Coupling deconvolution method and device based on coupling measurement nodes

Abstract

The embodiment of the invention provides a coupling deconvolution method and device based on a coupling measurement node. The method comprises the following steps: acquiring a detector-ground coupling response parameter detected by a coupling measurement node; obtaining a plurality of frequency points according to a measurement experiment, and dividing the detector-ground coupling response parameter into a plurality of frequency bands according to the plurality of frequency points; respectively processing the plurality of frequency bands by adopting corresponding processing methods according to the frequency response characteristics of the coupling measuring nodes; and combining the respectively processed detector-ground coupling response parameters of the plurality of frequency bands into a new detector-ground coupling response parameter, and taking the new detector-ground coupling response parameter as a detector-ground coupling response parameter after coupling deconvolution. The detector embedding quality can be monitored in real time so as to improve the acquisition precision.

Description

Technical Field

[0001] This application relates to the field of detector technology, specifically to a coupled deconvolution method and apparatus based on a measurement-coupling node. Background Technology

[0002] In geophysical exploration, particularly in oil seismic exploration, accurately acquiring surface vibration signals using geophones is crucial for ensuring the quality of acquired data. When seismic waves reflected from underground interfaces propagate to the surface, they cause vibrations in the surface medium. Due to current technological limitations, it is impossible to directly measure the actual vibrations of the earth; therefore, geophones are typically placed inside the surface medium for indirect measurement. In this process, the geophone and the earth are not rigidly connected but rather form a flexible contact, together constituting a complex "geophone-earth coupled vibration system."

[0003] In existing technologies, many researchers have recognized that this coupled system can be simplified to a single-degree-of-freedom vibration model for mathematical description, and have conducted extensive research in both theoretical and experimental aspects. However, for a long time, two core issues in this technological field have remained unresolved: First, there is a lack of feasible solutions for conducting on-site measurements of the parameters of specific detector-earth coupling systems. Because the parameters of the coupling system (such as natural frequency, damping ratio, etc.) change dynamically with the surface medium conditions and burial status, theoretically abstract models cannot be directly applied to the ever-changing actual field conditions, making it difficult to quantify and accurately compensate for the coupling effect.

[0004] Second, a signal processing method that can effectively eliminate coupled vibration responses and restore the true vibrations of the earth has not been proposed. Existing technologies have not yet provided practical computational means to extract coupled responses from mixed signals, resulting in seismic records always being mixed with distortions and noise introduced by the coupled system.

[0005] Therefore, there is an urgent need in this field for a technical solution that can overcome the above-mentioned deficiencies, namely, a method for achieving large-scale and rapid measurement of specific coupled system parameters in the field, and an effective algorithm based on this. Summary of the Invention

[0006] The purpose of this invention is to provide a coupled deconvolution method and apparatus based on a coupling node, and to provide an effective algorithm that can eliminate coupling response and improve the fidelity of raw seismic data, so as to solve some of the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the first aspect of this application provides a coupled deconvolution method based on a coupling node, applied to a coupling node comprising: a barrel, and a detector unit, a power board, and a data function board arranged from bottom to top within the barrel; the detector unit being a moving-coil analog detector, and MEMS. The method includes: a digital detector, a piezoelectric detector, or an eddy current detector; a data function board for providing data processing, control, storage, communication, and positioning / timing functions; a power supply board including a battery pack and a voltage adapter circuit, the voltage adapter circuit being used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit; the method comprising: acquiring the detector-ground coupling response parameters detected by the measurement and coupling node; obtaining multiple frequency points based on measurement experiments, and dividing the detector-ground coupling response parameters into multiple frequency bands based on the multiple frequency points; processing the multiple frequency bands separately using corresponding processing methods according to the frequency response characteristics of the measurement and coupling node; combining the separately processed detector-ground coupling response parameters of the multiple frequency bands into a new detector-ground coupling response parameter, which is used as the detector-ground coupling response parameter after coupling deconvolution.

[0008] Optionally, multiple frequency points are obtained based on the measurement experiment, including: arranging multiple coupling nodes into an array, the distance of the array being determined according to the wavelength of the target reflected wave, the burial depth of the coupling nodes in each row being the same, and the burial depth of the coupling nodes in each row being different from that of the other rows; simulating an earthquake at the endpoints of the coupling node array, obtaining the amplitude spectrum and signal-to-noise ratio generated by the coupling nodes in the coupling node array based on the earthquake; and determining multiple frequency points based on the amplitude spectrum and signal-to-noise ratio.

