METHOD OF MEASURING SOUND ON ROUTE Russian patent published in 2017 - IPC G01H5/00 

FIELD: measuring equipment.

SUBSTANCE: method of measuring the speed of sound along the path consists in emitting a probing signal by a stationary source through constant time intervals T, keeping the duration of the signal constant. Receive the signal of the antenna receiving device moving towards the path of the signal propagation. The speed V of the carrier is determined, as well as the arrival time of the first sounding signal t₁, the arrival time of the N-th sounding signal t_N and the speed of sound C. Reception of the signal is carried out by an antenna with a static fan of the directional characteristics with a width Δβ° of the spatial channel directivity characteristic, determine the number of the spatial channel N_i, in which a signal with a maximum amplitude is detected, measure the amplitude of the maximum signal A_j, determine the amplitudes of the signals in adjacent spatial channels, select an adjacent spatial channel N_j with the largest amplitude A_j, the speed of sound is determined by the formula S=(N-1)TVcosCA/{t₁-t_N+(N-1)T}, and the course angle of the CA of the source of the sounding signal is determined by the formula for j<i and , if j>i, where Δβ° is the width of the directional characteristic of the spatial channel.

EFFECT: improving the measurement accuracy.

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