METHOD OF MEASURING RANGE Russian patent published in 2018 - IPC G01S15/08 

Abstract RU 2657016 C1

FIELD: radio engineering and communications.

SUBSTANCE: method for measuring range is related to the technical field of radio engineering means for measuring distances and can be used, for example, for measuring short distances in local navigation systems when controlling the movement of underwater objects. In the first channel, the inductive coupling of the two frame magnetic antennas is used. With this channel, in-phase continuous oscillations are formed at both ends of the measurement path. Moreover, the presence of electrical conductivity of water does not affect the operation of this channel. Acoustic waves are used in the other channel. Actually, the phase shift of acoustic waves is an information parameter for determining the distance. Consistent change in the frequency of continuous oscillations and the concomitant measurement of the phase difference of the signals in the electromagnetic and acoustic channels uniquely determine the range in the local short-range navigation system.

EFFECT: new about the method of measuring range is the use of simultaneously two channels of information transfer, both of which are suitable for signal transmission under water.

1 cl, 1 dwg

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RU 2 657 016 C1

Authors

Shirokov Igor Borisovich

Dates

2018-06-08Published

2017-07-06Filed