METHOD OF OBJECTS DETECTION, MOVING ALONG THE PROTECTED AREA, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC G01V1/16 G01V1/28 G08B13/16 

FIELD: radio engineering, communication.

SUBSTANCE: proposed the method of object detection, moving along the protected area, including the seismic signal generated by the object recording and processing, selecting the seismic signal of the predetermined duration in the sliding time window, calculating the energy of the seismic signal, and comparing of the obtained values of the number of impulses and the energy of the seismic signal with the threshold values. And if the threshold values exceed the seismic signal ACF are additionally calculated, specify the first local maximum, and the first local minimum values of ACF, calculate the percentage relation of k of the maximum and minimum values to the mentioned maximum value. According to the specified quantity of k relations define the arithmetical mean value of k_cp and according to the comparison results of the obtained k_cp value with the threshold value make a decision on the object moving along the protected area. At that in the processing operation the coefficient of subsequent seismic signal amplification is to be determined in accordance with the average value of the previous seismic signal energy in the sliding time window. Also proposed the device for implementing of the above mentioned method of detecting the object, moving along the protected area, consisting of the series-connected seismic signals converter, the prelimenary amplifier, the controlled amplifier, the input analog filter block, seismic signals digital processing block, comprising the series-connected analog-to-digital converter, the digital bandpass filter, the sliding time window forming block, seismic signal impulses selection block, number of impulses counting block of the seismic signal predetermined duration and energy in the sliding time window, and making decision block. Moreover, in the device, the digital seismic signal processing block further comprises the sequentially connected autocorrelation function calculator start-up block, the autocorrelation function calculator, and the autocorrelation function form analyzer. The referred startup block is connected to the output block, counting the number of impulses of the specified duration and energy of seismic signals, the mentioned startup block is connected to the adjustable amplifier via the control channel, and the autocorrelation functions form analyzer output is connected to the decision making block input.

EFFECT: increase of the objects detection probability of moving along the protected area, when changing the climatic conditions and changing the absorbing properties of the soil.

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