Method, device, equipment and storage medium for determining sliding time interval of controllable vibrator

Abstract

The present application provides a method, device, equipment and storage medium for determining the sliding time interval of a controllable vibrator. The method comprises: obtaining a source characteristic signal emitted by a controllable vibrator, the source characteristic signal being generated by the controllable vibrator on the target surface; drawing multiple sets of time-frequency spectra based on the source characteristic signal; and determining the target sliding time interval based on the multiple sets of time-frequency spectra. The method of the present application reduces the workload of laying lines and improves the efficiency of determining the sliding time interval of a controllable vibrator.

Description

Technical Field

[0001] The present application relates to the field of seismic exploration, and in particular to a method, device, equipment and storage medium for determining a sliding time interval of a controllable vibrator. Background Art

[0002] Controllable source sliding scanning excitation construction means that a seismic team is usually equipped with multiple sets of construction sources. When the previous set of sources has not completed scanning, the next set of sources will start scanning, realizing sliding scanning construction. It is one of the commonly used methods for efficient data collection. Among them, the time interval between source groups, that is, the sliding time interval, directly affects the quality of the collected data.

[0003] At present, in order to determine the sliding time interval, before the seismic team starts construction, any one of the first shot arrangements is used as a test line, and at least two seismic sources are deployed at a designated location to transmit scanning signals to the ground in succession according to the preset sliding time interval, and then the single shot reflection signal data at the preset sliding time interval is collected on the test line. By analyzing the single shot reflection signal data at multiple preset sliding time intervals, the interference of high-order harmonics on the fundamental wave in the single shot data at different sliding time intervals can be obtained, thereby determining the sliding time interval used in the construction. In addition, the sliding time intervals used on different surfaces within the construction range may be different, and need to be tested separately.

[0004] The above method of determining the sliding time interval adds extra cable-laying work to the seismic team and takes too long. Summary of the invention

[0005] The present application provides a method, device, equipment and storage medium for determining a sliding time interval of a controllable vibrator, so as to solve the problem that the prior art of determining the sliding time interval is time-consuming and inefficient.

[0006] In a first aspect, the present application provides a method for determining a sliding time interval of a controllable vibrator, comprising:

[0007] Acquire the source characteristic signal emitted by the vibrator, where the source characteristic signal is generated by the vibrator's own seismicity on the target surface;

[0008] Draw multiple sets of time-frequency spectra based on the characteristic signals of the earthquake source;

[0009] According to multiple sets of time-frequency spectra, a target sliding time interval is determined.

[0010] Optionally, multiple sets of time-frequency spectra are plotted based on the earthquake source characteristic signals, including:

[0011] Repeat the earthquake source characteristic signal at least once with a preset sliding time interval as a period, and draw a set of time-frequency spectra;

[0012] Repeat this step to draw multiple sets of time-frequency spectra, and the multiple sets of time-frequency spectra correspond to different preset sliding time intervals.

[0013] Optionally, the earthquake source characteristic signal includes a force signal, and the time-frequency spectrum is a time-force signal-energy spectrum.

[0014] Optionally, determining a target sliding time interval according to multiple sets of time-frequency spectra includes:

[0015] If, in the multiple sets of time-frequency spectra, the second-order harmonic of the latter shot of the first time-frequency spectrum interferes with the fundamental wave of the former shot, it is determined that the target sliding time interval is greater than the preset sliding time interval of the first time-frequency spectrum.

[0016] Optionally, determining a target sliding time interval according to multiple sets of time-frequency spectra includes:

[0017] If, in the multiple sets of time-frequency spectra, the third-order harmonic of the latter shot of the second time-frequency spectrum interferes with the fundamental wave of the former shot, it is determined that the target sliding time interval is greater than the preset sliding time interval of the second time-frequency spectrum.

[0018] Optionally, determining a target sliding time interval according to multiple sets of time-frequency spectra includes:

[0019] If, in the multiple sets of time-frequency spectra, the second-order harmonic of the latter shot of the third time-frequency spectrum does not interfere with the fundamental wave of the former shot, it is determined that the target sliding time interval is less than the preset sliding time interval of the third time-frequency spectrum.

