Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Seabed underwater acoustic response type positioning method and system based on synchronous signal mechanism

A technology of synchronizing signals and positioning methods, applied in radio wave measurement systems, re-radiation of sound waves, instruments, etc., can solve the problems of inability to overcome error correction, insufficient real-time performance, and low accuracy, and achieve improved underwater acoustic positioning accuracy, Solve the effect of positioning time delay and ensure stability

Pending Publication Date: 2019-01-11
中国船舶重工集团公司七五0试验场
View PDF15 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current underwater positioning system has problems such as low accuracy, insufficient real-time performance, and inability to overcome error correction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Seabed underwater acoustic response type positioning method and system based on synchronous signal mechanism
  • Seabed underwater acoustic response type positioning method and system based on synchronous signal mechanism
  • Seabed underwater acoustic response type positioning method and system based on synchronous signal mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1 A submarine underwater acoustic response positioning system based on a synchronous signal system, comprising: a target transmitter 1, installed on a device that requires positioning, for transmitting a positioning function code and receiving a response signal; a submarine transponder 2, at least three one, distributed on the seabed around the target transmitter 1, used to receive the positioning function code or response signal sent by the target transmitter 1 or other subsea transponders 2, and can transmit the response signal; the synchronization signal system is written into the target transmitter 1 and the submarine transponder 2 are used as information carriers for underwater acoustic communication, and the synchronization signal system in the target transmitter 1 and the submarine transponder 2 is in a synchronized state; the receiver 3 is located above the submarine transponder 2 and the The above-mentioned target transmitter 1 is connected by communi...

Embodiment 2

[0065] Embodiment 2: The submarine underwater acoustic response positioning method based on the synchronous signal system, the target transmitter and each subsea transponder all use a set of consistent synchronous signal system, please refer to Figure 10 , this method includes the following steps:

[0066] Step 1. Immediately after the falling edge of the synchronization signal of the target transmitter is valid, the command code S1 of the underwater acoustic positioning signal is issued;

[0067] Step 2. Each subsea transponder X passes through T X After receiving the command code S1 of the underwater acoustic positioning signal after a time delay of T Δ After that, transmit the first response signal A1 X ;

[0068] Step 3. After the falling edge of the next synchronization signal arrives, each subsea transponder X immediately transmits the second response signal A2 X ;

[0069] Step 4. The receiver receives the command code S1 of the underwater acoustic positioning sig...

Embodiment 3

[0086] On the basis of embodiment 1, before step 1, also include equipment hydroacoustic synchronous timing step, described equipment comprises each submarine transponder and target transmitter, and described synchronous timing is each submarine transponder and target transmitter Internal atomic clock synchronization.

[0087] The hydroacoustic synchronous timing steps of the equipment include:

[0088] S1. Immediately after the falling edge of the synchronization signal of the target transmitter is valid, the first timing signal instruction code is issued;

[0089] S2. Each subsea transponder X passes through T X After receiving the first timing signal command code after the time, delay T Δ Afterwards, respectively launch their respective No. 1 return acknowledgment signals;

[0090] S3, target launcher at 2T X +T Δ After receiving each No. 1 return response signal after the time, after the falling edge of the next synchronization signal arrives, delay the cycle of one s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a seabed underwater acoustic response type positioning method and system based on a synchronous signal mechanism. The system mainly comprises a target transmitter, seabed transponders, a cable control receiver, an onboard processor and the like. The target transmitter is in communication interconnection with the onboard processor. The onboard processor is used for remotelytransmitting underwater acoustic instructions to a seabed transponder array. The seabed transponders are used for realizing signal response among the seabed transponders or between the seabed transponders and a cable control transmitter. The cable control receiver is used for receiving underwater acoustic distance information from the seabed transponders to the cable control transmitter. The onboard processor is used for calculating coordinate position information of the cable control transmitter and visually displaying the coordinate location information. In the underwater acoustic positioning mode, the great depth, large area, high precision, high timeliness and multi-target point synchronous positioning problem under complex sea conditions is solved, seabed real-time location positioning demands of different models of devices are satisfied, and a demand of navies for generalization, serialization and combination of dedicated guarantee equipment is satisfied.

Description

technical field [0001] The invention relates to an underwater ultrasonic signal transmission application technology, and relates to an underwater acoustic positioning technology, in particular to a submarine underwater acoustic response positioning method and system based on a synchronous signal system. Background technique [0002] As far as the underwater acoustic positioning system is concerned, there are various forms of positioning arrays at home and abroad. According to the installation form of the base array, there are bottom-mounted base arrays, buoy-type base arrays and ship-mounted base arrays; according to the length of the baseline, there are ultra-short baseline arrays, short baseline arrays and long baseline arrays. [0003] Especially in the case of a water depth of 6000m and strong background noise, the positioning accuracy must reach meter-level accuracy. Since the ship-borne and buoy-based arrays need to pass through the water depth of 6000m, the sound vel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01S15/74G01S7/521
CPCG01S7/521G01S15/74
Inventor 汪天伟童赛美周红坤邓玉聪綦森生潘少华
Owner 中国船舶重工集团公司七五0试验场
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com