Single beam and towing water depth measurement data consistency check method

Abstract

The invention provides a single beam and towing water depth measurement data consistency check method. The invention provides a measurement device; the measurement device comprises a measurement car,a GNSS receiver, a single-beam depth finder energy converter and a towing measurement system encoder are arranged on the measurement car; the method comprises the following steps: firstly establishinga space rectangular coordinate system through a theodolite, and then computing phase centers of the sensor and a measurement car body by utilizing a space forward intersection measurement principle calibration sensor and a space coordinate of the measurement car body, and then converting the phase center coordinate of each sensor to the car body coordinate system of the measurement car, thereby realizing the single-beam and towing measurement data consistency check. And the problem that the intertidal zone at the connecting part of the ocean and the land cannot acquire the terrain informationis solved.

Description

technical field [0001] The invention belongs to the field of mobile measurement data processing, and in particular relates to a consistency check method for single beam and towed water depth measurement data. Background technique [0002] With the proposal of China's marine strategy and the requirements of the development of marine economy, people urgently need to obtain more comprehensive information on water and land integration in the process of production and construction. The traditional bathymetry system can map the underwater terrain very well, and the laser scanner can obtain the spatial position information on the ground, but in the intertidal zone where the underwater and the ground are connected, the data cannot be obtained well by using these two methods. Integrating laser radar, GNSS, single-beam sounding system and towed measurement system, relying on mobile platforms such as vehicles and ships, constitutes a relatively complete mobile measurement system, and d...

AI Technical Summary

Problems solved by technology

The traditional bathymetry system can map the underwater terrain very well, and the laser scanner can obtain the spatial location information on the ground, but in the intertidal zone where the underwater and the ground are connected, the data cannot be obtained well by using these two methods

Integrating laser radar, GNSS, single-beam sounding system and towed measurement system, relying on mobile platforms such as vehicles and ships, constitutes a relatively complete mobile measurement system, and develops a new integrated technology system for land and water integrated information acquisition. Solved the problem that the terrain information could not be obtained in the intertidal zone at the junction of the ocean and the land

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