Line array multi-channel synchronous transient electromagnetic directional detection method and device thereof
A transient electromagnetic and multi-channel synchronization technology, which is applied in the direction of electromagnetic wave detection, radio wave directional device components, and radio wave direction finders, can solve the problem of poor contrast, affecting resolution and interpretation, and unrecognizable abnormalities Signal and other issues, to achieve the effect of strong signal comparability, improved reliability, and high signal-to-noise ratio
Inactive Publication Date: 2012-01-18
朱德兵
7 Cites 26 Cited by
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The invention discloses a line array multi-channel synchronous transient electromagnetic directional detection method and a device thereof. The method is characterized in that a transmitting line frame is arranged in the direction vertical to a detection direction and multiple channels of receiving line frames or magnetic bars are arranged forwards along the exploration direction, with the centerof the transmitting line frame as the starting point; a transient electromagnetic transmitter is started to transmit primary fields and multiple channels of synchronous acquisition systems synchronously acquire transient electromagnetic response secondary field signals according to the synchronous signals provided by the transient electromagnetic transmitter; the response signals of disturbing bodies around the transmitting line frame and behind coils and the mutual induction signals of a source coil and multiple channels of receiving coils are fast attenuated forwards and the abnormal response signals of front objects are gradually enhanced forwards; and directional explain for whether low-resistance abnormal bodies exist in front can be carried out according to the amplitudes and changecharacteristics of the signals which are regularly enhanced forwards. The method and the device are suitable for use in the fields such as advanced prediction in tunnels by the transient electromagnetic method and directional detection combining drill holes and the ground or airborne and ocean exploration by the transient electromagnetic method.
Application Domain
Radio wave finder detailsDetection using electromagnetic waves
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