CN114629565A - Underwater maneuvering platform photoacoustic interconnection efficiency enhanced bidirectional communication method - Google Patents

Abstract

The invention discloses a method for enhancing two-way communication of photoacoustic interconnection efficiency of underwater mobile platforms, which integrates a laser-induced acoustic communication module, an underwater acoustic communication module and a hydrophone/array module by a tight coupling function and improves the effectiveness and maneuverability of a two-way communication system between the underwater mobile platforms by means of dual-carrier homologous information cascade transmission, photoacoustic carrier intermodulation, mutual check and the like. The invention closely combines the advantages of long underwater transmission distance, random access, flexible and controllable endogenous attributes of an underwater acoustic communication system and small volume, light weight and simple and easy communication operation of laser sounding and laser sounding equipment; the operability and the maneuverability of the long-distance underwater sound communication system are enhanced through the transmission and the reception of information of light-induced sound and sound-to-electricity, the communication reliability is improved through the mutual verification of double physical field information, and a brand-new solution is provided for the efficiency enhanced two-way communication of the underwater maneuvering platform.

Description

Underwater maneuvering platform photoacoustic interconnection efficiency enhanced bidirectional communication method

Technical Field

The invention belongs to the subject fields of underwater acoustic communication, laser induced acoustic communication, hydrophones and the like, and particularly relates to a wireless communication method for enhancing system efficiency by using laser excitation water body of underwater communication to generate sound waves and performing two-way information transmission between underwater mobile platforms through the sound waves, in particular to a method, a system and a storage medium for enhancing the two-way communication of the underwater mobile platforms by using the photoacoustic interconnection efficiency.

Background

The underwater communication has very important significance for underwater detection work. Acoustic communication is the only effective and mature means of underwater remote wireless information transmission. The sound wave is a main carrier of information in water and is widely applied to the fields of underwater communication, sensing, detection, navigation, positioning and the like. The sound wave belongs to mechanical waves, the signal attenuation of underwater transmission is reduced, the transmission distance is long, the application range can be extended from hundreds of meters to dozens of kilometers, and the underwater communication device is suitable for deep water communication with stable temperature. Heretofore, underwater acoustic communication is still the only effective and mature important means for cooperative communication of various underwater maneuvering platforms. However, waves, fish, ships, etc. in the ocean generate noise, which greatly disturbs the sound field in the ocean, and the received signals are blurred due to the difficulty of generating "multipath interference signals" when the sound waves are transmitted in the sea. In order to effectively solve the influence caused by multipath propagation, the following two strategies are generally adopted: the signals are specially designed and processed to suppress multipath interference, and the other type is to use a well-directed transmitter and receiver array, i.e., a towed sonar. In order to ensure the reliability of ultra-long-distance sonar communication between underwater mobile platforms, an array-type large towed support sonar (or a ship shell sonar) is generally adopted to transmit a communication signal, a towed linear array sonar receives a signal transmitted by the other communication sonar, and the towed linear array sonar and the towed support sonar cooperate to improve the reliability of the system. However, both communication parties need a durable and stable underwater acoustic transmission channel, and besides the requirement of installing and receiving two sets of towed sonar arrays, the underwater acoustic transmission channel also puts strict requirements on the array type, arrangement and orientation performance of the towed sonar arrays, and the underwater acoustic communication application range is limited by the characteristic.

On the other hand, with the continuous development of high-power laser technology, the radiation sound production of the light source draws people's attention. Compared with the existing common underwater sound source, the laser sound source has remote control (the system does not need to wet the end), can randomly change the size and the shape of the light sound source and change the sound production frequency band, and can ensure that the sound source moves at any speed (subsonic speed, transonic speed or supersonic speed) in a sound transmission medium without causing the streaming of the traditional sound source. The sound source level approximation of the sound pulse excited by the laser on the water surface is in direct proportion to the energy density of the laser, the peak value of the sound pulse received in the direction vertical to the propagation direction of the laser is the largest, the width of the sound pulse is the smallest, and the peak value of the sound pulse received in the propagation direction of the laser is the smallest, and the width of the sound pulse is the largest.

Disclosure of Invention

Based on the problems in the prior art, the technical problem to be solved by the invention is how to integrate the tight coupling function of the information laser emission channel, the laser acoustic communication module and the underwater acoustic receiving channel.

