Position resolving method for improving positioning precision of underwater acoustic positioning system

A positioning accuracy and underwater acoustic positioning technology, which is applied in positioning, radio wave measurement system, measuring device, etc., can solve the problems of inability to meet the operation requirements of high-precision underwater robots, poor position coordinate accuracy, etc.

Active Publication Date: 2021-09-10
INST OF DEEP SEA SCI & ENG CHINESE ACADEMY OF SCI
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Problems solved by technology

However, the accuracy of position coordinates obtained by this method is generall

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  • Position resolving method for improving positioning precision of underwater acoustic positioning system
  • Position resolving method for improving positioning precision of underwater acoustic positioning system
  • Position resolving method for improving positioning precision of underwater acoustic positioning system

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Embodiment Construction

[0030] In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present invention.

[0031] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced...

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Abstract

The invention provides a position resolving method for improving the positioning precision of an underwater acoustic positioning system, which realizes the rapid positioning of the position of a receiver by adjusting the positioning precision of the receiver through a communication beacon pre-arranged at the seabed, and is characterized in that the rapid resolving method of the position of the receiver comprises the following steps: acquiring the initial coordinate of the receiver; calculating a partial derivative matrix G and a deviation vector B according to the initial coordinates; and calculating the coordinate error of the receiver based on the partial derivative matrix G and the deviation vector B, judging the coordinate error of the receiver, and if the coordinate error of the receiver meets the threshold requirement, calculating the latest coordinate of the receiver based on the coordinate error of the receiver and the initial coordinate of the receiver.

Description

technical field [0001] The invention relates to the technical field of underwater positioning, in particular to a position calculation method for improving the positioning accuracy of an underwater acoustic positioning system. Background technique [0002] The ocean plays a very important role in a country's strategy. Most of the flow of goods in international trade is transported by sea. It can be said that ocean transportation lines are often the lifeline of a country. The ocean also contains rich mineral resources, oil and natural gas, which can provide material guarantee for the development of the country. In addition, the ocean is also of great significance to a country's political and military affairs. Through the sea, the national army can go to many parts of the world. Now, with the development of marine development and utilization, underwater robot-related technologies have also been widely used. The positioning and navigation of underwater robots is the core te...

Claims

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Application Information

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IPC IPC(8): G01S5/26
CPCG01S5/26
Inventor 吕成财沈斌坚田川陈瑨张胜宗刘国顺宋元杰高潭赵强
Owner INST OF DEEP SEA SCI & ENG CHINESE ACADEMY OF SCI
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