CN113992299B - Ship noise spectrum modulation method and device - Google Patents
Ship noise spectrum modulation method and device Download PDFInfo
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- CN113992299B CN113992299B CN202111064601.5A CN202111064601A CN113992299B CN 113992299 B CN113992299 B CN 113992299B CN 202111064601 A CN202111064601 A CN 202111064601A CN 113992299 B CN113992299 B CN 113992299B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/40—Jamming having variable characteristics
- H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention provides a ship noise spectrum modulation method and device, wherein the method comprises the following steps: the noise signal acquired by a noise measuring instrument installed on the ship is received, wherein the noise signal comprises noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area; acquiring spectrum data of the noise signal; and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a ship noise spectrum modulation method and device.
Background
The concealment of the ship is critical, so that the noise of the ship is controlled so as not to be discovered by detection equipment such as enemy sonar and the like, and the method is the core of the ship design. Currently, the noise level of the ship is effectively reduced through the approaches of floating raft installation, pump spraying propulsion, hydrodynamic appearance design and the like.
However, due to the complex marine environment in which ships navigate, the operating conditions of ships tend to be diversified. Therefore, how to continuously ensure the concealment of the ship to a certain extent under the requirement of diversified operation conditions, particularly under the condition that the noise such as the starting and the power conversion of the ship is difficult to reduce, is a difficult problem to be solved at present.
Disclosure of Invention
The invention provides a ship noise spectrum modulation method and device, which are used for solving the defect of poor ship concealment in the prior art and achieving the purpose of enhancing the ship concealment.
The invention provides a ship noise spectrum modulation method, which comprises the following steps:
receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
acquiring spectrum data of the noise signal;
and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
The invention provides a ship noise spectrum modulation method, which further comprises the following steps:
collecting the navigation time of the ship in the target sea area;
and obtaining a standard frequency spectrum of the environmental noise of the target sea area in a target time period of the navigation time.
According to the ship noise spectrum modulation method provided by the invention, the standard spectrum of the target sea area environmental noise in the target time period of the navigation time is obtained, and the method comprises the following steps:
querying candidate spectrums of the target sea area environmental noise in an environmental noise spectrum library;
and selecting a standard spectrum corresponding to the navigation time from the candidate spectrums.
The invention provides a ship noise spectrum modulation method, which further comprises the following steps:
and controlling the noise jammer to transmit a noise signal based on the transmission parameter corresponding to the spectrum data under the condition that the spectrum data is matched with the standard spectrum.
The invention provides a ship noise spectrum modulation method, which further comprises the following steps:
and sending an alarm signal when the spectrum data does not match the standard spectrum.
The invention also provides a ship noise spectrum modulation device, which comprises:
the receiving module is used for receiving noise signals collected by a noise measuring instrument arranged on the ship, wherein the noise signals comprise noise emitted by the ship and noise emitted by a noise interference device arranged on the ship in a target sea area;
the first acquisition module acquires the frequency spectrum data of the noise signal;
and the adjusting module is used for adjusting the emission parameters of the noise jammer according to the standard frequency spectrum under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area until the frequency spectrum data is matched with the standard frequency spectrum.
According to the invention, the ship noise spectrum modulation device further comprises:
the acquisition module is used for acquiring the navigation time of the ship in the target sea area;
and the second acquisition module acquires a standard frequency spectrum of the target sea area environmental noise corresponding to the navigation time.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of any of the above-mentioned ship noise spectrum modulation methods when executing the program.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the ship noise spectrum modulation method as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements the steps of the ship noise spectrum modulation method as described in any one of the above.
