Online signal level simulation transceiving system of underwater mobile platform

Abstract

The invention relates to the technical field of underwater communication, discloses an online signal-level simulation transceiving system of an underwater mobile platform, and aims to improve the performance of an underwater communication system in a complex underwater environment, especially the instantaneity of submarine state monitoring and instruction receiving. The system integrates multi-mode communication, signal optimization and error correction technologies, and ensures that efficient and stable data transmission and information processing are realized in a variable underwater acoustic channel environment. By dynamically switching a low-speed transmission mode, a medium-speed transmission mode and a high-speed transmission mode and combining an error detection and correction mechanism of LDPC codes and a signal level simulation technology, a modulation and coding algorithm is optimized, and the anti-interference capability and the transmission efficiency of signals are improved. In addition, the system also introduces a quasi real-time and real-time communication combined mechanism to realize efficient communication of the underwater mobile platform. According to the invention, the communication efficiency and reliability are obviously improved, the adaptability of the system is enhanced, the real-time performance is ensured, and a powerful guarantee is provided for improving the underwater working efficiency.

Description

Technical Field

[0001] The present invention relates to the field of underwater communication technology, in particular to a real-time communication system for status monitoring and command reception of an underwater mobile platform, with particular attention paid to efficient, reliable and adaptive data transmission and information processing technology, and more particularly to an online signal-level simulation transceiver system for an underwater mobile platform. Background Art

[0002] In practical applications, the real-time transmission of status information and instructions of underwater mobile platforms is of great significance for improving work efficiency. However, existing underwater communication systems face many technical challenges in practical applications, including limited communication distance, low data transmission rate, insufficient anti-interference ability, and poor communication stability. These technical bottlenecks seriously restrict the combat capability of submarines in complex underwater environments.

[0003] The complexity of the underwater environment stems from the high loss of the acoustic channel, the multipath effect and the interference of environmental noise. These factors make it difficult for existing communication systems to meet the needs of real-time data transmission. In addition, the dynamic nature of underwater mobile platforms causes the communication channel to change constantly, which puts higher requirements on the adaptive ability of the communication system. In response to these problems, research and practice in recent years, such as the relay communication of hydroacoustic gliders, the quasi-real-time communication of buoys, and the design of non-real-time voice communication systems, have provided important technical references for solving underwater communication problems. However, these technologies still have room for improvement in real-time, stability and adaptability to complex environments. There is an urgent need for a new system that can integrate multi-mode communication, signal optimization and dynamic adjustment functions.

[0004] Therefore, it is necessary to provide an online signal level simulation transceiver system for an underwater mobile platform to solve the above technical problems. Summary of the invention

[0005] The present invention provides an online signal-level simulation transceiver system for an underwater mobile platform, which aims to solve the problems of limited communication distance, low data rate, insufficient anti-interference ability, etc. in complex underwater environments, especially the real-time and reliability requirements of submarine status monitoring and command reception. The system integrates multi-mode communication, adaptive adjustment, signal optimization and error correction technology to ensure efficient and stable communication in a variable underwater acoustic channel environment.

[0006] The core of the present invention includes the following technical contents: This system supports multi-mode data transmission, and dynamically switches between low-speed, medium-speed and high-speed transmission modes according to the conditions of the underwater acoustic channel. In conditions where the channel is stable, such as near the coast, the high-speed mode is preferred to achieve efficient data exchange; in conditions of the open sea or where interference is large, the low-speed mode is switched to ensure data integrity and communication robustness. In order to improve reliability, this system also uses advanced error detection and correction technologies, such as a data protection mechanism based on low-density parity check code (LDPC), to effectively reduce the incidence of data packet loss and transmission errors. Then, signal-level simulation technology is used to simulate the signal transmission process under different underwater acoustic channel conditions, combined with the dynamic feedback of the communication link, to optimize the modulation and coding algorithm, and improve the signal's anti-interference ability and transmission efficiency. Especially under conditions of strong multipath interference, the simulation results can be used to guide the real-time adjustment of parameters and improve the stability of communication.

[0007] In addition, the system introduces a mechanism combining quasi-real-time and real-time communication in the communication protocol. In high-priority tasks, the status information and command content of the underwater mobile platform are transmitted in real time.

[0008] The underwater mobile platform online signal level simulation transceiver system provided by the present invention comprises: an information input unit, used for inputting real-time status information and instructions of the underwater mobile platform into the system; The working frequency band selection unit allows users to select different working frequency bands, including 16bps, 64bps or 4kbps, to adapt to different communication requirements and environmental conditions; A coding mode selection unit, used to select a suitable coding mode, including LDPC code and convolutional code; A modulation mode selection unit, used to select a suitable modulation mode, including frequency hopping and OFDM; A water acoustic channel simulation unit, used to simulate the water acoustic channel by combining real ocean information; A demodulation and decoding mode selection unit selects a corresponding demodulation and decoding mode according to the modulation and coding mode; A receiving end evaluation unit is used for the receiving end to evaluate the communication effect and return the evaluation result and the response to the command to the underwater mobile platform; The communication parameter adjustment unit is used to adjust the communication parameters according to the returned communication conditions. If the communication effect does not meet expectations, the underwater mobile platform will adjust the communication parameters according to the feedback from the receiving end; if the communication effect is good, the underwater mobile platform will continue to send status information and work instructions.