[0009] Optionally, the multiple frequency bands are processed using corresponding processing methods according to the frequency response characteristics of the coupling node, including: using a low-frequency compensation method in the frequency band below 100Hz; using a damping fitting method in the frequency band from 100Hz to 200Hz; using a high-frequency filtering method in the frequency band from 200Hz to 300Hz; and using a frequency cutoff method in the frequency band above 300Hz.

[0010] Optionally, the data function board includes a layered data acquisition board, a main control and storage board, and a communication and GPS board; the data acquisition board is used to provide the data processing function; the main control and storage board is used to provide the control and storage function; and the communication and GPS board is used to provide the communication and positioning function.

[0011] Optionally, the voltage adaptation circuit includes: a linear voltage regulator, a multivibrator, a monostable oscillator, a dual D flip-flop, and a multiplexer; the positive and negative terminals of the battery pack are connected to the ground terminal and input terminal of the linear voltage regulator, respectively; the output terminal of the linear voltage regulator is connected to the trigger pin of the multivibrator; one of the Q output terminals of the multivibrator is connected to the input pin of the monostable oscillator; the output pin of the monostable oscillator is connected to the trigger pin of the dual D flip-flop; one of the Q output terminals of the dual D flip-flop is connected to the multiplexer to obtain the first output voltage of the voltage adaptation circuit.

[0012] Optionally, the voltage adapter circuit further includes: an optocoupler and an operational amplifier; the input terminal of the optocoupler is connected to the first output voltage; the two output terminals of the optocoupler are connected to the non-inverting input terminal and the inverting input terminal of the operational amplifier; the operational amplifier outputs the second output voltage of the voltage adapter circuit.

[0013] Optionally, the linear voltage regulator is model 78L5; the multivibrator is model CD4047B; the monostable oscillator is model DS3632N; the dual D flip-flop is model CD4013B; the multiplexer is integrated into MM74HC04; and the optocoupler is model 4N28.

[0014] Optionally, the detector unit, data function board, and power supply board are flexibly buffered and connected by rubber bushings.

[0015] Optionally, the bottom of the barrel is fixed with a metal component to secure the detector unit. The detector unit is placed in the central cavity of the battery pack and secured with a ring nut. A ceramic laminate vibrator is added below to generate vibration signals. The battery pack uses EVA foam for vibration isolation.

[0016] This application also provides a coupled deconvolution device based on a measurement-coupling node, which is used in conjunction with the measurement-coupling node. The measurement-coupling node includes: a barrel, and a detector unit, a power board, and a data function board arranged from bottom to top within the barrel; the detector unit is a moving-coil analog detector, a MEMS digital detector, a piezoelectric detector, or an eddy current detector; the data function board is used to provide data processing, control, storage, communication, and positioning and timing functions; the power board includes a battery pack and a voltage adapter circuit, the voltage adapter circuit being used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit; the device includes: The system includes a parameter acquisition module for acquiring the detector-ground coupling response parameters detected by the measurement and coupling node; a parameter determination module for dividing the detector-ground coupling response parameters into multiple frequency bands based on multiple frequency points obtained from the measurement experiment; a segmentation processing module for processing the multiple frequency bands using corresponding processing methods according to the frequency response characteristics of the measurement and coupling node; and a result output module for combining the processed detector-ground coupling response parameters of the multiple frequency bands into new detector-ground coupling response parameters, which are then used as the detector-ground coupling response parameters after coupling deconvolution.

[0017] This application also provides an electronic device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the coupled deconvolution method based on the aforementioned coupling node.

[0018] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the above-described coupled deconvolution method based on a coupled node.

[0019] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described coupled deconvolution method based on coupled nodes.

[0020] The beneficial effects of the above technical solution include: (1) The internal circuit of the node instrument generates a square wave. With the help of the built-in battery and miniaturized circuit of the node instrument, this technology can replace the traditional external circuit, promote field industrial applications, and monitor the quality of the detector burial in real time to improve the acquisition accuracy.

[0021] (2) The fidelity of the signal is improved by the coupled deconvolution method.