Aiming at the defects in the prior art, the invention aims to provide a photoacoustic interconnection efficiency enhanced two-way communication method for an underwater mobile platform, which integrates the tight coupling function of an information laser emission channel, a laser acoustic communication module and an underwater acoustic receiving channel; the information laser emission channel is used for transmitting the information to be transmitted to the encoder, and the encoder converts the information into a digital baseband signal and transmits the digital baseband signal to the modem; the modulator-demodulator is used for modulating the baseband signal and outputting a band-pass signal, demodulating the received band-pass signal and outputting the baseband signal, and meanwhile, the modulator-demodulator is used for sending synchronous clock pulses by the transmitting channel, the receiving channel and the laser-induced acoustic module; the transmitting channel is used for transmitting the band-pass signal output by the modem to the laser sounding module; and the laser sounding module is used for exciting the band-pass signal output by the emission channel to the laser source to generate a high-energy laser pulse signal, and the laser pulse signal acts on a water body to form a rapidly-expanded plasma cavity so as to excite a surrounding medium to form sound waves. And the underwater sound receiving channel is used for converting the received underwater sound signals into band-pass electric signals through the hydrophone/array and then sequentially outputting the band-pass electric signals to the modem and the decoder, so that the whole underwater sound communication process is completed, and a stable opto-acoustic cascade bidirectional communication link between the underwater mobile platforms is established. In the communication process, the two-way communication efficiency between the underwater mobile platforms is enhanced by means of photoacoustic double-carrier homologous information cascade transmission, photoacoustic carrier mutual check and the like.

In order to achieve the effect, the underwater mobile platform photoacoustic interconnection efficiency enhancing bidirectional communication method provided by the invention is executed by an underwater platform, the underwater platform comprises an underwater array, an underwater acoustic communication module, a laser information transmitting channel, a transmitting end and a receiving end, information to be transmitted is converted into an electric signal at the transmitting end through the laser information transmitting channel, a laser light source is stimulated to transmit a laser carrier, a signal beam is emitted to stimulate a water body to generate a sonar carrier signal, the acoustic signal is received, bidirectional information transmission between the underwater mobile platforms is completed, the laser acoustic communication module stimulates the acoustic signal based on the laser carrier water body, and the underwater array receives the acoustic signal to establish a bidirectional communication link between the underwater mobile platforms.

Preferably, the method specifically comprises:

s101, initiating a communication request by an underwater platform according to needs, and establishing an underwater acoustic communication link based on laser induced sound;

s102, searching and tracking corresponding underwater acoustic signals by a receiving end according to needs;

s103, the two communication parties complete the information reception by demodulating and decoding the received signals, and select whether to answer the signals of the other party according to specific conditions to complete the establishment and maintenance of the bidirectional communication link;

s104, for the sound source signal of laser induced sound, aiming at the channel characteristics, changing the repetition frequency, the pulse width and other parameters of an excitation light source to obtain sound source signals with different wavelengths and different frequencies, and effectively inhibiting multipath interference;

and S105, for the two-way communication mode, when the information transmission is different, a retransmission request is executed, and error correction is negotiated.

Preferably, in the above method, the first stage of the information transmission carrier for laser-induced acoustic communication is laser, the laser is incident on the water surface and breaks down the water surface to form sonar signals, and at this time, the second stage of the information transmission carrier is sonar.

Preferably, the underwater acoustic communication module completes connection of the photoacoustic combined communication link by transmitting and receiving sonar signals.

Preferably, the underwater acoustic array realizes mutual connection of the received underwater acoustic mechanical vibration through a physical effect, completes conversion from kinetic energy to electric energy, and finally completes information receiving.

Preferably, the method realizes point-to-point bidirectional communication, any underwater platform can be used as a communication initiator, and the communication two parties can keep a reliable photoacoustic cascade bidirectional communication link for a long time according to needs.

Preferably, the method realizes point-to-multipoint broadcast communication, one underwater mobile platform serves as a communication initiator, a broadcast information transmission mode is adopted to initiate communication and establish a laser acoustic communication link, and other underwater mobile platforms receive and demodulate acoustic signals as required and select whether to answer or not according to actual conditions.