[0020] In a second aspect, the present application provides a device for determining a sliding time interval of a controllable vibrator, comprising:

[0021] An acquisition module is used to acquire a source characteristic signal emitted by a controllable seismic source, where the source characteristic signal is generated by the controllable seismic source;

[0022] A drawing module is used to draw multiple sets of time-frequency spectra according to the earthquake source characteristic signals;

[0023] The determination module is used to determine the target sliding time interval according to multiple sets of time-frequency spectra.

[0024] In a third aspect, the present application provides an electronic device, including: a memory and a processor;

[0025] The memory is used to store computer programs; the processor is used to execute the computer programs stored in the memory to implement the method for determining the sliding time interval of the controllable vibrator in the first aspect and any one of the embodiments of the first aspect.

[0026] In a fourth aspect, the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the method for determining the sliding time interval of a controllable seismic source in the first aspect and any one of the embodiments of the first aspect is implemented.

[0027] In a fifth aspect, the present application provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the method for determining the sliding time interval of a controllable seismic source in the first aspect and any one of the embodiments of the first aspect.

[0028] The method, device, equipment and storage medium for determining the sliding time interval of a controllable vibrator provided by the present application obtains the source characteristic signal emitted by the controllable vibrator, draws multiple sets of time-frequency spectra based on the source characteristic signal, and then determines the target sliding time interval based on the multiple sets of time-frequency spectra. Since the source characteristic signal is the signal emitted by the controllable vibrator, rather than the signal reflected by the target layer, there is no need to lay and arrange, which reduces the workload and shortens the time length for determining the sliding time interval. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of a scenario for determining a sliding time interval;

[0031] Figure 2 A flow chart of a method for determining a sliding time interval of a controllable vibrator provided in one embodiment of the present application;

[0032] Figure 3 A schematic diagram of different surface harmonic development conditions provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of scanning time and listening time provided in an embodiment of the present application;

[0034] Figure 5 A time-frequency spectrum comparison diagram of different preset sliding time intervals provided in an embodiment of the present application;

[0035] Figure 6 A schematic diagram of the structure of a device for determining a sliding time interval of a controllable vibrator provided in one embodiment of the present application;

[0036] Figure 7 A schematic diagram of a software application interface for determining a sliding time interval provided in an embodiment of the present application;

[0037] Figure 8 A schematic diagram of the hardware structure of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The terms "first", "second", "third", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances. For example, without departing from the scope of this document, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0040] The word "if" as used herein may be interpreted as "at" or "when" or "in response to determining," depending on the context.

[0041] A controllable seismic source is a mechanical seismic source that generates seismic fluctuations by continuously impacting the ground through a vibrating plate that is tightly coupled to the earth. It transmits a set of continuous vibrating scanning signals to the underground in a reaction manner. After processing and identifying the reflected wave signals received on the ground, the structural morphology and occurrence of underground geological targets can be interpreted.

[0042] The same seismic team is usually equipped with multiple groups of construction sources. When the previous group of sources has not completed scanning, the next group of sources starts scanning. By compressing the time interval between source groups, sliding scanning construction is realized to improve the production efficiency of the seismic team. At this time, the number of controllable source groups * sliding time interval > the average period of one group of controllable sources to complete one shot. However, while the sliding scanning construction improves production efficiency, it introduces inter-group harmonic interference, that is, the high-order harmonics of the next shot will interfere with the fundamental wave of the previous shot. Therefore, the sliding time interval has a great impact on the quality of the collected data.