[0022] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 The schematic diagram illustrates a flowchart of a coupled deconvolution method based on a coupling node according to an embodiment of the present invention; Figure 2A partial structural diagram of the voltage adaptation circuit of the coupling node according to an embodiment of the present invention is shown schematically. Figure 3 This schematically illustrates another part of the structural diagram of the voltage adaptation circuit of the coupling node according to an embodiment of the present invention; Figure 4 The schematic diagram illustrates the structure of a coupled deconvolution device based on a measurement-coupling node according to an embodiment of the present invention. Figure 5 The diagram illustrates the internal structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustrating and explaining the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0025] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] Figure 1 A schematic diagram illustrating the flow of a coupled deconvolution method based on a coupling node according to an embodiment of the present invention is shown. Figure 1 As shown, the method includes: S01. Obtain the detector-ground coupling response parameters detected by the coupling node; S02. Based on the measurement experiment, multiple frequency points are obtained, and the detector-ground coupling response parameters are divided into multiple frequency bands based on the multiple frequency points. S03. Based on the frequency response characteristics of the coupling node, the multiple frequency bands are processed using corresponding processing methods respectively; S04. Combine the detector-ground coupling response parameters of the multiple frequency bands after processing to form a new detector-ground coupling response parameter, which is used as the detector-ground coupling response parameter after coupling deconvolution.

[0028] The above method is applied to the following measurement and coupling node, which includes: a barrel, and a detector unit, a power supply board, and a data function board arranged from bottom to top inside the barrel; the detector unit is a moving-coil analog detector, a MEMS digital detector, a piezoelectric detector, or an eddy current detector; the data function board is used to provide data processing, control, storage, communication, and positioning and timing functions; the power supply board includes a battery pack and a voltage adapter circuit, the voltage adapter circuit being used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit.

[0029] In some embodiments of this application, multiple frequency points are obtained based on measurement experiments, including: arranging multiple coupling nodes into an array, the distance of the array being determined according to the wavelength of the target reflected wave, the burial depth of the coupling nodes in each row being the same, and the burial depth of the coupling nodes in each row being different from that of other rows; simulating an earthquake at the endpoints of the coupling node array, obtaining the amplitude spectrum and signal-to-noise ratio generated by the coupling nodes in the coupling node array based on the earthquake; and determining multiple frequency points based on the amplitude spectrum and signal-to-noise ratio. This embodiment uses coupling tests of coupling nodes to verify the feasibility and effectiveness of the quantitative analysis method. The modified device is placed on top of the detector; the detector is then buried in the following situations: inserted into 1 / 3 of the tail cone, inserted into 2 / 3 of the tail cone, inserted into the entire tail cone, and the entire outer shell of the detector is buried; a square wave signal is input to the piezoelectric ceramic, and the coupling response between the detector and the ground is received; mode parameter identification is performed on the received data, and the equivalent natural frequency and equivalent damping ratio corresponding to different burial situations of the detector are calculated. By comparing the calculated equivalent natural frequency and equivalent damping ratio with the burial depth of the detector through coupling test results of detectors at different burial depths on loose muddy surfaces, a clear conclusion can be drawn: as the burial depth of the detector increases, the equivalent natural frequency and equivalent damping ratio continuously increase.

[0030] Optionally, the multiple frequency bands are processed using corresponding processing methods based on the frequency response characteristics of the coupling node, including: low-frequency compensation for frequencies below 100Hz; damping fitting for frequencies between 100Hz and 200Hz; high-frequency filtering for frequencies between 200Hz and 300Hz; and frequency truncation for frequencies above 300Hz. Specifically, based on the characteristics of the seismic signal input, the detector response (specifically, moving-coil detectors with low-frequency filtering effects) is active in the low-frequency band, and low-frequency compensation can be performed through "detector deconvolution." However, because ground motion signals contain both low-frequency reflected signals and low-frequency noise, such as secondary noise, surface waves, and environmental interference, after performing "low-frequency compensation" using detector deconvolution, targeted denoising is needed based on the characteristics of the recovered signal to improve the signal-to-noise ratio at the low-frequency end, since explosion signals are richer in low frequencies. For high-frequency coupling responses, what is eliminated by "coupled deconvolution" is an "extra" signal, a kind of "pure noise," which mainly operates in the high-frequency range, especially 100-200Hz. Below 100Hz, most coupling responses show little distortion; above 200Hz, source excitation becomes difficult, especially in generating high-frequency signals exceeding the ambient frequency. Above 300Hz and up to the high cutoff frequency, the reflected signal input to the seismic detector system is relatively weak, and due to high-frequency absorption, the high frequencies in the ambient noise are also relatively weak. The main distortion is caused by electrical noise, making the signal unreliable.

