DOI: https://doi.org/10.24028/gzh.0203-3100.v40i6.2018.151049

Features of the use of an automated seismic acoustic complex by a combined method of detection objects

M. M. Nikiforov, I. V. Pampukha, V. M. Loza, S. V. Shcherbina, A. G. Shevtsov

Abstract


The article deals with the analysis of existing intelligence and signaling devices (ISD) using principles based on the use of modern seismic acoustic sensors to detect the coordinates of moving and immobile objects. The advantages and disadvantages of the seismic and acoustic detection principle, as separate and independent methods, as well as the advantages of using the combined detection method, are revealed. Complex combined use of acoustic, seismic or seismic acoustic sensors instead of just one typical element significantly extends the areas of use of complex groups of these devices, which accordingly reduces the influence of natural properties on processes for qualitative and accurate measurement results. The results of automatic processing of real seismic acoustic records from the «Little Girls» site were obtained using the method of mathematical processing of a seismic, acoustic, or seismic acoustic signal based on the well-known method for allocating primary wave inputs based on the use of the LTA/STA method (Long Time Amplitude/Short Time Amplitude method). According to the results of these studies, it has been shown that this automated approach to data flow processing using the LTA/STA method allows accurately determining the time of the arrival of waves of a seismic acoustic signal of different origins. The preliminary statistical estimation of the difference between the values of the calculated coordinates of the source of the seismic acoustic signal and its real coordinates has been carried out. This basic part of the research shows that there is a possible choice of optimal value of the rate of propagation of the seismic acoustic signal, the value of which can be used in conducting further research at landfills, quarries or mines. Preliminary conclusions from the conducted research, which show that the simultaneous use of general principles for seismic and acoustic signals to detect the origin of these signals greatly improves the efficiency of these methods and tools for detecting the coordinates of moving objects or man-caused phenomena, and also improves the accuracy of the determination of dynamics changes in the values of the coordinates of military objects and other dangerous processes that they generate.


Keywords


seismic acoustic sensor; intelligence-signaling device; acoustic; seismic; air object; dangerous object

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