Method and system for identifying redundancy signals

A technology of signal identification and redundant objects, which is applied in the direction of processing detection response signals, etc., can solve the problems that detection and positioning cannot be carried out, and identification methods cannot be established, so as to solve the problem of signal source determination, enhance the ability of signal identification, and improve efficiency Effect

Active Publication Date: 2014-02-12
CASIC DEFENSE TECH RES & TEST CENT
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  • Abstract
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  • Claims
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Problems solved by technology

Without establishing an effective identification method, the detection and positioning of redundant objects will not be possible

Method used

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  • Method and system for identifying redundancy signals
  • Method and system for identifying redundancy signals
  • Method and system for identifying redundancy signals

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] The redundant object signal identification method provided by the present invention uses the multi-channel data acquisition system to extract the collected reverberation signal waveform and parameter characteristic value, and explores the basic type and waveform characteristic law of the redundant object displacement signal. The method provided by the present invention classifies various possible signals, studies its parameters and waveform characteristics respectively, extracts the characteristic parameters and waveform characteristic rules that characterize its type, establishes a block diagram of identification, positioning and detection through correlation analysis, and realizes the effective detection of signals...

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Abstract

The invention discloses a method and a system for identifying redundancy signals. The system for identifying the redundancy signals comprises a signal receiving device and a signal processing device. The signal receiving device is used for receiving signals generated in a cabin section under the state of rotation exciting. The signal processing device detects and identifies whether the signals are the redundancy signals according to wave-shaped characteristics. The system for identifying the redundancy signals judges received signals according to the method for identifying the redundancy signals and identifies the redundancy signals finally. The method for identifying the redundancy signals is a method used by the system for identifying the redundancy signals. The method can effectively improve precision of redundancy identification and detection efficiency, provides a sensitive and effective detecting means for detecting movable redundancy, and can detect various hard non-metal particles of tin dregs, metal particles, epoxy resin fragments and the like capable of shifting in the cabin section.

Description

technical field [0001] The invention relates to the field of non-destructive testing, in particular to a method and system for identifying redundant object signals. Background technique [0002] During the rotation excitation process, a variety of signals will be generated in the metal cabin at the same time, and some signal amplitudes may even drown out the signals generated by the redundant objects. At present, there is no relevant literature in China to explain the law of the redundant signal and the noise signal. In addition, the distribution of redundant object positioning points is closely related to the excitation method: when the redundant objects are excited by swinging, the positioning points are concentrated in the corresponding area; when the cabin moves along the axis, the positioning points are Approximate zonal distribution of an area. Without establishing an effective identification method, the detection and positioning of redundant objects will not be possi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/44
Inventor 赵长兴杨京孙永玲沈枫任毅
Owner CASIC DEFENSE TECH RES & TEST CENT
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