Sound field and communication task driven underwater acoustic link performance analysis and optimization method

Abstract

The invention relates to the technical field of underwater acoustic communication, and discloses a sound field and communication task driven underwater acoustic link performance analysis and optimization method, which realizes real-time monitoring and dynamic optimization of underwater acoustic communication link performance by integrating a communication state information simulation module and an ocean sound field simulation module. The system can monitor key indexes such as link bandwidth, delay, packet loss rate and the like and dynamically adjust a link use strategy according to a monitoring result so as to improve communication efficiency and reliability.

Description

Technical Field

[0001] The present invention relates to the field of underwater acoustic communication technology, and particularly to an underwater acoustic link performance analysis and optimization method driven by sound field and communication tasks. Background Art

[0002] In the field of underwater acoustic communication, the complexity and dynamic characteristics of the ocean environment have always been important factors restricting the performance of communication systems. Due to its fast-changing time, space, and frequency characteristics, the underwater acoustic channel is recognized as one of the most severe wireless channels in nature. Specifically, parameters such as the temperature, salinity, and depth of seawater directly affect the propagation speed and path of sound waves; problems such as multipath effect, Doppler effect, and strong noise interference further exacerbate the instability of the channel. In addition, as the propagation distance of sound waves increases, the absorption attenuation and bandwidth limitation of signals significantly reduce the transmission rate and reliability of the communication link. Especially in long-distance and dynamic scenarios, traditional fixed-configuration communication links are difficult to cope with sudden environmental changes, resulting in data transmission failures, increased delays, or rising packet loss rates.

[0003] Traditional underwater acoustic communication technologies mainly rely on fixed transmission parameter configurations, such as fixed modulation methods and power settings. When facing a complex dynamic environment, this design usually can only be designed for the worst channel conditions, resulting in resource waste and low communication efficiency. In addition, traditional systems usually lack the ability of real-time link performance monitoring and dynamic adjustment, and it is difficult to meet the diverse needs of communication tasks. Although in recent years, link adaptation technologies and intelligent optimization methods have been gradually applied to the field of underwater acoustic communication, existing methods are mostly limited to the optimization of single environmental factors, and have not achieved in-depth fusion analysis of communication tasks and sound field environment, and cannot comprehensively and dynamically improve the performance of underwater acoustic communication systems.

[0004] To solve the above problems, an underwater acoustic link performance analysis technology capable of real-time monitoring and dynamic optimization is needed, which can not only accurately capture the channel changes in complex environments, but also flexibly adjust communication strategies, thereby significantly improving the efficiency and reliability of underwater acoustic communication. Therefore, it is necessary to provide an underwater acoustic link performance analysis and optimization method driven by sound field and communication tasks. Summary of the Invention

[0005] The present invention provides an underwater acoustic link performance analysis and optimization method driven by sound field and communication tasks, aiming to address the problem that it is difficult to stably guarantee the performance of underwater acoustic communication links in complex ocean environments.

[0006] Traditional underwater acoustic communication links often lack flexible and efficient dynamic adaptation capabilities due to the dynamic characteristics of the ocean environment and the complexity of channel conditions, thus affecting communication efficiency and reliability. The technology of the present invention innovatively realizes the accurate analysis and dynamic optimization of the performance of underwater acoustic communication links by integrating a communication state information simulation module and an ocean acoustic field simulation module and combining multi-parameter fusion analysis technology.

[0007] In this technical framework, the communication state information simulation module is responsible for capturing and simulating the key state parameters of the underwater acoustic communication link in real time, including link bandwidth, delay, packet loss rate, etc. This module can not only timely reflect the change trend of link performance but also provide accurate basis for subsequent performance optimization decisions. The ocean acoustic field simulation module, with ocean parameters such as water temperature, salinity, and depth as the core, constructs a relationship model between acoustic wave propagation characteristics and environmental parameters. This module provides a reliable basis for link optimization by evaluating the acoustic wave propagation paths and characteristics under different environments.

[0008] At the information processing and decision-making level, the present invention comprehensively analyzes link performance by fusing communication state information and ocean acoustic field information, and identifies the main factors affecting link stability and efficiency. This multi-parameter fusion analysis method effectively makes up for the deficiencies of traditional single-factor analysis, significantly improving the system's response ability to complex environments. Based on the analysis results, the system can dynamically adjust communication strategies, including but not limited to optimizing transmission power, modulation mode, and routing path, etc., to adapt to environmental changes and communication requirements.