[0043] At present, the sliding time interval used in a certain surface is determined. Taking a certain construction as an example, its terrain is mainly desert and relatively flat, which is suitable for efficient acquisition of controllable vibrator. The basic information of the construction is shown in Table 1. The wireless node instrument Geospace Seismic Recorder (GSR) is used for construction. There are 88,200 detection points and 294 receiving lines in the work area. Each receiving line is arranged with 300 detection points. The number of single-line receiving channels of the observation system is 144. At least 16 receiving lines need to be laid before the first shot can start production. Figure 1As shown, before the start of construction, the line team lays and arranges normally. The test line can be selected from any of the 16 receiving lines used for the first shot, and is generally selected from a receiving line with relatively simple terrain. During the test, at least two seismic sources are used to transmit scanning signals to the ground at designated locations, and then the reflection signal data of the target layer is collected on the test line. The collected data is the data of signal superposition after multiple excitations. It can be understood that the high-order harmonics of the N+1 shot and the effective data of the N shot are mixed together and cannot be clearly distinguished. This is called single-shot data. Repeat the above operation with different sliding time intervals to obtain single-shot data at different sliding time intervals. By analyzing the single-shot data, the interference of the single-shot high-order harmonics on the fundamental wave can be obtained, thereby determining the sliding time interval used on the surface.

[0044] For example, according to the formula The calculated minimum sliding time interval is shown in Table 2.

[0045] Among them, T i represents the sliding time interval, k represents the harmonic order, and f E represents the stop frequency, f B represents the starting frequency, and T represents the scanning length.

[0046] The sliding time can only be determined through outdoor test collection and indoor data analysis through the above-mentioned laying arrangement, which generally takes 2-3 days, and can only be tested using the first production arrangement at the start of construction. Sliding time tests are required on different surfaces in the work area, which adds additional line-laying workload to the seismic team.

[0047] In addition, when using the node instrument GSR for construction, since GSR cannot transmit the collected data in real time, it is necessary to recover the GSR after the collection is completed and then use special equipment to process the data to obtain the shot gathering data that can be used for analysis. This construction requires the recovery of at least 144 GSRs (such as Figure 1 The shot gather data can only be obtained by looking at the test line indication position in the middle, which further prolongs the time required to determine the sliding time interval.

[0048] Table 1

[0049] Work area <![CDATA[1221.24Km 2 ]]> Number of guns 165252 guns Detection points 88200 Collection Instrument GSR node instrument (10500 channels) Number of earthquake sources 12 Combination 2 units*1 time Construction method Slide Scan Slide time Test determination Scan length 10s Scan frequency 6-78Hz Output Range 75％ Observation system 16 lines*12 guns*144 tracks

[0050] Table 2

[0051]

[0052] Therefore, using the above method to determine the sliding interval time is time-consuming and inefficient.

[0053] In response to the above problems, the present application proposes a method, device, equipment and storage medium for determining the sliding time interval of a controllable seismic source. The method of the present application obtains the source characteristic signal emitted by the controllable seismic source, draws multiple sets of time-frequency spectra based on the source characteristic signal, and then determines the target sliding time interval based on the multiple sets of time-frequency spectra. Since the source characteristic signal is the signal emitted by the controllable seismic source, rather than the signal reflected by the target layer, there is no need to lay and arrange, and there is no need to recover the node equipment, which reduces the workload and shortens the time to determine the sliding time interval. It can also more clearly analyze the interference of the higher-order harmonics of the subsequent shot on the fundamental wave of the previous shot, and more quickly determine the target sliding time interval.

[0054] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0055] In the present application, the electronic device is used as the execution subject to execute the sliding time interval determination method of the following embodiment. Specifically, the execution subject can be a hardware device of the electronic device, or a software application that implements the following embodiment in the electronic device, or a computer-readable storage medium installed with the software application that implements the following embodiment, or a code of the software application that implements the following embodiment.

[0056] Figure 2 FIG. 1 is a flow chart showing a method for determining a time interval of a controllable vibrator sliding provided by an embodiment of the present application. Figure 2 As shown, with the electronic device as the execution subject, the method of this embodiment may include the following steps:

[0057] S101, obtaining a source characteristic signal emitted by a controllable seismic source, wherein the source characteristic signal is generated by the controllable seismic source self-seismic on the target surface.

