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

Submarine navigation method and system combining multi-beam sounding

A navigation method and inertial navigation system technology, applied in the field of submarine navigation method and system combined with multi-beam sounding, can solve the problems of inertial navigation error increase, achieve the effect of improving accuracy and avoiding larger errors

Active Publication Date: 2020-06-12
中国人民解放军61540部队 +1
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inertial navigation is passive navigation. It does not need any external information. It is extremely concealed and has high practical value. However, the error of inertial navigation increases with time.

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
  • Submarine navigation method and system combining multi-beam sounding
  • Submarine navigation method and system combining multi-beam sounding
  • Submarine navigation method and system combining multi-beam sounding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] The object of the present invention is to provide a submarine navigation method and system combined with multi-beam sounding, which combines inertial navigation and gravity lighthouse to improve the precision of submarine navigation.

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings...

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

No PUM Login to View More

Abstract

The invention relates to a submarine navigation method and system combining multi-beam sounding, a submarine is guided by an inertial navigation system to sail in a maneuvering manner, when the navigation error accumulation is large, a nearby gravity lighthouse is searched in a marine gravity lighthouse database, and the gravity characteristic information of a target lighthouse is extracted. The submarine floats to the position over the target lighthouse, the underwater unmanned autonomous AUV carrying the multi-beam depth finder is released, the terrain of the target lighthouse is scanned through multi-beam equipment of the underwater unmanned autonomous AUV, and terrain feature information is extracted. Due to the fact that the earth free space gravity abnormal amplitude distribution andthe topographic relief form are in a positive correlation relationship, actually collected topographic features and lighthouse features in a marine gravity lighthouse database are subjected to planarmatching, then coordinate information of the submarine is obtained, and inertial navigation system errors are corrected according to coordinates. By correcting the inertial navigation system, the navigation accuracy is improved.

Description

technical field [0001] The invention relates to the field of submarine navigation, in particular to a submarine navigation method and system combined with multi-beam sounding. Background technique [0002] Inertial navigation is the current mainstream navigation method. The gyroscope is used to measure the heading, the accelerometer is used to measure the speed change, and the initial position of the submarine is added, and the current position coordinates can be obtained by the quadratic integral operation. Inertial navigation is passive navigation. It does not need any external information. It is extremely concealed and has high practical value. However, the error of inertial navigation increases with time. [0003] Aiming at the defects of the above-mentioned inertial navigation, the present invention proposes the concept of "gravity lighthouse": there are a large number of extremely steep seamounts formed by volcanic eruptions and plate movements in the ocean, and there ...

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): G01C21/16G01C21/20
CPCG01C21/005G01C21/165G01C21/203
Inventor 肖云任飞龙潘宗鹏
Owner 中国人民解放军61540部队
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