[0009] Compared with the related art, the underwater mobile platform online signal level simulation transceiver system provided by the present invention has the following beneficial effects: The present invention significantly improves the performance and practicality of the underwater mobile platform communication system through multiple technical innovations and integrations; The present invention improves communication efficiency: by optimizing multi-mode data transmission and signal processing algorithms, the optimal transmission rate under different underwater acoustic channel conditions is achieved; The present invention enhances the reliability of communication: the advanced error detection and correction mechanism effectively reduces data packet loss and transmission errors during the communication process, ensuring the integrity and accuracy of key information; The system has strong adaptability: by adjusting communication parameters in real time, it can maintain stable operation in complex underwater environments and adapt to the needs of different scenarios such as nearshore and offshore; The present invention has outstanding real-time performance: by integrating status monitoring and command receiving functions, the underwater mobile platform can obtain timely work information and command transmission in a dynamic underwater environment, providing a strong guarantee for improving underwater work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention provides a flow chart of an online signal level simulation transceiver system for an underwater mobile platform. DETAILED DESCRIPTION

[0011] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0012] Please refer to Figure 1 in, Figure 1 A flowchart of a preferred embodiment of the online signal level simulation transceiver system for an underwater mobile platform provided by the present invention.

[0013] The process of the underwater mobile platform online signal level simulation transceiver system proposed by the present invention is as follows: (1) Information input: The operator inputs the real-time status information and instructions of the underwater mobile platform into the system.

[0014] (2) Select the operating frequency band: The system provides a variety of operating frequency band options (16bps, 64bps, 4kbps). The operator selects the most appropriate frequency band based on current communication requirements and environmental conditions.

[0015] (3) Select a coding method: Select a suitable coding method from LDPC codes and convolutional codes based on the selected operating frequency band and expected communication efficiency.

[0016] (4) Select the modulation method: Select a modulation method from frequency hopping and OFDM based on the coding method and underwater environment characteristics.

[0017] (5) Selecting the underwater acoustic channel: Using real ocean data, simulate the underwater acoustic channel to predict the propagation characteristics of the signal in the underwater environment.

[0018] (6) Select demodulation and decoding method: Select the corresponding demodulation and decoding method according to the selected modulation and coding method.

[0019] (7) Receiving end: The receiving end analyzes the received signal, evaluates the communication effect, and sends the results and any necessary command replies back to the underwater mobile platform.

[0020] (8) Adjusting communication parameters: If the communication effect does not meet expectations, the underwater mobile platform will adjust the communication parameters, such as working frequency band, coding method, modulation method, etc., according to the feedback from the receiving end to optimize the communication effect. Once the communication effect is good, the underwater mobile platform will continue to send status information and work instructions.

[0021] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An online signal level simulation transceiver system for an underwater mobile platform, characterized in that: include: An information input unit, used to input real-time status information and instructions of the underwater mobile platform into the system; The working frequency band selection unit allows users to select different working frequency bands, including 16bps, 64bps or 4kbps, to adapt to different communication requirements and environmental conditions; A coding mode selection unit, used to select a suitable coding mode, including LDPC code and convolutional code; A modulation mode selection unit, used to select a suitable modulation mode, including frequency hopping and OFDM; A water acoustic channel simulation unit, used to simulate the water acoustic channel by combining real ocean information; A demodulation and decoding mode selection unit selects a corresponding demodulation and decoding mode according to the modulation and coding mode; A receiving end evaluation unit is used for the receiving end to evaluate the communication effect and return the evaluation result and the response to the command to the underwater mobile platform; The communication parameter adjustment unit is used to adjust the communication parameters according to the returned communication situation.

2. The underwater mobile platform online signal level simulation transceiver system according to claim 1, characterized in that: The system supports multi-mode data transmission and dynamically switches between low-speed, medium-speed and high-speed transmission modes according to the conditions of the underwater acoustic channel.

3. The underwater mobile platform online signal level simulation transceiver system according to claim 1, characterized in that: The system adopts advanced error detection and correction technology to effectively reduce the occurrence rate of data packet loss and transmission errors.

4. The underwater mobile platform online signal level simulation transceiver system as claimed in claim 1, characterized in that: The system adopts signal-level simulation technology to simulate the signal transmission process under different underwater acoustic channel conditions, combines the dynamic feedback of the communication link, optimizes the modulation and coding algorithm, and improves the signal's anti-interference ability and transmission efficiency.

5. The underwater mobile platform online signal level simulation transceiver system according to claim 1, characterized in that: The system introduces a mechanism combining quasi-real-time and real-time communications into the communication protocol, and transmits the status information and instruction content of the underwater mobile platform in real time in high-priority tasks.

6. The underwater mobile platform online signal level simulation transceiver system according to claim 1, characterized in that: Through multiple technological innovations and integrations, the system significantly improves the performance and practicality of the underwater mobile platform communication system, including improving communication efficiency, enhancing communication reliability, and having strong adaptability and outstanding real-time performance.

7. The underwater mobile platform online signal level simulation transceiver system as claimed in claim 1, characterized in that: When the communication parameter adjustment unit adjusts the communication parameters according to the returned communication conditions, if the communication effect does not meet expectations, the underwater mobile platform will adjust the communication parameters according to the feedback from the receiving end; if the communication effect is good, the underwater mobile platform will continue to send status information and work instructions.

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