[0009] The present invention has significant practical value and application prospects. In cross-sea area communication tasks, by simulating the acoustic wave propagation path through acoustic field simulation and optimizing the routing strategy, the communication delay and data loss rate have been successfully reduced. In underwater detection tasks, by real-time monitoring the link state and promptly starting the error correction mechanism, the integrity and accuracy of data transmission have been ensured. In addition, the technology has also verified its stability and efficiency in experiments under various complex ocean environments, significantly improving the overall performance of the communication system.

[0010] An underwater acoustic link performance analysis and optimization method driven by acoustic field and communication tasks proposed by the present invention includes the following processes: S1. First, the working sea area determination module of the underwater mobile platform determines the working sea area of the underwater platform, providing ocean environmental parameters for acoustic field modeling; S2. Then, the ocean acoustic field simulation module constructs an acoustic field simulation model according to the ocean environmental parameters to simulate the acoustic wave propagation characteristics; S3. The communication model configuration management module initially sets the parameters of the underwater acoustic communication machine and dynamically adjusts the communication parameters according to the link state; S4. The submarine state information transceiver module determines the submarine as the source or destination and sends or receives data, including submarine state information; S5. The communication status information simulation module marks the communication status of underwater platforms on the nautical chart with different colors according to the submarine status information; S6. The communication link performance analysis software comprehensively analyzes the link performance based on communication parameters, the acoustic field simulation model, and the communication status, and generates an evaluation report; S7. The communication link usage suggestion module provides suggestions for optimizing the link configuration according to the evaluation report; S8. The communication model configuration management module adjusts the communication parameters according to the link status information optimization suggestions. After adjustment, the submarine status information transceiver module sends and receives data again. The communication status information simulation module marks the communication status again, and the communication link performance analysis software analyzes the link performance again and generates an evaluation report again; the communication link usage suggestion module provides link configuration optimization suggestions again, and so on in a loop; The whole process is a cyclic process. The system continuously monitors, analyzes, adjusts, and optimizes the communication link performance to cope with the dynamic changes in the ocean environment.

[0011] Among them, the specific working processes of each module are as follows: (1) Communication model configuration management module: Initially set the parameters of the underwater acoustic communication machine, and subsequently, according to the link status information, the dynamic link configuration adjustment module optimizes and adjusts the communication parameters. The adjustment strategies include modifying the transmission power, selecting a better modulation method, switching the routing path, etc., to adapt to the changes in the current ocean environment and meet the mission requirements.

[0012] (2) Submarine status information transceiver module: According to the parameters of the underwater acoustic communication machine, elect to be the information source or the information sink, and send or receive information.

[0013] (3) Communication status information simulation module: According to the communication situation, use icons of different colors to mark the positions of underwater platforms on the nautical chart: If the communication is successful, use a green icon to mark the position of the underwater platform on the nautical chart. If the communication fails, use a red icon to mark the position of the underwater platform on the nautical chart.

[0014] (4) Underwater mobile platform working sea area determination module: Before acoustic field modeling, the system determines the actual working sea area of the underwater mobile platform or underwater equipment through the working area identification module. This module combines geographical information, mission requirements, and environmental data to ensure a high degree of matching between the simulation parameters and the actual environment.

[0015] (5) Ocean acoustic field simulation module: The system first constructs a simulation model of the ocean acoustic field through the acoustic field environment modeling module. This module accurately simulates the propagation characteristics of sound waves in the ocean according to the parameters of the ocean environment (such as water depth, water temperature, salinity) and the characteristics of the working sea area. This information provides important support for subsequent communication link performance evaluation.

[0016] (6) Communication link performance analysis software: The system uses this software to comprehensively analyze the operating status of the communication link in a specific environment. The evaluation content includes key performance indicators such as the bandwidth utilization rate, delay characteristics, signal attenuation, and data packet loss rate of the link, and generates a detailed evaluation report.

[0017] (7) Communication link usage suggestion module: After the performance evaluation is completed, this module extracts key performance data and generates summary information including the current link status and performance parameters. These data will serve as an important basis for optimizing the link configuration so that the operator can adjust the parameters.

[0018] Compared with related technologies, the underwater acoustic link performance analysis and optimization method driven by sound field and communication tasks provided by the present invention has the following beneficial effects: By comprehensively applying communication state information simulation, ocean sound field simulation, multi-parameter fusion analysis, and dynamic link optimization technologies, the present invention significantly improves the performance of the underwater acoustic communication system and has extremely high application value.