[0031] In some embodiments of this application, the data function board includes a layered data acquisition board, a main control and storage board, and a communication and GPS board. The data acquisition board provides the data processing function; the main control and storage board provides the control and storage function; and the communication and GPS board provides the communication and positioning function. This embodiment provides a layered design of the circuit function board, decomposing a complex system into functionally defined independent modules through the design principle of "high cohesion and low coupling." This design method brings comprehensive and significant advantages in terms of reliability, maintainability, development efficiency, cost control, and technological iteration, and is a key cornerstone for the rapid and reliable development and manufacturing of modern complex electronic devices. In industrial-grade equipment such as field data acquisition nodes, a single board can be replaced to address a specific functional failure. This avoids the need to replace the entire data function board, and these advantages are particularly important for ensuring the long-term stable operation of the equipment in harsh environments.

[0032] Figure 2 A partial structural diagram of the voltage adaptation circuit of the coupling node according to an embodiment of the present invention is shown schematically. Figure 3 This schematically illustrates another portion of the structural diagram of the voltage adaptation circuit for the coupling node according to an embodiment of the present invention. For example... Figure 2 and Figure 3 As shown, the voltage adapter circuit includes: a linear voltage regulator, a multivibrator, a monostable oscillator, a dual D flip-flop, and a multiplexer; the positive and negative terminals of the battery pack are connected to the ground terminal and input terminal of the linear voltage regulator, respectively; the output terminal of the linear voltage regulator is connected to the trigger pin of the multivibrator; one of the Q output terminals of the multivibrator is connected to the input pin of the monostable oscillator; the output pin of the monostable oscillator is connected to the trigger pin of the dual D flip-flop; one of the Q output terminals of the dual D flip-flop is connected to the multiplexer to obtain the first output voltage of the voltage adapter circuit, i.e., position J2 in the diagram.

[0033] In some embodiments of this application, the voltage adapter circuit further includes: an optocoupler and an operational amplifier; the input terminal of the optocoupler is connected to the first output voltage; the two output terminals of the optocoupler are connected to the non-inverting input terminal and the inverting input terminal of the operational amplifier; the operational amplifier outputs the second output voltage of the voltage adapter circuit, i.e., position J3 in the figure. This voltage adapter circuit provides a variety of different output voltages to adapt to the power requirements of different components.

[0034] To facilitate implementation and equipment selection by those skilled in the art, the linear voltage regulator is model 78L5; the multivibrator is model CD4047B; the monostable oscillator is model DS3632N; the dual D flip-flop is model CD4013B; the multiplexer is integrated into MM74HC04; and the optocoupler is model 4N28. The specific connection methods for the above electronic modules are as follows: Figure 2 and Figure 3 As shown.

[0035] In a typical power supply, the power board boosts the +3.3V supply voltage to above 20V to power the square wave generator. The square wave generator outputs a square wave according to the design signal, such as a frequency of 1-2Hz, an amplitude of not less than ±20V, and a rise and fall time of less than 0.1m, so that the output square wave meets the application requirements of ceramic lamination and node meters.

[0036] In some embodiments of this application, the detector unit, data function board, and power board are flexibly buffered and connected via rubber bushings. This "flexible buffered connection via rubber bushings" in this embodiment is an engineering design aimed at improving the physical reliability of the equipment and the quality of data acquisition. By introducing an elastic "buffer layer," it transforms the core components of the entire device from a rigid structure susceptible to shock and vibration into a flexible, adaptive, and robust system capable of resisting external mechanical interference. This is crucial for ensuring the long lifespan and reliability of high-precision data acquisition equipment in harsh outdoor environments.

[0037] In some embodiments of this application, the bottom of the barrel is fixed with a metal component to secure the detector unit's mounting compartment. The detector unit is placed in the central cavity of the battery pack and secured with a ring nut. A ceramic laminated vibrator is added below to generate vibration signals, and the battery pack is isolated using EVA foam. This specific embodiment illustrates the placement of components such as the ceramic laminated vibrator and the detector unit. The battery pack is arranged in a ring to form a central cavity, and the detector unit is placed inside the central cavity and secured with a ring nut, thereby improving the integration of the measurement and coupling node. Simultaneously, to avoid resonance and interference from the battery pack, EVA foam is used for vibration isolation.

