CN113836855B - Saturated signal characteristic correction method, device, electronic equipment and storage medium - Google Patents
Saturated signal characteristic correction method, device, electronic equipment and storage medium Download PDFInfo
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- CN113836855B CN113836855B CN202111004053.7A CN202111004053A CN113836855B CN 113836855 B CN113836855 B CN 113836855B CN 202111004053 A CN202111004053 A CN 202111004053A CN 113836855 B CN113836855 B CN 113836855B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The application provides a saturated signal characteristic correction method, a device, electronic equipment and a storage medium, wherein the method comprises the following steps: setting a later-stage elastic wave signal saturation judgment threshold; collecting a real-time signal of the later-stage elastic wave; judging whether the rear-stage elastic wave real-time signal reaches the saturation judgment threshold value or not; if the real-time signal of the rear-stage elastic wave is saturated, acquiring the real-time signal of the front-stage elastic wave; and correcting the characteristics of the real-time signals of the rear-stage elastic waves by using the real-time signals of the front-stage elastic waves.
Description
Technical Field
The present application relates to the field of signal processing technologies, and in particular, to a method and apparatus for correcting an elastic wave saturation signal characteristic, an electronic device, and a storage medium.
Background
When the signal is collected, an amplifying circuit is used in many cases, so that the signal is amplified more sensitively, the signal is saturated easily, and errors are caused in the subsequent signal characteristic analysis process.
It is therefore necessary to propose a method for correcting the subsequent saturation characteristics based on the previous unsaturated characteristics.
Disclosure of Invention
In order to solve the above problems, the present application provides a saturated signal characteristic correcting method, comprising the following steps:
collecting a real-time signal of the later-stage elastic wave;
judging whether the rear-stage elastic wave real-time signal reaches a preset saturation judgment threshold value or not;
and if the real-time signal of the rear-stage elastic wave is saturated, correcting the real-time signal characteristics of the rear-stage elastic wave by using the real-time signal of the front-stage elastic wave.
Further, the saturation determination threshold includes: the saturation amplitude of the latter stage elastic wave signal or the energy value of the elastic wave signal in a number of times.
Further, the correction includes:
and determining a signal frequency band gain curve of the front-stage to rear-stage circuit, and correcting the real-time signal characteristics of the rear-stage elastic wave according to the frequency band gain curve.
Further, the determining the signal band gain curve of the pre-stage to post-stage circuit includes:
collecting a rear-stage elastic wave real-time signal when the rear-stage elastic wave signal does not reach saturation and a corresponding front-stage elastic wave real-time signal;
respectively determining signal characteristic frequency spectrums of the rear-stage elastic wave real-time signal and the front-stage elastic wave real-time signal;
and obtaining a signal band gain curve according to the post-stage signal characteristic spectrum and the pre-stage signal characteristic spectrum.
Further, when the rear-stage elastic wave real-time signal is saturated, a corresponding front-stage elastic wave real-time signal is obtained, and the characteristic frequency spectrum of the front-stage elastic wave real-time signal is determined according to the front-stage elastic wave real-time signal; and obtaining the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum of the real-time signal of the front-stage elastic wave and the signal frequency band gain curve.
Further, the correction includes:
obtaining corresponding frequency domain signal effective points according to the real-time signal length of the preceding-stage elastic wave;
determining the position of a signal frequency band gain curve corresponding to each effective point according to the effective points, and determining a correction coefficient of the signal frequency band gain curve;
and determining a correction coefficient curve according to the effective point number and the corresponding gain coefficient.
Further, the correction includes:
and obtaining the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum and the correction coefficient curve of the front-stage elastic wave signal.
The application also provides a saturated signal characteristic correcting device, which comprises:
the acquisition module is used for acquiring the front-stage elastic wave real-time signal and the rear-stage elastic wave real-time signal;
the comparison module is used for comparing whether the rear-stage elastic wave real-time signal reaches a preset saturation judgment threshold value or not;
and the correction module is used for correcting the characteristics of the rear-stage elastic wave real-time signal according to the front-stage elastic wave real-time signal.
Further, the saturation determination threshold includes: and storing the saturated amplitude of the subsequent elastic wave signal or the energy value of the subsequent elastic wave signal in a plurality of times.
Further, the correction module includes:
and the correction submodule is used for determining a signal frequency band gain curve of the front-stage to back-stage circuit and correcting the real-time signal characteristics of the back-stage elastic wave according to the signal frequency band gain curve.
