Underwater acoustic network topology sensing method based on vector orientation and distance measurement

An underwater acoustic network and vector orientation technology, which is applied to the direction or offset system, positioning, and measuring devices. It can solve the problems of long sensing period, complex hardware, and large size, and achieve high cost, complex algorithm, and reduction. The effect of small hardware facilities
CN112558003AActive Publication Date: 2021-03-26NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2021-03-26

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Abstract

The invention relates to an underwater acoustic network topology sensing method based on vector orientation and distance measurement, and belongs to the field of underwater acoustic signal processing.The method comprises steps of supposing that the underwater acoustic network node only has one signal source node, orientating two signal sources simultaneously based on a single vector hydrophone, gradually positioning all node positions in the underwater acoustic network by taking the source node as a reference and adopting an RSSI (Received Signal Strength Indicator) distance measurement method, and further positioning all nodes in the underwater acoustic network according to a time relationship that a signal arrives at the vector hydrophone; judging the information flow direction of the internal nodes of the underwater acoustic sensor network to complete underwater acoustic network topology sensing. According to the method, only one vector hydrophone is used, RSSI ranging and mathematical geometry methods are combined, the required hardware is less, the operation is simple, and the adaptability is high.
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Description

technical field

[0001] The invention belongs to the field of underwater acoustic signal processing, in particular to an RSSI ranging signal processing method for orienting underwater acoustic network topology nodes by using a single vector hydrophone. Background technique

[0002] The perception problem of underwater acoustic network can be regarded as the development of traditional water area single target detection and recognition problem in underwater acoustic network. Traditional single-target perception methods generally rely on the capture of individual target acoustic signals to complete the perception of a single target. However, in the context of the network, the detection of a single target cannot solve the problem of underwater acoustic network perception. It is necessary to make full use of the information interaction between nodes in the network to perceive from the network level as a whole.

[0003] A typical system for underwater acoustic network sensing has ...

Claims

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