Method and device for evaluating positioning accuracy of bathyscaph, medium and equipment
The invention belongs to the technical field of underwater navigation, and provides a bathyscaph positioning precision evaluation method and device, a medium and equipment, and the bathyscaph positioning precision evaluation method based on a virtual reference point only needs to combine navigation...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention belongs to the technical field of underwater navigation, and provides a bathyscaph positioning precision evaluation method and device, a medium and equipment, and the bathyscaph positioning precision evaluation method based on a virtual reference point only needs to combine navigation coordinates, coordinates measured by an ultra-short baseline positioning system, slant distance data and bathyscaph speed, course and attitude data. According to the method, the range of the horizontal positioning precision is deduced through the number product operation, the number product inequality, the quadratic function extreme value solving and the horizontal error sorting algorithm, a special combined navigation positioning precision evaluation test does not need to be performed, and compared with an existing evaluation method, the method is more convenient and rapid, and the cost is saved. The method has important reference significance in fixed-point laying and recovery of submarine equipment of the bathys |
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