Further, the correction submodule includes:
the signal characteristic frequency spectrum unit is used for acquiring a rear-stage elastic wave real-time signal when the rear-stage elastic wave signal does not reach saturation and a signal characteristic frequency spectrum of a corresponding front-stage elastic wave real-time signal;
and the signal band gain curve unit is used for obtaining a signal band gain curve according to the post-stage signal characteristic spectrum and the pre-stage signal characteristic spectrum.
Further, the correction submodule includes: and the post-stage elastic wave real-time signal characteristic correction unit is used for obtaining corrected post-stage elastic wave real-time signal characteristics according to the characteristic frequency spectrum of the pre-stage elastic wave real-time signal and the signal frequency band gain curve when the post-stage elastic wave real-time signal is saturated.
Further, the post-stage elastic wave real-time signal characteristic correction unit includes:
the frequency domain signal effective point number acquisition subunit is used for acquiring corresponding frequency domain signal effective points according to the length of the preceding-stage elastic wave real-time signal;
the correction coefficient subunit is used for determining the position of the signal frequency band gain curve corresponding to each effective point according to the effective point number and determining the correction coefficient of the signal frequency band gain curve;
and the correction coefficient curve subunit is used for determining a correction coefficient curve according to the effective point number and the corresponding gain coefficient.
Further, the post-stage elastic wave real-time signal characteristic correction unit includes:
and the correction calculation subunit obtains the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum and the correction coefficient curve of the front-stage elastic wave signal.
The application also provides electronic equipment comprising the saturation signal characteristic correcting device.
The application also proposes a readable storage medium in which a computer program is stored, the computer program comprising program instructions which, when executed by a processor of a computer signal collector, cause the processor to carry out the method proposed by the application.
Compared with the prior art, the technical scheme of the application has the following advantages:
(1) Signal distortion of a post-stage circuit in the multi-stage amplifying circuit is avoided;
(2) A simple and reliable post-stage circuit signal correction method is provided.
Drawings
FIG. 1 is a flow chart of a saturated signal characteristic correcting method according to an embodiment of the application;
FIG. 2 is a schematic diagram of a two-stage amplifying circuit according to an embodiment of the present application;
FIG. 3 is a schematic diagram of waveforms of the output of the front and rear stages in the unsaturated state according to an embodiment of the application;
FIG. 4 is a schematic diagram of waveforms of the front and rear output stages in a saturated state according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating the conversion of the time domain signal shown in FIG. 3 into a frequency domain signal according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a signal band gain curve of a front-to-back stage signal feature according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a correction coefficient curve corresponding to 128-point effective points according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a saturation signal characteristic correcting apparatus according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
Example 1
As shown in fig. 1, the elastic wave saturation signal characteristic correction method provided by the application comprises the following steps:
s1, acquiring a rear-stage elastic wave real-time signal;
in practical use, a multistage amplifier is often involved, and the present application uses a bipolar amplifier circuit as an example, as shown in fig. 2, a signal is input from a first amplifier, and is amplified by the first amplifier to obtain a first output signal, which is a first-stage output, and is also called a front-stage output; the first output signal is used as an input signal of the second amplifier, and the second output signal is obtained after being amplified by the second amplifier, and is a second-stage output, which is also called a post-stage output.
S2, judging whether the rear-stage elastic wave real-time signal reaches a preset saturation judgment threshold value or not;
as shown in fig. 3, the dashed line represents the waveform of the first output signal, the solid line represents the waveform of the second output signal, and in the unsaturated state, the subsequent stage output has the complete signal waveform. But when signal saturation occurs, as shown in fig. 4, the peak portion of the second output waveform is flattened, i.e., signal saturation occurs. When such saturated signals occur, anomalies in the signal characteristics can occur, resulting in calculation errors at the later analysis. The saturated signal must be processed and corrected to solve the problem of calculation errors.
The main problem of signal saturation is that the amplification factor is too large, and in order to judge whether the signal of the later stage is saturated, the application presets a signal saturation judging threshold value of the elastic wave of the later stage. Specifically, when the amplitude of the acquired later-stage elastic wave signal is greater than a set preset value, or the energy value of the elastic wave signal within a plurality of time periods acquired in real time is greater than the set preset value, the later-stage output signal is judged to be saturated.
And comparing the amplitude or energy value of the acquired rear-stage elastic wave real-time signal with a preset saturation judgment threshold value, and judging whether the rear-stage elastic wave real-time signal reaches saturation.
And S3, if the rear-stage elastic wave real-time signal is saturated, correcting the rear-stage elastic wave real-time signal characteristic by using the front-stage elastic wave real-time signal. The method comprises the steps of carrying out a first treatment on the surface of the
If the amplitude or energy value of the acquired rear-stage elastic wave real-time signal exceeds a preset saturation judgment threshold value, the rear-stage elastic wave real-time signal is saturated and needs to be started for correction, so that the front-stage elastic wave real-time signal is acquired.