[0019] First of all, by real-time monitoring the link status and dynamically adjusting the communication strategy, the present invention can achieve efficient and stable data transmission in a complex ocean environment, significantly improving the communication rate and the frequency band utilization rate of the system. At the same time, based on the comprehensive analysis and optimization of the key factors of the link performance, the system can effectively reduce the packet loss rate and delay, ensuring the reliability of communication.

[0020] Secondly, the dynamic power control strategy of the present invention can reduce the transmission power as much as possible on the premise of meeting the communication requirements, extend the battery life of the device, and reduce the system operation cost.

[0021] In addition, through the sound field simulation module, the system can adapt to diverse ocean environments and complex scenarios, and can operate efficiently both in the static deep-sea environment and in the dynamic shallow-sea area, with extremely strong environmental adaptability.

[0022] Moreover, the present invention also supports applications in multiple scenarios such as cross-sea area communication, underwater detection, and disaster warning, especially showing strong practicality and innovation in underwater robot communication and military tasks.

[0023] Generally speaking, while improving the efficiency and reliability of underwater acoustic communication, the present invention significantly reduces resource consumption, providing important support for the development of future marine information communication technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a flowchart of an underwater acoustic link performance analysis and optimization method driven by sound field and communication tasks provided by the present invention; Figure 2This is a schematic diagram showing the geographical location of the underwater mobile platform on the imported real sea chart by the working sea area determination module of the present invention; Figure 3 This is the sound speed gradient map obtained by the ocean acoustic field simulation module of the present invention simulating the acoustic wave propagation characteristics; Figure 4 This is the propagation loss map obtained by the ocean acoustic field simulation module of the present invention simulating the acoustic wave propagation characteristics; Figure 5 This is a schematic diagram marked by the communication status information simulation module of the present invention for the position and status display of communication objects. Detailed implementation manners

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] The present invention integrates a communication status information simulation module and an ocean acoustic field simulation module, combines multi-parameter fusion analysis technology, fuses communication status information and ocean acoustic field information, comprehensively analyzes the link performance, identifies the main factors affecting the link stability and efficiency, and then realizes the accurate analysis and dynamic optimization of the underwater acoustic communication link performance.

[0027] Please refer to Figure 1 A method for analyzing and optimizing the underwater acoustic link performance driven by the acoustic field and communication tasks proposed by the present invention includes the following processes: S1. First, the working sea area determination module of the underwater mobile platform determines the working sea area of the underwater platform, providing ocean environment parameters for acoustic field modeling; S2. Then, the ocean acoustic field simulation module constructs an acoustic field simulation model according to the ocean environment parameters and simulates the acoustic wave propagation characteristics; S3. The communication model configuration management module initially sets the parameters of the underwater acoustic communication machine and dynamically adjusts the communication parameters according to the link status; S4. The submarine status information transceiver module determines the submarine as the source or destination of the signal and sends or receives data, including submarine status information; S5. The communication status information simulation module marks the communication status of the underwater platform on the sea chart with different colors according to the submarine status information; S6. The communication link performance analysis software comprehensively analyzes the link performance according to the communication parameters, acoustic field simulation model, and communication status, and generates an evaluation report; S7. The communication link usage suggestion module provides link configuration optimization suggestions according to the evaluation report; The communication model configuration management module adjusts the communication parameters according to the link status information optimization suggestions. After the adjustment, it transmits and receives data through the submarine status information transmission and reception module. The communication status information simulation module marks the communication status again, and the communication link performance analysis software analyzes the link performance again to generate an evaluation report again. The communication link usage suggestion module then provides link configuration optimization suggestions again, and this process repeats cyclically. The entire process is a cyclic one. The system continuously monitors, analyzes, adjusts, and optimizes the communication link performance to cope with the dynamic changes in the ocean environment.

[0028] Among them, the specific working processes of each module are as follows: (1) Communication model configuration management module: First, the parameters of the underwater acoustic communication machine are initially set through this module to provide a basic initial configuration for the link operation. During the communication process, the module can dynamically adjust the communication parameters according to the link status information, including the optimization of transmission power, the switching of modulation methods, the re-planning of routing paths, etc., to ensure that the communication system maintains efficient and stable performance in the changing ocean environment.