[0058] In this embodiment, the source characteristic signal emitted by the controllable vibrator can be collected by a navigation device installed on the controllable vibrator that can record the source characteristic signal, such as the navigation system VSC developed by the Vibrator Service Center (VSC) of Oriental Geophysical Company, the Digital-Seismic System (DSS) developed by the International Exploration Division of Oriental Geophysical Company, and the navigation system Guidance developed by Sercel of France. After the navigation device collects the source characteristic signal, the data can be downloaded from the storage of the navigation device through a mobile storage, and the data file is usually in the Segd or Sgy format.

[0059] Since the vibrator will produce different degrees of distortion on different surfaces, the high-order harmonics of the transmitted scanning signal will be different, such as Figure 3 shown. Figure 3 The thickness and continuity of the middle line can reflect the strength of the harmonic energy. Figure 3 As shown in (c), the discontinuity of the second-order harmonic line indicates that the energy is weak at that location. The reason may be that the mechanical vibration system of the controllable source is well coupled with the earth, and the high-order harmonic development is weakened. Therefore, if the construction scope includes other types of surfaces, it is necessary to re-determine the sliding time interval of other types of surfaces.

[0060] It should be understood that the preset sliding time interval is greater than the listening time and less than the scanning time of the vibrator. The scanning time is the length of a single excitation of the vibrator, and the listening time is the length of a single shot recording. Figure 4 shown.

[0061] If the sliding time interval is less than the listening time, the data of multiple scans are collected for aliasing, not sliding scanning. If the sliding time interval is greater than the scanning time, the multiple groups of controllable vibrators are scanned alternately, not sliding scanning.

[0062] S102. Draw multiple sets of time-frequency spectra based on the earthquake source characteristic signals.

[0063] In this embodiment, different time spectra correspond to different preset sliding time intervals. The time spectrum can reflect the development of the fundamental wave and high-order harmonics, such as Figure 5 shown.

[0064] In one example, step S102 includes: repeating the earthquake source characteristic signal at least once with a preset sliding time interval as a period to obtain a set of time-frequency spectra; repeating this step to obtain multiple sets of time-frequency spectra, and the multiple sets of time-frequency spectra correspond to different preset sliding time intervals.

[0065] The source characteristic signal is a single shot data, which is repeated at least once with a preset sliding time interval as a period. Specifically, in the time spectrum, the source characteristic signal is shifted by a preset sliding time interval to form a set of time spectra. In other words, a set of time spectra contains at least two sets of repeated source characteristic signals, such as Figure 5 As shown, by translating the earthquake source characteristic signal by different preset sliding time intervals, multiple sets of time-frequency spectra can be formed.

[0066] Compared with the prior art, the multiple sets of time-frequency spectra drawn according to the source characteristic signals in this embodiment can more clearly analyze the interference of the higher-order harmonics of the latter shot on the fundamental wave of the former shot, thereby more quickly determining the target sliding time interval.

[0067] Optionally, the earthquake source characteristic signal includes a force signal, and the time-frequency spectrum is a time-force signal-energy spectrum.

[0068] In this example, the force signal can reflect the change relationship between the harmonic frequency and time, and the energy spectrum can reflect the strength of each order of harmonic energy.

[0069] If at a certain moment during the scanning time, the high-order harmonics of the next shot and the fundamental wave of the previous shot are collected at the same time, a frequency curve intersection will occur in the time-frequency spectrum. At this time, it cannot be considered that the next shot interferes with the previous shot based on this alone, but it is also necessary to observe the energy strength of the high-order harmonics of the next shot at the intersection of the curves. If the energy at this point is less than the threshold, it can be considered that the high-order harmonics of the next shot do not interfere with the fundamental wave of the previous shot, otherwise, interference occurs.

[0070] Therefore, the time-force signal-energy spectrum can help accurately determine whether the higher-order harmonics of the next shot interfere with the fundamental wave of the previous shot, making the final sliding time interval more accurate.

[0071] S103: Determine a target sliding time interval according to the multiple sets of time-frequency spectra.