When signal saturation occurs, the amplification factor cannot be dynamically adjusted in an actual circuit, and thus correction is required from the time of data processing.
The problems that must be solved before correction are: under normal unsaturated state, the data analysis selects the signal output by the later stage, but the signal of the earlier stage circuit is selected during saturation, the process of amplifying and filtering the signal from the earlier stage to the later stage is absent, if the signal characteristics of the earlier stage are directly used for calculation, the variance of the signal characteristics can become large, and the characteristic model can not be converged.
It is necessary that the front-stage signal features are restored to the state of the rear-stage signal features, and this restoration process is a correction.
The restoration process is to simulate the effect of hardware amplification during signal processing, but the signal processing cannot amplify and filter the received time domain signal in real time, so that the correction process is simulated from the analysis of the frequency domain signal.
As shown in fig. 3, the signal characteristics of the front and rear stage outputs in the unsaturated state have complete waveforms; the preceding stage signal and the succeeding stage signal are subjected to frequency domain conversion, that is, the time domain signal shown in fig. 3 is converted into the frequency domain signal shown in fig. 5, and the signal characteristics thereof are extracted based on fig. 3 to obtain the signal shown in fig. 5.
Further, the signal band gain curve is obtained by dividing the characteristics in the later stage signal by the characteristics of the earlier stage signal at the corresponding frequency position, as shown in fig. 6.
The signal band gain curve is not a correction coefficient. The explanation is as follows:
the obtained band gain curve is obtained by taking all time domain signals into frequency domain conversion (the time domain signals are obtained in advance), and the length of all time domain signals is usually far longer than that of a section of signals acquired in real time, for example, the length of all time domain signals is 5000 points, the number of effective points is 2500 points according to a 128K sampling rate, and the frequency corresponding to each effective point is 128K/2500. As shown in fig. 7, the abscissa is frequency, and 2500 points are on the abscissa.
In the process of real-time processing, in order to consider the requirements of processing time and real-time performance, all time domain signals cannot be calculated, so that a segment of signal is usually subjected to frequency domain conversion, and the length of the segment of signal can be 256, 512 or other points. Taking 256 points as an example, the number of effective points after frequency domain conversion is 128 points, and assuming that the sampling rate is 128K, each effective point corresponds to 1K in the frequency domain feature, the first point corresponds to 1K, the second point corresponds to 2K, and so on. If the real-time elastic wave signal is the real-time elastic wave signal with other lengths, the number of points on the abscissa is half of the length of the real-time elastic wave signal, and the frequency span corresponding to each point is the sampling rate divided by the effective number.
When the number of effective points is obtained, the frequency corresponding to each effective point is known. This frequency can find the corresponding frequency position in the signal band gain curve, and the value corresponding to the frequency position is the correction coefficient value of the frequency corresponding to the effective point.
The core is how to extract the correction coefficient curve from the signal band gain curve during real-time processing.
As shown in fig. 7, a correction coefficient curve corresponding to 128 points is illustrated, and the number of abscissas in fig. 7 is changed from 2500 points to 128 points in equal proportion to the signal band gain curve in fig. 6.
And after the correction coefficient is obtained, multiplying the signal characteristic corresponding to the saturated signal front stage by the correction coefficient to obtain the corrected signal characteristic.
Example 2
Corresponding to the method for correcting the saturated signal characteristics in embodiment 1, the present application also provides a saturated signal characteristic correcting device, as shown in fig. 8, where the saturated signal characteristic correcting device 800 provided by the present application includes:
the acquisition module 802 is configured to acquire a front-stage elastic wave real-time signal and a rear-stage elastic wave real-time signal;
a comparison module 803, configured to compare whether the subsequent-stage elastic wave real-time signal reaches a preset saturation determination threshold;
and the correction module 804 is configured to correct the characteristics of the real-time signal of the rear-stage elastic wave according to the real-time signal of the front-stage elastic wave.
The device further comprises a storage module 801, configured to store a preset post-stage elastic wave real-time signal saturation determination threshold;
storing the saturation determination threshold value of the subsequent stage elastic wave signal includes: the saturated amplitude of the latter-stage elastic wave signal or the energy value of the latter-stage elastic wave signal in a plurality of times is stored.
Further, the correction module includes: and the correction submodule is used for determining a signal frequency band gain curve of the front-stage to back-stage circuit and correcting the real-time signal characteristics of the back-stage elastic wave according to the signal frequency band gain curve.
