TOUCH SIGNAL DETECTION IN THE PRESENCE OF GAUSSIAN NOISE AND INTERFERENCE

Abstract

In this paper we determine an optimum receiver for Touch signal detection in the real conditions of ambient sensitivity to which the interference, in addition to the Gaussian noise, is superimposed. The passive compo-nent, which is the consequence of the ambient illumination effect and the interference, is presented by the sum of Dirac's pulse. In the second part of the paper we calculate the error probability and we define the threshold for decision about existence or non-existence of optical infrared beam between selective pair infrared transmitter of a receiver.