁ with a reference.

EFFECT: rapid determination of fluctuation noise parameters when designing miniature, including portable and built-in, equipment operating in a wide range of climatic conditions.

3 cl, 4 dwg