Preferably, the method realizes point-to-multipoint wireless bridging communication, meets the networking requirement of underwater wireless communication, completes the reception of laser acoustic communication signals by taking an underwater platform as a central point, completes the wireless bridging among the point-to-multipoint underwater platforms and realizes the network sharing among a plurality of underwater mobile platforms; aiming at different service requirements among underwater platforms, a point-to-multipoint wireless bridging mode based on an underwater acoustic link is provided, and distributed underwater wireless communication networking is realized.

The system for realizing the photoacoustic interconnection efficiency enhanced two-way communication method of the underwater mobile platform comprises an underwater platform, wherein the underwater platform comprises a hydrophone array module, an underwater acoustic communication module, a laser information transmitting channel, a transmitting end module and a receiving end module, and further comprises:

the signal conversion module is used for converting information to be sent into an electric signal at a sending end through a laser information sending channel and exciting a laser light source to send and send laser carrier waves;

the carrier signal generation module is used for emitting signal beams to excite a water body to generate sonar carrier signals and receiving acoustic signals;

the information transmission module is used for completing bidirectional information transmission between the underwater mobile platforms;

the laser acoustic communication module excites acoustic signals based on a laser carrier water body, and the hydrophone array receives the acoustic signals to establish a bidirectional communication link between the underwater platforms.

A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the above-mentioned method.

A computer program product comprising computer programs/instructions which, when executed by a processor, implement the steps of the above-described method.

Compared with the prior art, the invention closely combines the advantages of long underwater transmission distance, random access, flexible and controllable endogenous attributes of the underwater acoustic communication system and small volume, light weight and simple and easy communication operation of the laser-to-sound and laser sound measuring equipment; the operability and the maneuverability of the long-distance underwater sound communication system are enhanced through the transmission and the reception of information of light-induced sound and sound-to-electricity, the communication reliability is improved through the mutual verification of double physical field information, and a brand-new solution is provided for the efficiency enhanced two-way communication of the underwater maneuvering platform.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating the working principle of photoacoustic efficiency enhanced two-way communication of a shore-based fixed platform and an underwater mobile platform according to the present invention;

fig. 2 shows a typical application mode schematic diagram of the underwater mobile platform photoacoustic interconnection bidirectional communication.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The invention provides an embodiment of a photoacoustic interconnection efficiency enhancing two-way communication method of an underwater mobile platform, which is executed by the underwater platform, wherein the underwater platform comprises an underwater array, an underwater acoustic communication module, a laser information transmitting channel, a transmitting end and a receiving end, information to be transmitted is converted into an electric signal at the transmitting end through the laser information transmitting channel, a laser light source is stimulated to transmit a laser carrier, a signal beam is emitted to stimulate a water body to generate a sonar carrier signal, the acoustic signal is received, and two-way information transmission between the underwater mobile platforms is completed, the laser acoustic communication module stimulates the acoustic signal based on the laser carrier water body, and the underwater array receives the acoustic signal to establish a two-way communication link between the underwater mobile platforms.

In some embodiments, the method specifically comprises:

s101, initiating a communication request by an underwater platform according to needs, and establishing an underwater acoustic communication link based on laser induced sound;

s102, searching and tracking corresponding underwater acoustic signals by a receiving end according to needs;

s103, the two communication parties complete the information reception by demodulating and decoding the received signals, and select whether to answer the signals of the other party according to specific conditions to complete the establishment and maintenance of the bidirectional communication link;

s104, for the sound source signal of laser induced sound, aiming at the channel characteristics, changing the repetition frequency, the pulse width and other parameters of an excitation light source to obtain sound source signals with different wavelengths and different frequencies, and effectively inhibiting multipath interference;

and S105, for the two-way communication mode, when the information transmission is different, a retransmission request and error correction negotiation are carried out.

In some embodiments, the first stage of the information transmission carrier of laser-induced acoustic communication in the method is laser, the laser is incident on the water surface and breaks down the water surface to form sonar signals, and the second stage of the information transmission carrier is sonar.

In some embodiments, the underwater acoustic communication module completes the connection of the photoacoustic combined communication link by transmitting and receiving sonar signals.

In some embodiments, the hydrophone array interconnects the received mechanical vibration of the underwater acoustics through a physical effect, so that conversion from kinetic energy to electric energy is completed, and finally information is received.

In some embodiments, point-to-point bidirectional communication is realized, any underwater platform can be used as a communication initiator, and the communication two parties can maintain a reliable photoacoustic cascade bidirectional communication link for a long time as required.

