DefinePK

Abstract

The article considers determination of efficiency of extended objects detection by short-range radio detection devices and, in particular, one of their versions - security radio devices. It has been shown that ability of the security devices and systems to detect objects is characterized by a field of instantaneous probability density and a field of accumulating probability of detection, which can serve as a measure of efficiency of these systems and devices. Concepts of instantaneous probabilities of object detection are entered; their interrelations are shown. Expressions for normal and truncated normal distribution of the operation range of the detection devices, as well as expressions for determining the accumulating probability of detection are obtained. Expressions for the determination of the accumulating probabilities when operation range distribution of detection devices submits to normal and truncated normal distribution are given. Use of function of instrumental contact establishing for a quantitative estimation of detection devices efficiency is proved. The article presents expressions for typical object detection cases using the function of instrumental contact establishing.