[0038] This application also provides a coupled deconvolution device based on a measurement-coupling node, which is used in conjunction with the measurement-coupling node. The measurement-coupling node includes: a barrel, and a detector unit, a power supply board, and a data function board arranged from bottom to top within the barrel; the detector unit is a moving-coil analog detector, a MEMS digital detector, a piezoelectric detector, or an eddy current detector; the data function board is used to provide data processing, control, storage, communication, and positioning and timing functions; the power supply board includes a battery pack and a voltage adapter circuit, the voltage adapter circuit being used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit. Figure 4 A schematic diagram of a coupled deconvolution device based on a measurement-coupling node according to an embodiment of the present invention is shown. Figure 4 As shown, the device includes: a parameter acquisition module for acquiring the detector-ground coupling response parameters detected by the measurement and coupling node; a parameter determination module for dividing the detector-ground coupling response parameters into multiple frequency bands based on multiple frequency points obtained from the measurement experiment; a segmentation processing module for processing the multiple frequency bands separately using corresponding processing methods according to the frequency response characteristics of the measurement and coupling node; and a result output module for combining the processed detector-ground coupling response parameters of the multiple frequency bands into new detector-ground coupling response parameters, which are then used as the detector-ground coupling response parameters after coupling deconvolution.

[0039] The specific limitations of each functional module in the aforementioned coupled deconvolution device based on the coupling node can be found in the limitations of the coupled deconvolution method based on the coupling node described above, and will not be repeated here. Each module in the aforementioned device or system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module. This device, applied in the field of seismic response detection, also has the advantages of high integration and high signal fidelity.

[0040] This invention also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the above-described coupled deconvolution method based on a coupled node.

[0041] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described coupled deconvolution method based on a coupled node.

[0042] In one embodiment, the present invention also provides a computer device, which may be a terminal, and its internal structure diagram may be as follows. Figure 5 The computer device includes a processor A01, a network interface A02, a display screen A04, an input device A05, and a memory (not shown) connected via a system bus. The processor A01 provides computing and control capabilities. The memory includes internal memory A03 and a non-volatile storage medium A06. The non-volatile storage medium A06 stores an operating system B01 and a computer program B02. The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 stored in the non-volatile storage medium A06. The network interface A02 is used for communication with external terminals via a network connection. When the computer program is executed by the processor A01, it implements a coupled deconvolution method based on a coupled node. The display screen A04 can be a liquid crystal display (LCD) or an e-ink display. The input device A05 can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse.

[0043] Those skilled in the art will understand that Figure 5 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0044] This invention also provides a coupled deconvolution system based on a test-coupled node, which may include the aforementioned device, computer equipment, or electronic equipment.

[0045] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0046] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0047] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0048] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0049] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0050] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0051] Computer-readable media include both permanent and non-permanent, removable and non-removable media, which can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0052] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0053] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method of coupled deconvolution based on measured coupling nodes, characterized in that, The application is applied to a measuring and coupling node, which comprises a barrel, a detection unit, a power board and a data function board arranged from bottom to top in the barrel, the detection unit is a dynamic coil type analog detector, a MEMS digital detector, a piezoelectric detector or an eddy current detector, the data function board is used for providing data processing, control, storage, communication and positioning and timing functions, the power board comprises a battery pack and a voltage adaptation circuit, the voltage adaptation circuit is used for raising the voltage of the battery pack to the working voltage of the data function board and the detection unit, and the method comprises the following steps: obtaining a detector-ground coupling response parameter detected by the measuring and coupling node; determining a plurality of frequency points according to a measurement experiment, and dividing the detector-ground coupling response parameter into a plurality of frequency bands according to the plurality of frequency points; respectively processing the plurality of frequency bands according to the frequency response characteristics of the measuring and coupling node by using corresponding processing methods; combining the detector-ground coupling response parameters of the plurality of frequency bands processed respectively to form new detector-ground coupling response parameters as the detector-ground coupling response parameters after coupling deconvolution.