[0072] In one example, step S103 includes: if in the multiple groups of time-frequency spectra, the second-order harmonic of the latter shot of the first time-frequency spectrum interferes with the fundamental wave of the previous shot, determining that the target sliding time interval is greater than the preset sliding time interval of the first time-frequency spectrum.

[0073] like Figure 5 As shown in (a), the preset sliding time interval is 6s. When the scanning time is 10s, the second-order harmonic of the N+1th scan and the fundamental wave of the Nth scan are collected at the same time, that is, the second-order harmonic of the latter shot interferes with the fundamental wave of the former shot, and it can be determined that the target sliding time interval is greater than 6s. At this time, it can be judged whether the target sliding time interval is greater than 7s based on the time-frequency spectrum with a preset sliding time interval of 7s.

[0074] In one example, step S103 includes: if, in the multiple groups of time-frequency spectra, the third-order harmonic of the latter shot of the second time-frequency spectrum interferes with the fundamental wave of the former shot, determining that the target sliding time interval is greater than the preset sliding time interval of the second time-frequency spectrum.

[0075] like Figure 5 As shown in (b), the preset sliding time interval is 7s. When the scanning time is 10s, the third-order harmonic of the N+1th scan and the fundamental wave of the Nth scan are collected at the same time, that is, the third-order harmonic of the latter shot interferes with the fundamental wave of the former shot, and it can be determined that the target sliding time interval is greater than 7s. At this time, it can be judged whether the target sliding time interval is greater than 8s based on the time-frequency spectrum with a preset sliding time interval of 8s.

[0076] like Figure 5As shown in (c), the preset sliding time interval is 8s. When the scanning time is 10s, the third-order harmonic of the N+1th scan and the fundamental wave of the Nth scan are not collected at the same time, that is, the third-order harmonic of the latter shot does not interfere with the fundamental wave of the former shot. Then, it can be determined that the target sliding time interval is less than 8s, for example, it is set to 7.5s. Alternatively, if the construction efficiency when the sliding time interval is 8s is feasible, the target sliding time interval can also be determined to be 8s.

[0077] In one example, step S103 includes: if in the multiple groups of time-frequency spectra, the second-order harmonic of the latter shot of the third time-frequency spectrum does not interfere with the fundamental wave of the previous shot, determining that the target sliding time interval is less than the preset sliding time interval of the third time-frequency spectrum.

[0078] like Figure 5 As shown in (d), the preset sliding time interval is 9s. When the scanning time is 10s, the second-order harmonic of the N+1th scan and the fundamental wave of the Nth scan are not collected simultaneously, that is, the second-order harmonic of the latter shot does not interfere with the fundamental wave of the former shot. In order to improve the construction efficiency, the target sliding time interval can be shortened to less than 9s.

[0079] Likewise, if Figure 5 As shown in (e), the preset sliding time interval is 10s. When the scanning time is 10s, the harmonics of the N+1th scan and the harmonics of the Nth scan have no interference at all. In order to improve the construction efficiency, the target sliding time interval can be shortened to less than 10s.

[0080] The method for determining the sliding time interval of a controllable seismic source provided in the present application obtains the source characteristic signal of the controllable seismic source, draws the time-frequency spectrum at different sliding time intervals according to the source characteristic signal, and determines the target sliding time interval according to the time-frequency spectrum, thereby reducing the workload of line laying and improving the efficiency of determining the sliding time interval. Moreover, according to the method of the present application, the determined sliding time interval can still improve the construction efficiency while ensuring the quality of data acquisition.

[0081] Figure 6 FIG. 2 shows a schematic diagram of a structure of a device for determining a sliding time interval of a controllable vibrator provided in an embodiment of the present application. Figure 6 As shown, the controllable vibroseis sliding time interval determining device 10 of this embodiment is used to implement the operation corresponding to the electronic device in any of the above method embodiments. The controllable vibroseis sliding time interval determining device 10 of this embodiment includes:

[0082] An acquisition module 11 is used to acquire a source characteristic signal emitted by a controllable seismic source, where the source characteristic signal is generated by the controllable seismic source during earthquakes;

[0083] A drawing module 12 is used to draw multiple sets of time-frequency spectra according to the earthquake source characteristic signals;

[0084] The determination module 13 is used to determine a target sliding time interval according to the multiple sets of time-frequency spectra.

