МАТЕМАТИЧНА МОДЕЛЬ ПОШУКУ ТА ВИЯВЛЕННЯ ВИБУХОВИХ ПРИСТРОЇВ З НЕКОНТАКТНИМИ ДАТЧИКАМИ ЦІЛІ МЕТОДОМ НЕЛІНІЙНОЇ РАДІОЛОКАЦІЇ

Abstract

Radical changes in the nature and significant increase in the dynamics of mine warfare in modern military conflicts are the result of shifting priorities towards the use of the latest models of minesweepers and improvised explosive devices with mostly non-contact target sensors. This state of affairs has exacerbated the problem of countering explosive threats, and with it the need to ensure the required level of efficiency, safety and cost of search and detection of explosive devices with non-contact (electronic) target sensors. Existing technical means of search and detection of explosive objects, as a rule, in most cases are based on the use of active electromagnetic methods. The approach of such search devices to explosive devices with magnetic (non-contact) target sensors or those controlled by radio, often led to an unauthorized explosion and as a consequence to losses among the sappers.It is established that almost all non-contact sensors of the target are united by a common feature - the presence of semiconductor elements in their composition, or transitions such as metal-oxide-metal. These features are the basis of modern means of detecting explosive devices with non-contact target sensors by nonlinear radar. However, the requirements for the safety of using search engines of this type in the manual version or on land vehicles are still problematic. One way to resolve this contradiction is to install search engines on a remote-controlled platform. Moreover, there is an urgent need to substantiate the tactical and technical requirements for this type of equipment when changing the conditions and methods of their application.Based on the analysis of previous studies, both domestic and foreign experts, on the use of electromagnetic methods of search and detection of man-made objects in sheltered environments (soil, snow, water, etc.), proposed an improved mathematical model of search and detection of explosive devices with non-contact target sensors nonlinear radar. This model, in contrast to the existing ones, takes into account the probabilistic nature of the search process and the plane indicators of the guaranteed detection zone of devices with non-contact target sensors by nonlinear radar, functional indicators of electromagnetic wave propagation in free space and shelter. In the field of nonlinear radar, the concept of "zone of guaranteed detection of explosive devices with non-contact target sensors" was introduced for the first time, the essence of which is to ensure the implementation of the requirements for equivalent probability of detection at a level not lower than specified. In addition, the proposed mathematical model, among other technical characteristics, allows to set the performance parameters of the remote-controlled radar complex search and detection of explosive devices with non-contact target sensors by nonlinear radar. The proposed improvements of the mathematical model and the sequence of calculations will increase the accuracy of the results of modeling the search and detection of explosive devices with non-contact target sensors in sheltered environments when substantiating the requirements for demining of this type.