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Moving vehicle tracking method for single-station earthquake rotation amount and translation amount concurrent measurement

A technology of rotation and translation, applied in the direction of measuring devices, surveying and navigation, instruments, etc., can solve the problem of not measuring the rotation component, etc., and achieve the effect of fast measurement and strong anti-interference ability

Pending Publication Date: 2021-10-15
XIAN UNIV OF TECH
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Problems solved by technology

Seismic waves include p-waves, s-waves, surface waves (including Rayleigh waves, love waves), etc. Conventional single-component or three-component seismic surveys do not measure the rotational component, but only measure the translational component

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  • Moving vehicle tracking method for single-station earthquake rotation amount and translation amount concurrent measurement
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  • Moving vehicle tracking method for single-station earthquake rotation amount and translation amount concurrent measurement

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and actual operations.

[0028] In the present invention, the measurement of the amount of translation is displacement or velocity or acceleration, wherein the displacement can be derived from time to obtain velocity, and the velocity can be derived from time to obtain acceleration. The measurement of rotation is angle or angular velocity. The so-called corresponding in the present invention Quantity measurement means that if the translation measurement unit is acceleration, the corresponding rotation measurement is angular velocity, and if the translation measurement unit is velocity, the corresponding rotation measurement is angle. Take the acceleration and angular velocity as examples below. The method of the present invention is common-point measurement, and a measuring instrument for measuring the amount of translation in the east-west and north-south direc...

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Abstract

The invention discloses a moving vehicle tracking method based on single-station earthquake rotation amount and translation amount concurrent measurement. The method comprises the following steps: S1, measuring rotation amount and corresponding translation; S2, identifying the measurement amount and conducting windowing and intercepting to obtain a Love wave; S3, segmenting sampling points of the Love wave; S4, solving the cross-correlation of each small wave band in different incoming wave directions; S5, solving an incoming wave direction enabling the cross-correlation to be maximum; and S6, solving a wave speed, and positioning a seismic source according to the incoming wave direction and the speed. The method provided by the invention can be used for single-station measurement, is different from previous multi-station measurement and is easy to implement, in addition, translation components are easy to be greatly influenced by terrains, and the method provided by the invention has rotation measurement and translation measurement, so that the influence of the terrains on the measurement is reduced.

Description

technical field [0001] The invention belongs to the technical field of geophysics, and in particular relates to a moving vehicle tracking method for co-point measurement of seismic rotation and translation of a single station. Background technique [0002] The movement of moving vehicles on the ground will generate vibrations, and the vibrations will generate seismic waves. The direction and speed of the seismic waves can be used to estimate the orientation of the source of the earthquake, and then its position can be estimated. Seismic waves include p-waves, s-waves, surface waves (including Rayleigh waves, love waves), etc. Conventional single-component or three-component seismic surveys do not measure the rotational component, but only the translational component. Therefore, the previous seismic measurement methods cannot estimate the exact orientation and position of the source by measuring and estimating the source at a single station. Only by combining the measurement ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34
CPCG01C21/343G01C21/3446
Inventor 满蔚仕李正斌
Owner XIAN UNIV OF TECH
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