According to the ship noise spectrum modulation method and device, the noise signals collected by the noise measuring instrument arranged on the ship are received, and the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by the noise interference device arranged on the ship in the target sea area; acquiring spectrum data of the noise signal; and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
According to the technical scheme, the emission parameters of the noise interference device are adjusted, so that the spectrum data of the noise emitted by the noise interference device is matched with the standard spectrum, the characteristic spectrum of the ship operation is concealed to a certain extent, and the concealment of the ship can be effectively improved. Moreover, the scheme can realize that the concealment of the ship under various navigation environments can be actively provided.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a ship noise spectrum modulation method provided by the invention;
FIG. 2 is a second flow chart of the method for modulating the spectrum of the ship noise according to the present invention;
FIG. 3 is a third flow chart of the method for modulating the spectrum of the ship noise according to the present invention;
FIG. 4 is a flow chart of a ship noise spectrum modulation method provided by the invention;
FIG. 5 is a schematic structural diagram of a ship noise spectrum modulation device provided by the invention;
FIG. 6 is a second schematic diagram of a ship noise spectrum modulation device according to the present invention;
FIG. 7 is a third schematic structural diagram of the ship noise spectrum modulation device provided by the invention;
FIG. 8 is a schematic diagram of a ship noise spectrum modulation device according to the present invention;
fig. 9 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The ship noise spectrum modulation method of the present invention is described below with reference to fig. 1 to 4, and the implementation subject of the method is a ship noise spectrum modulation system or a control module for operating the ship noise spectrum modulation system, or may be a server for installing the control module, such as a data processing server disposed in the ship body, which is not limited herein.
Referring to fig. 1, the noise spectrum modulation method provided by the embodiment of the invention includes the following steps:
step 110: receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
step 120: acquiring spectrum data of the noise signal;
step 130: and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
In practical application, the noise measuring instrument is towed at the tail of the ship, and a noise interference device is arranged near the ship body. The noise interference device is one of the common underwater acoustic countermeasure equipment, and has the functions of emitting random noise with a certain frequency band when the ship encounters sonar detection and tracking, improving the noise level of the sonar input end, and shielding the ship from evading maneuver by reducing the signal-to-noise ratio to interfere the normal work of the ship.
The noise measuring instrument disclosed by the embodiment of the invention is used for collecting the interference noise signals emitted by the noise jammer in real time.
According to the technical scheme provided by the embodiment of the invention, the emission parameters of the noise interference device are adjusted, so that the spectrum data of the noise emitted by the noise interference device is matched with the standard spectrum, the characteristic spectrum of the ship operation is concealed to a certain extent, and the concealment of the ship can be effectively improved. Moreover, the scheme can realize that the concealment of the ship under various navigation environments can be actively provided.
Referring to fig. 2, the ship noise spectrum modulation method provided by the alternative embodiment of the invention includes the following steps:
step 210: receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
step 220: acquiring spectrum data of the noise signal;
step 230: collecting the navigation time of the ship in the target sea area;
step 240: acquiring a standard frequency spectrum of the environmental noise of the target sea area in a target time period of the navigation time;
step 250: and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
The timing between steps 230 and 240 and steps 210 and 220 is not limited by fig. 2.
Therefore, even for the same target sea area, the environmental noise in different time periods can be different, and the embodiment can realize more accurate adjustment of the emission parameters by collecting the navigation time in real time, thereby enhancing the navigation concealment of the ship.
In the embodiment of the present invention, referring to fig. 3, the following steps are adopted to obtain a standard spectrum of the environmental noise of the target sea area in the target time period where the voyage time is located:
step 310: querying candidate spectrums of the target sea area environmental noise in an environmental noise spectrum library;
step 320: and selecting a standard spectrum corresponding to the navigation time from the candidate spectrums.
In this embodiment, the environmental noise spectrum library stores the spectrum data of environmental noise in different sea areas, and further stores the spectrum data of environmental noise in different time periods for the same sea area.
Wherein, the environmental noise spectrum library is constructed in advance.
