IMPROVED MODEL OF PROPAGATION OF ACOUSTIC SIGNALS IN A COMPLEX OBSTACLE ENVIRONMENT

The results of the analysis of the performance of tasks by psychological operations units in local wars, armed conflicts and during the repulsion of large-scale armed aggression of the Russian Federation against Ukraine showed that mobile speech stations are used to effectively exert psychological influence on the target audience in the areas of combat operations. At the same time, there is an urgent need to improve the existing fleet of mobile speech stations. For example, increasing the power of mobile speech stations will not solve the problem of expanding the zone of confident speech with the specified parameters of audibility and intelligibility of the transmitted signal, as this is related to the issues of survivability of the aforementioned weapons. Another way to improve the stations is to take into account the peculiarities of the propagation of acoustic waves, which will allow improving the tactics of using mobile speech stations with minimal design interventions. Existing models of acoustic signal propagation in a complex interference environment are mostly idealized and in real conditions of combat use of sound-speaking stations do not take into account certain conditions and factors that affect sound propagation. The article proposes an improved model of acoustic signal propagation in a complex interference environment, which differs from other models by taking into account the influence of powder gases. The study of the model allows for the establishment of tactical and technical requirements for new models of mobile sound-speaking stations or the modernization of standard models that are in service with simultaneous improvement of the tactics of their use. Keywords: mobile sound-speaking station, acoustic signal, psychological impact, target audience, environment.