In some embodiments, point-to-multipoint broadcast communication is realized, one underwater mobile platform serves as a communication initiator, a broadcast information transmission mode is adopted to initiate communication and establish a laser acoustic communication link, and other underwater mobile platforms receive and demodulate acoustic signals as required and select whether to answer or not according to actual conditions.

In some embodiments, point-to-multipoint wireless bridging communication is realized, underwater wireless communication networking requirements are met, an underwater platform is used as a central point to receive laser acoustic communication signals, wireless bridging among the point-to-multipoint underwater platforms is completed, and network sharing among a plurality of underwater mobile platforms is realized; aiming at different service requirements among underwater platforms, a point-to-multipoint wireless bridging mode based on an underwater acoustic link is provided, and distributed underwater wireless communication networking is realized.

The invention provides a system for realizing a photoacoustic interconnection efficiency enhanced two-way communication method of an underwater mobile platform, which is executed by the underwater platform, wherein the underwater platform comprises a hydrophone array module, an underwater acoustic communication module, a laser information transmitting channel, a transmitting end module and a receiving end module, and the system also comprises:

the signal conversion module is used for converting information to be sent into an electric signal at a sending end through a laser information sending channel and exciting a laser light source to send and send laser carrier waves;

the carrier signal generation module is used for emitting signal beams to excite a water body to generate sonar carrier signals and receiving acoustic signals;

the information transmission module is used for completing bidirectional information transmission between the underwater mobile platforms;

the laser acoustic communication module excites acoustic signals based on a laser carrier water body, and the hydrophone array receives the acoustic signals to establish a bidirectional communication link between the underwater platforms.

As shown in fig. 1, the present invention provides an embodiment of bidirectional communication between underwater mobile platforms with enhanced photoacoustic performance, where two communication parties respectively include a laser information transmitting channel, a laser acoustic communication module, and a hydrophone/array module. The laser acoustic communication module excites acoustic signals based on the laser carrier water body, and the hydrophone/array module receives the acoustic signals to establish a bidirectional communication link between the underwater platforms.

In some embodiments, the present invention includes, but is not limited to, three exemplary modes of operation:

1. point-to-point two-way communication mode: any underwater platform can be used as an initiator of communication, reliable photoacoustic cascade bidirectional communication links can be maintained for a long time as required by two communication parties, the problems that a traditional underwater acoustic communication terminal drags a sonar to be large in size, a dragged array is difficult to receive and release, and the array is difficult to maintain are solved through laser induced acoustic communication and underwater acoustic reception, and the efficiency of a non-relay bidirectional communication system between underwater mobile platforms is improved.

2. Point-to-multipoint broadcast communication mode: one underwater mobile platform is used as a communication initiator, a broadcast type information transmission mode is adopted to initiate communication and establish a laser acoustic communication link, other underwater mobile platforms receive and demodulate acoustic signals according to needs and select whether to respond or not according to actual conditions, the effectiveness and reliability of information transmission between the underwater mobile platforms are improved by means of an underwater point-to-multipoint broadcast type information transmission mechanism, and the position information of the underwater platforms is guaranteed not to be intercepted.

3. Point-to-multipoint wireless bridging communication mode: the underwater wireless communication networking demand is met, the receiving of laser acoustic communication signals is completed by taking one underwater platform as a central point, wireless bridging between point-to-multipoint underwater platforms is completed, and network sharing among a plurality of underwater mobile platforms is achieved. Aiming at different service requirements among underwater platforms, a point-to-multipoint wireless bridging mode based on underwater acoustic links is provided, distributed underwater wireless communication networking is achieved, the efficiency and the coverage range of a bidirectional communication system among underwater mobile platforms are improved, and high freedom and network flexibility are achieved.

As shown in fig. 2, the invention aims at the problem of short board in the specific application scenario of the existing underwater acoustic communication system, and provides a new idea for the wireless two-way communication system between the underwater mobile platforms with high mobility and enhanced efficiency. Fig. 2 shows a typical application mode of photoacoustic cascade two-way communication of an underwater mobile platform, wherein a and B represent different underwater mobile platforms, C and D represent fiber-optic hydrophone towing sonars, and curves represent underwater acoustic links.