[0085] The device 10 for determining the sliding time interval of a controllable seismic source provided in the embodiment of the present application can execute the above method embodiment. Its specific implementation principle and technical effects can be found in the above method embodiment, and this embodiment will not be repeated here.

[0086] In one embodiment, the method for determining the sliding time interval of the controllable vibrator can also be implemented by a software application, and the software interface is as follows: Figure 7 shown.

[0087] Before the software application acquires the source characteristic signal emitted by the controllable vibrator, parameters can be preset, such as force signal, channel number, data sampling rate and preset sliding time interval. The channel number is the data number, and the sampling rate can be set to 0.5ms, 1ms, 2ms, etc.

[0088] The software application obtains the source characteristic signal emitted by the controllable source. Specifically, it can load the Segd or Sgy file, and then draw the time-frequency spectrum corresponding to different sliding time intervals to obtain the development of the fundamental wave and different high-order harmonics. Then, based on multiple sets of time-frequency spectra, the target sliding time interval is determined.

[0089] That is to say, the software application can execute the above method embodiment. Its specific implementation principles and technical effects can be found in the above method embodiment, and this embodiment will not be repeated here.

[0090] Figure 8 FIG. 1 shows a hardware structure diagram of an electronic device provided in an embodiment of the present application. Figure 8 As shown, the electronic device 20 is used to implement the operations corresponding to the electronic device in any of the above method embodiments. The electronic device 20 of this embodiment may include: a memory 21, a processor 22 and a communication interface (not shown in the figure).

[0091] The memory 21 is used to store computer programs. The memory 21 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory, and may also be a USB flash drive, a mobile hard disk, a read-only memory, a disk or an optical disk.

[0092] The processor 22 is used to execute the computer program stored in the memory to implement the method for determining the sliding time interval of the controllable vibrator in the above embodiment. For details, please refer to the relevant description in the above method embodiment. The processor 22 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the invention can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor.

[0093] Optionally, the memory 21 may be independent or integrated with the processor 22 .

[0094] When the memory 21 is a device independent of the processor 22, the electronic device 20 may further include a bus. The bus is used to connect the memory 21 and the processor 22. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0095] The communication interface may be connected to the processor 22 via a bus. The processor 22 may control the communication interface to implement the functions of receiving and sending signals.

[0096] The electronic device provided in this embodiment can be used to execute the above-mentioned method for determining the sliding time interval of a controllable vibrator. Its implementation method and technical effect are similar, and this embodiment will not be repeated here.

[0097] The present application also provides a computer-readable storage medium, in which a computer program / instruction is stored. When the computer program / instruction is executed by a processor, it is used to implement the methods provided in the various embodiments described above.

[0098] Among them, the computer-readable storage medium can be a computer storage medium or a communication medium. The communication medium includes any medium that facilitates the transmission of a computer program from one place to another. The computer storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer. For example, a computer-readable storage medium is coupled to a processor so that the processor can read information from the computer-readable storage medium and write information to the computer-readable storage medium. Of course, the computer-readable storage medium can also be a component of the processor. The processor and the computer-readable storage medium can be located in an application-specific integrated circuit (ASIC). In addition, the ASIC can be located in a user device. Of course, the processor and the computer-readable storage medium can also exist in a communication device as discrete components.

[0099] Specifically, the computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0100] The present application also provides a computer program product, which includes a computer program / instruction, and the computer program / instruction is stored in a computer-readable storage medium. At least one processor of the device can read the computer program / instruction from the computer-readable storage medium, and at least one processor executes the computer program / instruction so that the device implements the methods provided in the various embodiments described above.