2. The measured decoupling node based deconvolution method of claim 1, wherein, determining a plurality of frequency points according to a measurement experiment, comprising: arranging a plurality of measuring and coupling nodes into an array, the distance of the array is determined according to the wavelength of the target reflected wave, the buried depth of the measuring and coupling nodes in each row is the same, and the buried depth of each row of measuring and coupling nodes is different from that of other rows; simulating an earthquake at the end point of the measuring and coupling node array, and obtaining the amplitude spectrum and signal-to-noise ratio of the measuring and coupling nodes in the measuring and coupling node array based on the earthquake; determining a plurality of frequency points according to the amplitude spectrum and signal-to-noise ratio.

3. The measured decoupling node based deconvolution method of claim 1, wherein, respectively processing the plurality of frequency bands according to the frequency response characteristics of the measuring and coupling node by using corresponding processing methods, comprising: in the frequency band below 100 Hz, a low-frequency compensation method is used for processing; in the frequency band of 100 Hz to 200 Hz, a damping fitting method is used for processing; in the frequency band of 200 Hz to 300 Hz, a high-frequency filtering method is used for processing; in the frequency band above 300 Hz, a frequency truncation method is used for processing.

4. The measured decoupling node based deconvolution method of claim 1, wherein, the data function board comprises a data acquisition board, a main control and storage board, a communication and GPS board arranged in layers; the data acquisition board is used for providing the data processing function; the main control and storage board is used for providing the control, storage, communication and positioning and timing functions.

5. The measured decoupling node based deconvolution method of claim 1, wherein, the voltage adaptation circuit comprises a linear voltage stabilizer, a multi-vibrator, a monostable multivibrator, a double D flip-flop and a multi-reverser; the positive and negative electrodes of the battery pack are respectively connected to the ground terminal and the input terminal of the linear voltage stabilizer; the output terminal of the linear voltage stabilizer is connected to the trigger pin of the multi-vibrator; one of the Q output terminals of the multi-vibrator is connected to the input pin of the monostable multivibrator; the output pin of the monostable multivibrator is connected to the trigger pin of the double D flip-flop; one of the Q output terminals of the double D flip-flop obtains the first output voltage of the voltage adaptation circuit through the multi-reverser.

6. The measured decoupling node based deconvolution method of claim 5, wherein, the voltage adaptation circuit further comprises a photoelectric coupler and an operational amplifier; the input terminal of the photoelectric coupler is connected to the first output voltage; The photoelectric coupler is connected to the same direction input end and the reverse input end of the operational amplifier; The operational amplifier outputs the second output voltage of the voltage adaptation circuit.

7. The measured decoupling node based deconvolution method of claim 6, wherein, The linear voltage stabilizer is model 78L5, the multivibrator is model CD4047B, the monostable multivibrator is model DS3632N, the dual D flip-flop is model CD4013B, the multiplexer is integrated in MM74HC04, and the photoelectric coupler is model 4N28.

8. The measured decoupling node based deconvolution method of claim 1, wherein, The detection unit, the data function board and the power supply board are flexibly connected through rubber bushings.

9. The measured decoupling node based deconvolution method of claim 8, wherein, The bottom of the barrel body is fixed with a detection unit fixed cabin through a metal piece, the detection unit is arranged in the central cavity of the battery pack and is fastened by a ring nut, a ceramic magnetic laminated vibrator is additionally arranged below to generate a vibration signal, and the battery pack adopts EVA foam vibration isolation.

10. A device for coupled deconvolution based on measured coupling nodes, characterized in that The device is used in cooperation with a measurement coupling node, and the measurement coupling node comprises a barrel body, a detection unit, a power supply board and a data function board arranged in the barrel body from bottom to top, the detection unit is a moving coil type analog detector, a MEMS digital detector, a piezoelectric detector or an eddy current detector, the data function board is used to provide data processing, control, storage, communication and positioning and timing functions, the power supply board comprises a battery pack and a voltage adaptation circuit, the voltage adaptation circuit is used to raise the voltage of the battery pack to the working voltage of the data function board and the detection unit, and the device comprises: a parameter acquisition module configured to acquire a detector-ground coupling response parameter detected by the measurement coupling node; a parameter determination module configured to obtain a plurality of frequency points according to a measurement experiment, and divide the detector-ground coupling response parameter into a plurality of frequency bands according to the plurality of frequency points; a segmented processing module configured to process the plurality of frequency bands respectively by using corresponding processing methods according to the frequency response characteristics of the measurement coupling node; and a result output module configured to combine the detector-ground coupling response parameters of the plurality of frequency bands processed respectively to form new detector-ground coupling response parameters as detector-ground coupling response parameters after coupling deconvolution.

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