In particular, in k sea areas operating on a ship, in a plurality of [ t ] a ,t b ]Time period, time sequence signal V for continuously monitoring environmental noise by using noise measuring instrument of experimental ship 1 (t)、V 2 (t)...V k (t). Based on MATLAB, labVIEW or Origin and other software, the three time sequence signals are respectively subjected to spectrum analysis, and the specific process is as follows:
first, a certain period of time t a ,t b ]Timing sequence signal V collected by noise measuring instrument 1 (t)、V 2 (t)...V k (t) each has m data, respectively:
V 1 (m)＝[V 11 (t a )、V 12 (t a )、…V 1m (t b )]；
V 2 (m)＝[V 21 (t a )、V 22 (t a )、…V 2m (t b )]；
…
V k (m)＝[V k1 (t a )、V k2 (t a )、…V km (t b )]；
time sequence signal V collected by environment noise measuring instrument in each sea area 1 (t)、V 2 (t)...V k (t) carrying out spectrum analysis based on MATLAB, labVIEW or Origin and other software, equally dividing the frequency domain into (p-1) parts, and forming environmental noise of each sea area in a time period [ t ] a ,t b ]Is a power spectrum of (2):
X 1 (t a ～t b )＝[X 1 (f 1 )、X 1 (f 2 )、…X 1 (f p )]；
X 2 (t a ～t b )＝[X 2 (f 1 )、X 2 (f 2 )、…X 2 (f p )]；
…
X k (t a ～t b )＝[X k (f 1 )、X k (f 2 )、…X k (f p )]。
wherein, the liquid crystal display device comprises a liquid crystal display device,
second, for each [ t ] a ,t b ]The analysis is carried out in a time period to obtain a series of [ t ] of environmental noise of each sea area a ,t b ]The frequency spectrum in the time period is respectively subjected to averaging treatment to obtain standard frequency spectrums X 'of k sea area environmental noises' 1 (t a ～t b )、X′ 2 (t a ～t b )…X′ k (t a ～t b ). Wherein, the liquid crystal display device comprises a liquid crystal display device,
X′ 1 (t a ～t b )＝[X′ 1 (f 1 )、X′ 1 (f 2 )、…X′ 1 (f p )]；
X′ 2 (t a ～t b )＝[X′ 2 (f 1 )、X′ 2 (f 2 )、…X′ 2 (f p )]；
...
X′ k (t a ～t b )＝[X′ k (f 1 )、X′ k (f 2 )、…X′ k (f p )]。
and finally, inputting k sea area environmental noise standard frequency spectrums of the ship operation into a database to form an environmental noise standard frequency spectrum library of the ship.
In the embodiment of the invention, the emission parameters of the noise jammer are adjusted in the following manner.
When the ship sails in a certain sea area, the noise measuring instrument measures the received noise signals in real time and transmits the noise signals to the data processing server, noise spectrum analysis is carried out on the data processing server, and correlation comparison is carried out between the noise signals and the standard spectrum of the environmental noise of the running sea area, namely, the noise signals are matched correspondingly.
If the correlation degree does not reach a certain level, the emission parameters of the noise interference device are regulated, the detection noise frequency spectrum of the noise measuring instrument is continuously detected and analyzed, and is subjected to correlation comparison again with the standard frequency spectrum of the environmental noise in the running sea area, and the process is circulated until the correlation degree of the detection noise frequency spectrum and the standard frequency spectrum reaches a certain level, and the detection noise frequency spectrum corresponds to the matching. The specific process is as follows:
first, when a ship is sailing in a sea area, its noise measuring instrument measures the received noise timing signal S (t 1 ) And continuously calculating [ t ] according to the steps of constructing the environmental noise spectrum library a ,t b ]The spectrum Y (t) of the noise signal measured by the noise meter over a period of time a ～t b ) Wherein:
Y(t a ～t b )＝[Y(f 1 )、Y(f 2 )、…Y(f p )]。
secondly, based on MATLAB, labVIEW or Origin and other software, the noise measuring instrument measures [ t ] in real time a ,t b ]Noise signal spectrum Y (t) a ～t b ) Environmental noise standard spectrum X 'of navigation sea area where ship is located' n (t a ～t b ) Correlation analysis is performed, and a correlation coefficient η (t a ～t b )：
Wherein, the liquid crystal display device comprises a liquid crystal display device,is [ Y (f) 1 )、Y(f 2 )、…Y(f p )]Average value of>Is [ X ]' n (f 1 )、X′ n (f 2 )、…X′ n (f p )]N is a positive integer, and n is 1.ltoreq.n.ltoreq.k.
