A method and device for source location based on multiple vibration sensors
A vibration sensor and seismic source positioning technology, which is applied in the direction of seismic signal processing, etc., can solve the problems of inaccurate arrival time of vibration waves, uneven propagation medium, and low stability and accuracy of the geometric source positioning method, so as to reduce errors , high precision and stability, and the effect of reducing the amount of calculation
Active Publication Date: 2021-06-01
FATRI XIAN TESTING & CONTROL TECH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In view of this, the embodiment of the present invention provides a seismic source location method and device based on a vibration sensor to solve the problems caused by the inaccurate arrival time of vibration waves and uneven propagation medium, which lead to the stability and accuracy of the current geometric source location method. low sex problem
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0023] An embodiment of the present invention provides a seismic source positioning method based on a vibration sensor, which can be applied to seismic source positioning in a ground area, such as figure 1 As shown, the source location method includes the following steps:
[0024] Step S101: Plan the positioning area according to actual needs, and establish ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a seismic source positioning method and device based on a vibration sensor. The method includes: establishing a coordinate system grid according to the positioning area; The propagation time between grid points, and establish the time-of-arrival model according to the propagation time; obtain the vibration signals of the vibration waves collected by multiple sensors in the positioning area; The vibration signal of the grid point is processed by the first sliding window to obtain the first vibration signal, and then the second sliding window and normalization processing are used to obtain the second vibration signal, and the vibration wave is calculated according to the second vibration signal of each sensor. The intensity function of each grid point at the time of occurrence, the intensity function is smoothed to obtain the first intensity function; the value of the first intensity function of each grid point is judged; the grid point corresponding to the first intensity function with the largest value is determined as source location.
Description
technical field [0001] The invention relates to the technical field of sensor positioning, in particular to a vibration sensor-based seismic source positioning method and device. Background technique [0002] At present, the most widely used seismic source location method based on vibration sensor is the main analytical geometry method, mainly TOA (time of arrival), TDOA (Time Difference Of Arrival) and so on. However, these positioning algorithms mainly rely on obtaining the arrival time of the vibration signal to solve the equations. The core accuracy of its positioning results is to rely on the arrival time and homogeneous medium, and the arrival time is often the first arrival time of the vibration signal. Since the first arrival wave has no characteristic rules, it is difficult to obtain an accurate arrival time with existing methods, and, Due to the error of the position of the first arrival wave, the error of the arrival time is caused. In a heterogeneous medium or i...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V1/30
Inventor 聂泳忠赵阳李红星
Owner FATRI XIAN TESTING & CONTROL TECH CO LTD