Wherein the correction submodule includes:
the signal characteristic frequency spectrum unit is used for acquiring a rear-stage elastic wave real-time signal when the rear-stage elastic wave signal does not reach saturation and a signal characteristic frequency spectrum of a corresponding front-stage elastic wave real-time signal;
and the signal band gain curve unit is used for obtaining a signal band gain curve according to the post-stage signal characteristic spectrum and the pre-stage signal characteristic spectrum.
Further, the correction submodule includes: and the post-stage elastic wave real-time signal characteristic correction unit is used for obtaining corrected post-stage elastic wave real-time signal characteristics according to the characteristic frequency spectrum of the pre-stage elastic wave real-time signal and the signal frequency band gain curve when the post-stage elastic wave real-time signal is saturated.
Further, the post-stage elastic wave real-time signal characteristic correction unit includes:
the frequency domain signal effective point number acquisition subunit is used for acquiring corresponding frequency domain signal effective points according to the length of the preceding-stage elastic wave real-time signal;
the correction coefficient subunit is used for determining the position of the signal frequency band gain curve corresponding to each effective point according to the effective point number and determining the correction coefficient of the signal frequency band gain curve;
and the correction coefficient curve subunit is used for determining a correction coefficient curve according to the effective point number and the corresponding gain coefficient.
The obtained band gain curve is obtained by taking all time domain signals into frequency domain conversion (the time domain signals are obtained in advance), and the length of all time domain signals is usually far longer than that of a section of signals acquired in real time, for example, the length of all time domain signals is 5000 points, the number of effective points is 2500 points according to a 128K sampling rate, and the frequency corresponding to each effective point is 128K/2500. As shown in fig. 7, the abscissa is frequency, and 2500 points are on the abscissa.
In the process of real-time processing, in order to consider the requirements of processing time and real-time performance, all time domain signals cannot be calculated, so that a segment of signal is usually subjected to frequency domain conversion, and the length of the segment of signal can be 256, 512 or other points. Taking 256 points as an example, the number of effective points after frequency domain conversion is 128 points, and assuming that the sampling rate is 128K, each effective point corresponds to 1K in the frequency domain feature, the first point corresponds to 1K, the second point corresponds to 2K, and so on. If the real-time elastic wave signal is the real-time elastic wave signal with other lengths, the number of points on the abscissa is half of the length of the real-time elastic wave signal, and the frequency span corresponding to each point is the sampling rate divided by the effective number.
When the number of effective points is obtained, the frequency corresponding to each effective point is known. This frequency can find the corresponding frequency position in the signal band gain curve, and the value corresponding to the frequency position is the correction coefficient value of the frequency corresponding to the effective point.
Further, the post-stage elastic wave real-time signal characteristic correction unit includes:
and the correction calculation subunit obtains the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum and the correction coefficient curve of the front-stage elastic wave signal.
Specifically, the correction calculation subunit multiplies the characteristic spectrum of the preceding-stage elastic wave signal by a correction coefficient curve to obtain corrected real-time signal characteristics of the subsequent-stage elastic wave.
As shown in fig. 9, the embodiment of the present application further provides an electronic device 900, which includes a processor 901, a memory 902, and a program or an instruction stored in the memory 902 and capable of running on the processor 901, where the program or the instruction implements each process of the above embodiment of the method for correcting the characteristic of the elastic wave saturation signal when executed by the processor 901, and the process can achieve the same technical effect, and for avoiding repetition, a description is omitted herein.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the embodiment of the method for obtaining the elastic wave characteristics, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions, the processes of the conference call recovery method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.
The above description is merely of preferred embodiments of the present application, and the scope of the present application is not limited to the above embodiments, but all equivalent modifications or variations according to the present disclosure will be within the scope of the claims.
Claims (14)
1. A saturated signal characteristic correcting method, characterized by comprising the steps of:
collecting a real-time signal of the later-stage elastic wave;
judging whether the rear-stage elastic wave real-time signal reaches a preset saturation judgment threshold value or not;
if the real-time signal of the rear-stage elastic wave is saturated, correcting the real-time signal characteristics of the rear-stage elastic wave by using the real-time signal of the front-stage elastic wave;
the correction includes:
and determining a signal frequency band gain curve of the front-stage to rear-stage circuit, and correcting the real-time signal characteristics of the rear-stage elastic wave according to the frequency band gain curve.
2. The saturation signal characteristic correcting method according to claim 1, wherein the saturation determination threshold value includes: the saturation amplitude of the latter-stage elastic wave signal or the energy value of the latter-stage elastic wave signal over a number of times.