[0101] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of modules is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0102] Among them, each module can be physically separated, for example, installed in different locations of a device, or installed on different devices, or distributed on multiple network units, or distributed on multiple processors. Each module can also be integrated together, for example, installed in the same device, or integrated in a set of codes. Each module can exist in the form of hardware, or can also exist in the form of software, or can also be implemented in the form of software plus hardware. The present application can select some or all of the modules according to actual needs to achieve the purpose of the present embodiment.

[0103] It should be understood that, although the various steps in the flowcharts in the above-described embodiments are sequentially displayed according to the indications of the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and they can be executed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily to be carried out sequentially, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for determining the sliding time interval of a controllable vibrator, characterized in that: The method comprises: Acquiring a source characteristic signal emitted by a controllable vibrator, wherein the source characteristic signal is generated by the controllable vibrator's own seismicity on the target surface; the source characteristic signal is collected by a navigation device installed on the controllable vibrator and capable of recording the source characteristic signal; Repeat the earthquake source characteristic signal at least once with a preset sliding time interval as a period, and draw a set of time-frequency spectra; repeat this step to draw multiple sets of time-frequency spectra, and the multiple sets of time-frequency spectra correspond to different preset sliding time intervals; the time-frequency spectra are time-force signal-energy spectra; Determining a target sliding time interval according to the multiple groups of time-frequency spectra includes: if, in the multiple groups of time-frequency spectra, the second-order harmonic of a later shot of a first time-frequency spectrum interferes with the fundamental wave of a previous shot, determining that the target sliding time interval is greater than the preset sliding time interval of the first time-frequency spectrum; if, in the multiple groups of time-frequency spectra, the third-order harmonic of a later shot of a second time-frequency spectrum interferes with the fundamental wave of the previous shot, determining that the target sliding time interval is greater than the preset sliding time interval of the second time-frequency spectrum; if, in the multiple groups of time-frequency spectra, the second-order harmonic of a later shot of a third time-frequency spectrum does not interfere with the fundamental wave of the previous shot, determining that the target sliding time interval is less than the preset sliding time interval of the third time-frequency spectrum.

2. A device for determining a time interval of sliding of a controllable vibrator, characterized in that: The device comprises: An acquisition module, used for acquiring a source characteristic signal emitted by a controllable seismic source, wherein the source characteristic signal is generated by the controllable seismic source during seismic operation; the source characteristic signal is collected by a navigation device installed on the controllable seismic source and capable of recording the source characteristic signal; A drawing module is used to repeat the earthquake source characteristic signal at least once with a preset sliding time interval as a period to draw a set of time-frequency spectra; repeat this step to draw multiple sets of time-frequency spectra, and the multiple sets of time-frequency spectra correspond to different preset sliding time intervals; the time-frequency spectra are time-force signal-energy spectra; The determination module is used to determine the target sliding time interval according to the multiple groups of time-frequency spectra, including: if the second-order harmonic of the latter shot of the first time-frequency spectrum in the multiple groups of time-frequency spectra interferes with the fundamental wave of the previous shot, then the target sliding time interval is determined to be greater than the preset sliding time interval of the first time-frequency spectrum; if the third-order harmonic of the latter shot of the second time-frequency spectrum in the multiple groups of time-frequency spectra interferes with the fundamental wave of the previous shot, then the target sliding time interval is determined to be greater than the preset sliding time interval of the second time-frequency spectrum; if the second-order harmonic of the latter shot of the third time-frequency spectrum in the multiple groups of time-frequency spectra does not interfere with the fundamental wave of the previous shot, then the target sliding time interval is determined to be less than the preset sliding time interval of the third time-frequency spectrum.

3. An electronic device, characterized in that: The device comprises: a memory and a processor; The memory is used to store computer programs; The processor is used to execute the computer program stored in the memory to implement the method for determining the sliding time interval of a controllable vibrator as claimed in claim 1.

4. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it is used to implement the method for determining the sliding time interval of a controllable vibrator as claimed in claim 1.

5. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method for determining the sliding time interval of a controllable vibroseis source according to claim 1 is implemented.

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