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Underwater communication equipment, transmitter and receiver with encryption and decryption capabilities

An underwater communication, encryption and decryption technology, applied in synchronous receivers, synchronous transmitters, secure communication devices, etc., can solve problems such as being unsuitable for portable devices, complex algorithms, and no encryption for analog voice communication machines.

Active Publication Date: 2022-03-11
THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, underwater communication encryption methods are all aimed at underwater digital communication; however, the underwater digital communication algorithm is complex, resulting in relatively high power consumption and large volume of the realization platform, which is not suitable for portable devices; the current market portable underwater All the communicators use the analog voice communication mode, the analog voice communicator has no encryption function, and the anti-eavesdropping security function is poor

Method used

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  • Underwater communication equipment, transmitter and receiver with encryption and decryption capabilities
  • Underwater communication equipment, transmitter and receiver with encryption and decryption capabilities
  • Underwater communication equipment, transmitter and receiver with encryption and decryption capabilities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the underwater communication equipment with encryption and decryption capabilities is composed of a transmitting unit and a receiving unit. The transmitting unit has a first A / D conversion module, the signal input terminal of the first A / D conversion module is connected to a microphone, the signal output terminal of the first A / D conversion module is connected to a cepstrum encryption module, and the signal output of the cepstrum encryption module is The terminal is connected to the modulation module, and the signal output terminal of the modulation module is connected to the first D / A conversion module; the signal output terminal of the first D / A conversion module is connected to the transmitting transducer;

[0035] The receiving unit has a receiving transducer, the signal output terminal of the receiving transducer is connected to a signal conditioning circuit, the signal conditioning circuit is connected to a second A / D conversion module, ...

Embodiment 2

[0050] The difference between the second embodiment and the first embodiment is that a synchronous information adding module and a synchronous information parsing module are added, and the rest of the structure and working process are the same as the first embodiment. By adding synchronization information, the accuracy of signal reception by the receiving unit can be effectively guaranteed, thereby further improving the underwater communication effect.

[0051] Such as figure 1 As shown, in the transmitting unit, a synchronization information addition module is provided between the modulation module and the first D / A conversion module, and the synchronization information addition module is used to add synchronization information between two frames of data. Correspondingly, in the receiving unit, a synchronization information analysis circuit is provided between the second A / D conversion module and the demodulation circuit, and the synchronization information analysis circuit i...

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Abstract

The invention relates to an underwater communication device with encryption and decryption capabilities, a transmitter and a receiver, including a transmitting unit and a receiving unit, and the transmitting unit includes a sequentially connected first A / D conversion module, a cepstrum encryption module, a modulation module, a first D / A conversion module and a transmitting transducer; the receiving unit includes a receiving transducer connected in sequence, a signal conditioning circuit, a second A / D conversion module, a demodulation circuit, a cepstrum decryption module and a first Two D / A conversion modules. The invention can effectively realize underwater analog communication encryption.

Description

technical field [0001] The invention relates to an underwater communication device with encryption and decryption capabilities, a transmitter and a receiver. Background technique [0002] Underwater communication is divided into two types: underwater digital communication and underwater analog communication. In the prior art, underwater communication encryption methods are all aimed at underwater digital communication; however, the underwater digital communication algorithm is complex, resulting in relatively high power consumption and large volume of the realization platform, which is not suitable for portable devices; the current market portable underwater All the communicators use the analog voice communication mode. The analog voice communicators have no encryption function, and the anti-eavesdropping security function is poor. Contents of the invention [0003] The object of the present invention is to provide an underwater communication device, a transmitter and a r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B13/02H04B11/00H04L9/40H04L7/00
CPCH04B13/02H04B11/00H04L63/0428H04L7/0091H04L7/0079
Inventor 郭晓明洪小洋唐升波孙启盟
Owner THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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