3. The saturation signal characteristic correcting method according to claim 1, wherein determining the signal band gain curve of the preceding stage to the following stage circuit includes:
collecting a rear-stage elastic wave real-time signal when the rear-stage elastic wave signal does not reach saturation and a corresponding front-stage elastic wave real-time signal;
respectively determining signal characteristic frequency spectrums of the rear-stage elastic wave real-time signal and the front-stage elastic wave real-time signal;
and obtaining a signal band gain curve according to the post-stage signal characteristic spectrum and the pre-stage signal characteristic spectrum.
4. The method for correcting the characteristics of a saturated signal according to claim 1, wherein when the real-time signal of the later-stage elastic wave is saturated, a corresponding real-time signal of the earlier-stage elastic wave is obtained, and the characteristic spectrum of the real-time signal of the earlier-stage elastic wave is determined according to the real-time signal of the earlier-stage elastic wave;
and obtaining the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum of the real-time signal of the front-stage elastic wave and the signal frequency band gain curve.
5. The method of claim 4, wherein said correcting comprises:
obtaining corresponding frequency domain signal effective points according to the real-time signal length of the preceding-stage elastic wave;
determining the position of a signal frequency band gain curve corresponding to each effective point according to the effective points, and determining a correction coefficient of the signal frequency band gain curve;
and determining a correction coefficient curve according to the effective point number and the corresponding correction coefficient.
6. The method of claim 5, wherein said correcting comprises:
and obtaining the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum and the correction coefficient curve of the front-stage elastic wave signal.
7. A saturation signal characteristic correcting apparatus, characterized in that the correcting apparatus comprises:
the acquisition module is used for acquiring the front-stage elastic wave real-time signal and the rear-stage elastic wave real-time signal;
the comparison module is used for comparing whether the rear-stage elastic wave real-time signal reaches a preset saturation judgment threshold value or not;
the correction module is used for correcting the characteristics of the rear-stage elastic wave real-time signals according to the front-stage elastic wave real-time signals;
the correction module includes:
and the correction submodule is used for determining a signal frequency band gain curve of the front-stage to back-stage circuit and correcting the real-time signal characteristics of the back-stage elastic wave according to the signal frequency band gain curve.
8. The saturation signal characteristic correcting apparatus according to claim 7, wherein the saturation determination threshold value includes: and storing the saturated amplitude of the subsequent elastic wave signal or the energy value of the subsequent elastic wave signal in a plurality of times.
9. The saturation signal characteristic correcting apparatus according to claim 7, wherein the correcting submodule includes:
the signal characteristic frequency spectrum unit is used for acquiring a rear-stage elastic wave real-time signal when the rear-stage elastic wave signal does not reach saturation and a signal characteristic frequency spectrum of a corresponding front-stage elastic wave real-time signal;
and the signal band gain curve unit is used for obtaining a signal band gain curve according to the post-stage signal characteristic spectrum and the pre-stage signal characteristic spectrum.
10. The saturation signal characteristic correcting apparatus according to claim 7, wherein the correcting submodule includes: and the post-stage elastic wave real-time signal characteristic correction unit is used for obtaining corrected post-stage elastic wave real-time signal characteristics according to the characteristic frequency spectrum of the pre-stage elastic wave real-time signal and the signal frequency band gain curve when the post-stage elastic wave real-time signal is saturated.
11. The saturation signal characteristic correcting apparatus according to claim 10, wherein the post-stage elastic wave real-time signal characteristic correcting unit includes:
the frequency domain signal effective point number acquisition subunit is used for acquiring corresponding frequency domain signal effective points according to the length of the preceding-stage elastic wave real-time signal;
the correction coefficient subunit is used for determining the position of the signal frequency band gain curve corresponding to each effective point according to the effective point number and determining the correction coefficient of the signal frequency band gain curve;
and the correction coefficient curve subunit is used for determining a correction coefficient curve according to the effective point number and the corresponding correction coefficient.
12. The saturation signal characteristic correcting apparatus according to claim 11, wherein the post-stage elastic wave real-time signal characteristic correcting unit includes:
and the correction calculation subunit obtains the corrected real-time signal characteristics of the rear-stage elastic wave according to the characteristic frequency spectrum and the correction coefficient curve of the front-stage elastic wave signal.
13. An electronic device, characterized in that it comprises the saturation signal characteristic correcting apparatus according to any one of claims 7 to 12.
14. A readable storage medium, wherein a computer program is stored in the readable storage medium, the computer program comprising program instructions which, when executed by a processor of a computer signal collector, cause the processor to perform the method of any of claims 1-6.
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