Finally, if the correlation coefficient η (t a ～t b ) Reaching a certain level (not less than 90%), the noise jammer does not need to be started or adjusted. If the correlation coefficient eta (t a ～t b ) Cannot reach a certain level<90%), the transmission parameters of the noise jammer are adjusted.
The noise jammer generally transmits random noise with a certain frequency range, takes the frequency range and the noise intensity as adjustable transmission parameters, and is divided into a plurality of stages in average in the adjustable range, and the stages are sequentially selected from small to large.
And simultaneously, continuously detecting and analyzing the detected noise spectrum of the noise measuring instrument according to the two links, and performing correlation comparison again between the detected noise spectrum and the standard spectrum of the environmental noise of the ship operation sea area, so that the frequency range and the noise intensity of the noise interference device are adjusted until the correlation degree of the frequency range and the noise intensity reaches a certain level (more than or equal to 90%).
In the embodiment of the invention, the command decision can be assisted according to the correlation between the adjusted spectrum data and the environmental noise standard spectrum of the sailing sea area where the ship is located.
If the noise signal spectrum measured by the noise measuring instrument in real time and the environmental noise standard spectrum of the navigation sea area where the ship is located can reach a certain level (more than or equal to 90 percent) by adjusting the noise interference device in a period of time, the noise spectrum of the periphery of the ship under the navigation working condition is very similar to the environmental noise spectrum of the sea area, and the concealment and environmental adaptability of the ship can be improved.
In this case, in the case where the adjusted spectrum data matches the standard spectrum, the noise jammer is controlled to transmit a noise signal based on the transmission parameter corresponding to the spectrum data.
Even if the noise signal spectrum measured by the noise measuring instrument in real time and the environmental noise standard spectrum of the navigation sea area where the ship is located can not reach a certain level (< 90%) by adjusting the noise interference device in a period of time, the concealment and environmental adaptability of the ship can be improved to a certain extent, and meanwhile, an alarm signal is sent to the coxswain to remind the coxswain to change the navigation mode as soon as possible or drive out of the sea area as soon as possible, so that the auxiliary decision making function is played.
In this case, referring to fig. 4, an alternative embodiment of the present invention provides a ship noise spectrum modulation method comprising the steps of:
step 410: receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
step 420: acquiring spectrum data of the noise signal;
step 430: judging whether the frequency spectrum data is matched with a standard frequency spectrum of the environmental noise of the target sea area;
step 440: if yes, namely under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum;
step 450: and if not, sending an alarm signal under the condition that the frequency spectrum data is not matched with the standard frequency spectrum.
The ship noise spectrum modulation device provided by the invention is described below, and the ship noise spectrum modulation device described below and the ship noise spectrum modulation method described above can be correspondingly referred to each other.
Referring to fig. 5, a ship noise spectrum modulation device provided by an embodiment of the present invention includes:
a receiving module 510 for receiving a noise signal collected by a noise measuring instrument installed on the ship, wherein the noise signal includes noise emitted by the ship itself sailing in a target sea area and noise emitted by a noise jammer installed on the ship in the target sea area;
a first acquisition module 520, configured to acquire spectrum data of the noise signal;
and an adjustment module 530, configured to adjust the emission parameters of the noise jammer according to the standard spectrum when the spectrum data does not match the standard spectrum of the environmental noise in the target sea area, until the spectrum data matches the standard spectrum.
In the ship noise spectrum modulation device provided by the embodiment of the invention, the emission parameters of the noise interference device are adjusted, so that the spectrum data of the noise emitted by the noise interference device is matched with the standard spectrum, the characteristic spectrum of the ship operation is concealed to a certain extent, and the concealment of the ship can be effectively improved. Moreover, the scheme can realize that the concealment of the ship under various navigation environments can be actively provided.