[0029] (2) Submarine status information transmission and reception module: Based on the communication model configuration, the module dynamically determines the role of the submarine as a source or a sink, and accordingly transmits or receives communication data.

[0030] (3) Communication status information simulation module: Through the dynamic monitoring of the communication situation, this module uses icons of different colors on the nautical chart to visually display the status and location of the underwater platform. As Figure 5 shown, if the communication is successful, the system marks the location of the underwater platform on the nautical chart with a green icon; if the communication fails, a red icon is used to mark the location of the underwater platform on the nautical chart. Through this visualization method, the operator can quickly grasp the current operating status of the communication link, identify the link problem areas, and provide real-time information support for subsequent optimization decisions.

[0031] (4) Underwater mobile platform working sea area determination module: This module combines Geographic Information System (GIS) data, mission requirements, and environmental characteristics to determine the working sea area of the underwater mobile platform or equipment. By accurately identifying the working area, this module provides accurate environmental input parameters for acoustic field modeling and link optimization. As Figure 2 shown, the underwater mobile platform working sea area determination module imports a real sea area nautical chart and combines it with the geographical location of the underwater mobile platform to display it on the nautical chart.

[0032] (5)Ocean Acoustic Field Simulation Module: Based on underwater acoustic propagation theory, this module constructs a simulation model of the ocean acoustic field, comprehensively considering key environmental parameters such as water depth, water temperature, salinity, and seabed topography, and simulates the propagation characteristics of sound waves in the ocean. The data output by the module provides important references for the analysis of communication link performance. Especially in complex and changeable ocean environments, it provides reliable acoustic environment information for link optimization decisions.

[0033] The ocean acoustic field simulation module accurately simulates the propagation characteristics of sound waves in the ocean according to the parameters of the ocean environment (such as water depth, water temperature, salinity) and the characteristics of the working sea area, and obtains the sound speed gradient map and propagation loss map.

[0034] As shown in the sound speed gradient map Figure 3 The system calculates the sound speed distribution at different depths by importing oceanographic conditions and combining empirical formulas, thereby generating a sound speed profile and further obtaining a sound speed gradient map. The sound speed gradient map is used to represent the trend of sound speed changing with depth and can reflect the propagation path and characteristics of sound waves in the medium.

[0035] As shown in the propagation loss map Figure 4 It is used to show the attenuation of sound wave energy during propagation, evaluate the signal intensity of sound waves at a specific distance, and provide a theoretical basis for the selection of communication links.

[0036] (6)Communication Link Performance Analysis Software: The system uses this software to comprehensively evaluate the performance of the communication link in the target environment. The analysis content includes indicators such as bandwidth utilization rate, delay characteristics, signal attenuation, and data packet loss rate. The software combines real-time monitoring data and historical records to generate a detailed link performance evaluation report, providing scientific analysis results for operators and supporting the formulation of link optimization and adjustment strategies.

[0037] (7)Communication Link Usage Suggestion Module: This module extracts key performance data from the results of communication link performance analysis and generates parameter adjustment suggestions, covering the optimization direction and operation priorities of link configuration. By combining real-time status, this module provides comprehensive optimization suggestions for operators and ensures that the adjustment of link configuration meets the task requirements and environmental changes.

[0038] Compared with related technologies, the acoustic field and communication task-driven underwater acoustic link performance analysis and optimization method provided by the present invention has the following beneficial effects: The present invention integrates communication status information and ocean acoustic field information, comprehensively analyzes the link performance, and identifies the main factors affecting link stability and efficiency. This multi-parameter fusion analysis method effectively makes up for the deficiencies of traditional single-factor analysis, significantly enhancing the system's response ability to complex environments. Based on the analysis results, the system can dynamically adjust communication strategies, including but not limited to optimizing transmission power, modulation methods, and routing paths, etc., to adapt to environmental changes and communication requirements.

[0039] The present invention has significant practical value and application prospects. In cross-sea communication tasks, by simulating the acoustic field to predict the sound wave propagation path and optimizing the routing strategy, the communication delay and data loss rate have been successfully reduced. In underwater detection tasks, by real-time monitoring the link status and promptly activating the error correction mechanism, the integrity and accuracy of data transmission have been ensured. In addition, the technology has also verified its stability and efficiency in tests under various complex ocean environments, significantly improving the overall performance of the communication system.