The invention also provides an embodiment of the underwater mobile platform photoacoustic interconnection efficiency enhanced bidirectional communication method, which comprises the following steps:

s1, the underwater platform initiates a communication request as required and establishes an underwater acoustic communication link based on laser induced sound;

s2, the receiving end searches and tracks corresponding underwater acoustic signals according to the requirement;

s3, the two parties of communication finish the information receiving by demodulating and decoding the received signal, and select whether to answer the other party signal according to the specific situation, thereby finishing the establishment and maintenance of the bidirectional communication link.

S4, for the sound source signal of laser induced sound, the parameters of repetition frequency, pulse width, etc. of the excitation light source can be changed according to the channel characteristics to obtain the sound source signal with different wavelengths and different frequencies, thereby effectively inhibiting the multipath interference.

And S5, for the bidirectional communication mode, when the information transmission is different, steps such as retransmission request, negotiation error correction and the like can be executed, and the reliability and the stability of the bidirectional communication system are ensured.

The invention provides an embodiment of an opto-acoustic interconnection efficiency enhanced bidirectional communication method between underwater and underwater mobile platforms, which integrates a laser acoustic communication module, an underwater acoustic communication module and an underwater acoustic array in a tight coupling function and improves the maneuverability, reliability and safety of a bidirectional communication system between the water surface and the underwater mobile platforms by means of dual-carrier homologous information cascade transmission, opto-acoustic carrier intermodulation, mutual verification and the like.

In some embodiments, the first stage of the information transmission carrier in laser induced acoustic communication is laser, the laser is incident on the water surface (water body) and breaks through the water surface (or water body) to form a sonar signal, at this time, the second stage of the information transmission carrier is sonar, the typical system structure includes, but is not limited to, a laser, a signal source, a modulator, a frequency converter, an amplifier, an optical antenna, an optical lens, a mixer, a demodulator, a filter, and the like, the typical standardized application mode includes, but is not limited to, mobile communication, broadband wireless access, short-distance communication, and the like, the laser carrier frequency band, the sonar band, the bandwidth, the communication protocol, the reference standard, and the application platform are not limited.

In some embodiments, the information transmission carrier of the underwater acoustic communication module is sonar, the underwater acoustic communication module completes the connection of the photoacoustic joint communication link by transmitting and receiving sonar signals, and typical system structures include, but are not limited to, transducers, hydrophones, modulators, signal sources, filters, amplifiers, demodulators, fiber sensor systems, etc., without limitation of specific operating wavelengths, communication protocols, industry standards, and application platforms;

in some embodiments, the hydrophone array correlates the received mechanical vibrations of the underwater acoustics to one another through some physical effect to complete the conversion of kinetic energy to electrical energy and, ultimately, the reception of information. Typical system configurations include, but are not limited to, fiber optic hydrophones, piezoelectric hydrophones, acoustic pressure hydrophones, magnetostrictive hydrophones, couplers, sensing arms, reference arms, filters, amplifiers, sensor systems, and the like, without limitation of specific operating wavelengths, without limitation of structural types, without limitation of industry standards, without limitation of application platforms.

Compared with the prior art, the invention has the following advantages:

firstly, the invention provides a technical idea of realizing the bidirectional wireless communication of an underwater platform by using laser to puncture the sound caused by the water body and using the hydrophone to measure the sound, and the invention also has the characteristics of long underwater transmission distance, random access, flexible and controllable endogenous property of an underwater sound communication system and small volume, light weight and simple and easy communication operation of laser sound-caused equipment;

secondly, the working modes of point-to-point bidirectional communication, point-to-multipoint broadcast communication and point-to-multipoint wireless bridge communication provided by the invention can keep certain communication capability under special conditions of ultra-long distance, non-line-of-sight tracking, multi-user access and the like, and lays a solid foundation for the application of large-range wireless networking communication of the underwater mobile platform which is flexible and flexible;

in addition, the underwater mobile platform photoacoustic interconnection communication method can be compatible with the existing underwater acoustic communication module, can be directly interconnected with the existing underwater wireless sonar system, and can provide a solution for smooth upgrading of future underwater wireless networks.

For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. The utility model provides an underwater maneuvering platform optoacoustic interconnection efficiency reinforcing two-way communication method, is executed by the underwater platform, the underwater platform includes hydrophone array, underwater acoustic communication module, laser causes the acoustic communication module, laser information transmission passageway, transmitting terminal and receiving terminal, through laser information transmission passageway with plan the information conversion who sends at the transmitting terminal for the signal of telecommunication, and arouse laser light source and send laser carrier, the signal beam of transmission arouses the water and produces sonar carrier signal, receives acoustic signal, accomplishes two-way information transmission between the underwater maneuvering platform, laser causes the acoustic communication module to arouse acoustic signal based on laser carrier water, the hydrophone array receives acoustic signal and establishes two-way communication link between the underwater platform.

