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Multi-path spectrum analysis method and system of slot wave signal

A spectrum analysis and channel wave technology, which is applied in the field of channel wave exploration, can solve the problems of inability to realize multi-directional detection and limited range, and achieve the effect of increasing the detection range, improving accuracy, and improving signal-to-noise ratio

Active Publication Date: 2019-11-26
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Generally, the information of the detection interface can be realized by emitting elastic wave signals, but the detection range of one emission is limited, and multi-directional detection cannot be realized

Method used

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  • Multi-path spectrum analysis method and system of slot wave signal
  • Multi-path spectrum analysis method and system of slot wave signal
  • Multi-path spectrum analysis method and system of slot wave signal

Examples

Experimental program
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Embodiment 1

[0036] In the field of wireless communications, multipath refers to the propagation of radio signals from the transmitting antenna to the receiving antenna through multiple paths. Each signal arriving at the receiving antenna from different paths is called a multipath signal. The groove wave signal is formed by mixing various multipath signals.

[0037] The groove wave signal detection device 5 includes a transmitter and a receiver. The transmitter is used to transmit a detection signal. After the transmitted detection signal is reflected by the geological interface in the formation, the receiver receives a mixed signal of multiple path signals, that is, the groove wave signal.

[0038] Among the technical solutions disclosed in one or more embodiments, such as figure 1 As shown, a multipath spectrum analysis method of groove wave signal includes the following steps:

[0039] Step 1. Transmit elastic wave detection signals to the ground under test at multiple different angles, and r...

Embodiment 2

[0065] This embodiment provides a groove wave signal multipath spectrum analysis system, which includes a groove wave signal detection device, a data acquisition module, a groove wave signal decomposition module, and a fusion module;

[0066] Trough wave signal detection device: used to transmit elastic wave detection signals to the ground under test at multiple different angles, and receive multiple groove wave signals after being reflected by the ground under test;

[0067] The data acquisition module is connected with the groove wave signal detection device, and is used to send the detected angle data and the echo signal received by the receiver of the groove wave signal detection device;

[0068] Slot wave signal decomposition module: used to decompose each slot wave signal to obtain the multipath signal of each interface returned by different paths;

[0069] Fusion module: It is used to fuse all the obtained multipath signals according to the multipath signal obtained by decomposi...

Embodiment 3

[0071] This embodiment provides an electronic device, including a memory, a processor, and computer instructions stored on the memory and running on the processor. When the computer instructions are executed by the processor, the steps described in the method in Embodiment 1 are completed.

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Abstract

The disclosure proposes a multi-path spectrum analysis method and system of a slot wave signal. Detection signals are transmitted at different angles to obtain a plurality of slot wave signals, thereby realizing multi-directional detection of the target geological interface, increasing the detection range, and reflecting geological information of a to-be-detected stratum. In terms of slot wave signal extraction, the slot wave signals are decomposed by means of non-orthogonal decomposition to decompose multiple paths in the slot wave signals and a plurality of echo signals are fused to obtain amulti-path spectrum of the slot wave signals. The decomposition mode has the high decomposition accuracy and high practicability; the decomposed signals can be preserve the characteristics of interface signals as many as possible and the obtained signals can be expressed simply, so that the signal-to-noise ratio of the signal is increased, the error rate of the signal is reduced, and the accuracyof the slot wave detection is improved.

Description

Technical field [0001] The present disclosure relates to the technical field related to groove wave exploration, and in particular to a method and system for multipath spectrum analysis of groove wave signals. Background technique [0002] The statements in this section merely provide background information related to the present disclosure, and do not necessarily constitute prior art. [0003] During the propagation of the elastic wave in the formation, due to the unique layering and unevenness of the earth channel, phenomena such as multipath and frequency deviation will be generated, forming a trough wave signal. Analyzing the multipath signal in the trough wave can conduct geological exploration and obtain the distribution of geological layers. In coal mine detection, it is possible to detect faults, collapsed columns, caverns and other geological anomalies in the coal seam in a large range, which plays an important role in the safety production of coal mines. The multipath s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12G01S13/88G01S7/41
CPCG01S7/41G01S13/885G01V3/12
Inventor 郭银景周玉洁孙红雨吕文红丁庆安高洁陈赓王正杰陆翔孔芳刘珍牛晨曦孟庆良刘辉杨文健
Owner SHANDONG UNIV OF SCI & TECH
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