Application of sound ray correction algorithm based on spatial scale in long baseline underwater acoustic positioning system

A technology of spatial scale and correction algorithm, applied in radio wave measurement systems, positioning, measurement devices, etc., can solve problems such as the decline of positioning accuracy, the deviation of measurement results, and the occurrence of outliers in positioning points, so as to achieve simple and easy operation and calculation. The effect of fast, fast and streamlined operations

Pending Publication Date: 2021-03-23
SHANDONG UNIV OF SCI & TECH +1
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Problems solved by technology

If the average sound velocity or an incorrect sound velocity profile is used, the measurement results will be offset, the positioning accuracy will be reduced, and the outlier value will appear in the positioning point. Therefore, it is ne

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  • Application of sound ray correction algorithm based on spatial scale in long baseline underwater acoustic positioning system
  • Application of sound ray correction algorithm based on spatial scale in long baseline underwater acoustic positioning system
  • Application of sound ray correction algorithm based on spatial scale in long baseline underwater acoustic positioning system

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[0047] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clarified below in conjunction with the drawings in the embodiments of the present invention , a complete description, obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. 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.

[0048] refer to Figure 1-3 The preferred embodiment of the present invention provides an application of a sound ray correction algorithm based on a spatial scale on a long baseline underwater acoustic positioning system. The long baseline positioning system includes two parts: one...

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Abstract

The invention relates to a sound ray correction method, in particular to application of a sound ray correction algorithm based on a spatial scale to a long baseline underwater acoustic positioning system. By knowing the depths of a transponder and an underwater target, according to the vertical distance simplification principle, the sound velocity profile is simplified, redundant repeated data which can generate interference are abandoned, data which are obvious in change and have calculation value are reserved, calculation iteration of sound ray correction is greatly reduced, rapid simplification operation is achieved, and the data processing efficiency of sound ray tracking is obviously improved. The simplified sound velocity profile is layered on the spatial scale, and the non-uniform spatial distribution of seawater is further considered, so that the method is more in line with the actual scene.

Description

technical field [0001] The invention relates to a sound ray correction method, in particular to the application of a sound ray correction algorithm based on a spatial scale to a long baseline underwater acoustic positioning system. Background technique [0002] The long baseline underwater acoustic positioning system is one of the most commonly used underwater acoustic positioning methods in the deep sea environment. It is widely used in marine engineering and marine scientific research such as underwater precision construction, tracking and positioning of various underwater submersibles, and monitoring of seabed plate movement. middle. [0003] The working principle of the long-baseline hydroacoustic positioning system is as follows: the interrogation signal sent by the positioned target is transmitted to the base array of the submarine transponder, and the subsea transponder receives the interrogation signal and resends the positioning signal to the positioned target. By ...

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Application Information

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IPC IPC(8): G01S5/30
CPCG01S5/30
Inventor 罗宇程梦迪施剑马晓东陈聪张一帆
Owner SHANDONG UNIV OF SCI & TECH
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