2. The underwater mobile platform photoacoustic interconnection effectiveness enhancing bidirectional communication method according to claim 1, wherein the method specifically comprises:

s101, initiating a communication request by an underwater platform according to needs, and establishing an underwater acoustic communication link based on laser induced sound;

s102, searching and tracking corresponding underwater acoustic signals by a receiving end according to needs;

s103, the two communication parties complete the information reception by demodulating and decoding the received signals, and select whether to answer the signals of the other party according to specific conditions to complete the establishment and maintenance of the bidirectional communication link;

s104, for the sound source signal of laser induced sound, aiming at the channel characteristics, changing the repetition frequency, the pulse width and other parameters of an excitation light source to obtain sound source signals with different wavelengths and different frequencies, and effectively inhibiting multipath interference;

and S105, for the two-way communication mode, when the information transmission is different, a retransmission request and error correction negotiation are carried out.

3. The underwater maneuvering platform photoacoustic interconnection efficiency enhancing bidirectional communication method according to claim 1, characterized in that in the method, a first stage of an information transmission carrier of laser-induced acoustic communication is laser, the laser is incident to a water surface and breaks down the water surface to form a sonar signal, and a second stage of the information transmission carrier is a sonar.

4. The underwater mobile platform photoacoustic interconnection efficiency enhancing bidirectional communication method according to claim 3, wherein the underwater acoustic communication module completes the connection of the photoacoustic combined communication link by transmitting and receiving sonar signals.

5. The underwater mobile platform photoacoustic interconnection effectiveness enhancing two-way communication method according to claim 1, wherein the underwater acoustic array is used for mutually connecting the received underwater acoustic mechanical vibration through a physical effect, completing the conversion from kinetic energy to electric energy, and finally completing the reception of information.

6. The underwater mobile platform photoacoustic interconnection effectiveness enhancing bidirectional communication method according to one of claims 1 to 5, wherein the method realizes point-to-point bidirectional communication, any underwater platform can be used as a communication initiator, and reliable photoacoustic cascade bidirectional communication links can be maintained by communication parties for a long time as required.

7. The underwater mobile platform photoacoustic interconnection efficiency enhancing two-way communication method according to one of claims 1 to 5, characterized in that the method realizes point-to-point communication, one underwater mobile platform serves as a communication initiator, a broadcast information transmission mode is adopted to initiate communication and establish a laser induced acoustic communication link, and other underwater mobile platforms receive and demodulate acoustic signals as required and select whether to answer or not according to actual conditions.

8. The underwater mobile platform photoacoustic interconnection efficiency enhancing bidirectional communication method according to one of claims 1 to 5, wherein the method realizes point-to-multipoint wireless bridge communication, meets the requirements of underwater wireless communication networking, completes the reception of laser induced acoustic communication signals by taking one underwater platform as a central point, completes the wireless bridge among the point-to-multipoint underwater platforms, and realizes the network sharing among a plurality of underwater mobile platforms; aiming at different service requirements among underwater platforms, a point-to-multipoint wireless bridging mode based on an underwater acoustic link is provided, and distributed underwater wireless communication networking is realized.

9. A system for implementing the underwater mobile platform photoacoustic interconnection efficiency enhancing two-way communication method of claims 1-8, comprising being performed by an underwater platform comprising a hydrophone array module, an underwater acoustic communication module, a laser-induced acoustic communication module, a laser information transmitting channel, a transmitting end module and a receiving end module, further comprising:

the signal conversion module is used for converting information to be sent into an electric signal at a sending end through a laser information sending channel and exciting a laser light source to send and send laser carrier waves;

the carrier signal generation module is used for emitting signal beams to excite a water body to generate sonar carrier signals and receiving acoustic signals;

the information transmission module is used for completing bidirectional information transmission between the underwater mobile platforms;

the laser acoustic communication module excites acoustic signals based on a laser carrier water body, and the hydrophone array receives the acoustic signals to establish a bidirectional communication link between the underwater platforms.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 8.

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