Optionally, referring to fig. 6, compared to fig. 5, the present apparatus further includes:
the collection module 610 is used for collecting the navigation time of the ship in the target sea area;
a second obtaining module 620 obtains a standard spectrum of the target sea area environmental noise corresponding to the navigation time.
Optionally, the second obtaining module 620 is specifically configured to:
querying candidate spectrums of the target sea area environmental noise in an environmental noise spectrum library;
and selecting a standard spectrum corresponding to the navigation time from the candidate spectrums.
Optionally, referring to fig. 7, compared to fig. 5, the present apparatus further includes:
and the control module 710 controls the noise jammer to transmit a noise signal based on the transmission parameter corresponding to the spectrum data when the spectrum data is matched with the standard spectrum.
Optionally, referring to fig. 8, compared to fig. 5, the present apparatus further includes:
and a transmitting module 810 for transmitting an alarm signal when the spectrum data does not match the standard spectrum.
Fig. 9 illustrates a physical schematic diagram of an electronic device, as shown in fig. 9, which may include: processor 910, communication interface (Communications Interface), memory 930, and communication bus 940, wherein processor 910, communication interface 920, and memory 930 communicate with each other via communication bus 940. Processor 910 may invoke logic instructions in memory 930 to perform a ship noise spectrum modulation method comprising:
receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
acquiring spectrum data of the noise signal;
and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
Further, the logic instructions in the memory 930 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, the computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the method of modulating ship noise spectrum provided by the above methods, the method comprising:
receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
acquiring spectrum data of the noise signal;
and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method of modulating ship noise spectrum provided by the above methods, the method comprising:
receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
acquiring spectrum data of the noise signal;
and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for modulating the spectrum of ship noise, comprising the steps of:
receiving noise signals collected by a noise measuring instrument installed on the ship, wherein the noise signals comprise noise emitted by the ship sailing in a target sea area and noise emitted by a noise interference device installed on the ship in the target sea area;
acquiring spectrum data of the noise signal;
and under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area, adjusting the emission parameters of the noise jammer according to the standard frequency spectrum until the frequency spectrum data is matched with the standard frequency spectrum.
2. The ship noise spectrum modulation method of claim 1, further comprising:
collecting the navigation time of the ship in the target sea area;
and obtaining a standard frequency spectrum of the environmental noise of the target sea area in a target time period of the navigation time.
3. The ship noise spectrum modulation method according to claim 2, wherein the obtaining the standard spectrum of the target sea area environmental noise in the target time period where the voyage time is located includes:
querying candidate spectrums of the target sea area environmental noise in an environmental noise spectrum library;
and selecting a standard spectrum corresponding to the navigation time from the candidate spectrums.
4. The ship noise spectrum modulation method of claim 1, further comprising:
and controlling the noise jammer to transmit a noise signal based on the transmission parameter corresponding to the spectrum data under the condition that the spectrum data is matched with the standard spectrum.
5. The ship noise spectrum modulation method of claim 1, further comprising:
and sending an alarm signal under the condition that the frequency spectrum data is not matched with the standard frequency spectrum.
6. A ship noise spectrum modulation device, comprising:
the receiving module is used for receiving noise signals collected by a noise measuring instrument arranged on the ship, wherein the noise signals comprise noise emitted by the ship and noise emitted by a noise interference device arranged on the ship in a target sea area;
the first acquisition module acquires the frequency spectrum data of the noise signal;
and the adjusting module is used for adjusting the emission parameters of the noise jammer according to the standard frequency spectrum under the condition that the frequency spectrum data is not matched with the standard frequency spectrum of the environmental noise in the target sea area until the frequency spectrum data is matched with the standard frequency spectrum.
7. The ship noise spectrum modulation device of claim 6, further comprising:
the acquisition module is used for acquiring the navigation time of the ship in the target sea area;
and the second acquisition module acquires a standard frequency spectrum of the target sea area environmental noise corresponding to the navigation time.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the ship noise spectrum modulation method according to any one of claims 1 to 5 when the program is executed.
9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the ship noise spectrum modulation method according to any of claims 1 to 5.
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