[0040] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent process transformation made using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks, characterized in that: This method integrates the communication state information simulation module and the ocean acoustic field simulation module, combines the multi-parameter fusion analysis technology, integrates the communication state information and the ocean acoustic field information, comprehensively analyzes the link performance, identifies the main factors affecting the link stability and efficiency, and thus realizes the accurate analysis and dynamic optimization of the underwater acoustic communication link performance, including: The communication status information simulation module is responsible for real-time capture and simulation of key status parameters of the underwater acoustic communication link, and the ocean acoustic field simulation module is used to construct a relationship model between the acoustic wave propagation characteristics and the environmental parameters; In addition to the communication status information simulation module and the ocean sound field simulation module, the method also includes a communication model configuration management module, a submarine status information transceiver module, an underwater mobile platform working sea area determination module, a communication link performance analysis software, and a communication link use suggestion module, wherein the submarine status information transceiver module includes a submarine status information transmitting module and a submarine status information receiving module: The method includes the following steps: S1. First, the underwater mobile platform working sea area determination module determines the working sea area of ​​the underwater platform and provides ocean environment parameters for acoustic field modeling; S2, then the ocean sound field simulation module constructs a sound field simulation model according to the ocean environment parameters to simulate the sound wave propagation characteristics; S3, the communication model configuration management module preliminarily sets the underwater acoustic communication machine parameters and dynamically adjusts the communication parameters according to the link status; S4, the submarine status information transceiver module determines the submarine as a source or sink, and sends or receives data, including submarine status information; S5, the communication status information simulation module marks the communication status of the underwater platform with different colors on the nautical chart according to the submarine status information; S6, communication link performance analysis software comprehensively analyzes link performance based on communication parameters, acoustic field simulation model, and communication status, and generates an evaluation report; S7, the communication link usage suggestion module provides link configuration optimization suggestions based on the evaluation report; S8, the communication model configuration management module adjusts the communication parameters according to the link status information optimization suggestion, and after the adjustment, the submarine status information transceiver module sends and receives data again, the communication status information simulation module marks the communication status again, the communication link performance analysis software analyzes the link performance again, and generates an evaluation report again; the communication link usage suggestion module provides link configuration optimization suggestions again, and this cycle repeats; The entire process is a cyclical one, in which the system continuously monitors, analyzes, adjusts and optimizes the performance of the communication link to cope with the dynamic changes in the marine environment.

2. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The workflow of the communication model configuration management module is as follows: preliminarily set the parameters of the underwater acoustic communication machine, and then optimize and adjust the communication parameters based on the link status information by the dynamic link configuration adjustment module. The adjustment strategies include modifying the transmission power, selecting a better modulation method, switching the routing path, etc., to adapt to the changes in the current ocean environment and meet the mission requirements.

3. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The working process of the submarine status information transceiver module is: according to the parameters of the underwater acoustic communication machine, it is selected as a source or a destination to send or receive information.

4. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The working process of the communication status information simulation module is as follows: according to the communication situation, different colored icons are used to mark the position of the underwater platform on the nautical chart. If the communication is successful, a green icon is used to mark the position of the underwater platform on the nautical chart; if the communication fails, a red icon is used to mark the position of the underwater platform on the nautical chart.

5. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The working process of the underwater mobile platform working sea area determination module is as follows: before performing sound field modeling, the system determines the actual working sea area of ​​the underwater mobile platform or underwater equipment through the working area identification module. This module combines geographic information, mission requirements and environmental data to ensure a high degree of matching between simulation parameters and the actual environment.

6. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The working process of the ocean sound field simulation module is as follows: first, a simulation model of the ocean sound field is constructed through the sound field environment modeling module, which accurately simulates the propagation characteristics of sound waves in the ocean according to the parameters of the ocean environment and the characteristics of the working sea area.

7. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The workflow of the communication link performance analysis software is as follows: the system uses the software to comprehensively evaluate and analyze the operating status of the communication link in a specific environment. The evaluation content includes the link's bandwidth utilization, delay characteristics, signal attenuation and data packet loss rate key performance indicators, and generates a detailed evaluation report.

8. The method for analyzing and optimizing underwater acoustic link performance driven by acoustic field and communication tasks according to claim 1 is characterized in that: The workflow of the communication link usage recommendation module is as follows: after the performance evaluation is completed, the module extracts key performance data and generates summary information including the current link status and performance parameters.

Images