Positioning method of electric field measuring device

Abstract

The invention discloses a positioning method of an electric field measuring device, which comprises the following steps: firstly, building a standard current source with the functions of simulating astandard electric dipole, recording a flight path and the like; secondly, arranging an electric field measuring device; thirdly, collecting environmental background electric field data; fourthly, collecting standard source electric field data; fifthly, constructing a state space model for positioning the electric field sensor; and finally, positioning the electric field sensor by using a Kalman filtering method according to the measured information such as the measured electric field signal, the track of the standard source and the like. The positioning method of the electric field measuring device is used for underwater electric field sensors, the positioning accuracy can reach 0.2 m, no equipment is required to be added on the basis of the electric field measuring device, the cost is low, the environment noise interference resistance is high, the device is not limited by the environment of a measuring area, and the positioning method of the electric field measuring device can be widely applied to the fields of ship electric field measurement evaluation, underwater positioning, geological exploration and the like.

Description

technical field [0001] The invention relates to the technical field of position measurement, in particular to a positioning method for an electric field measurement device. Background technique [0002] In order to measure the electric field of a ship, it is necessary to deploy some electric field measurement nodes on the seabed or in the sea. Only by accurately guiding the position of the measurement nodes can the accurate evaluation or tracking and positioning of the electric field of the ship be realized; on the other hand, some fixed underwater monitoring equipment also needs accurate Know its underwater position, and these devices may be quite different from the water entry position due to the influence of ocean currents during deployment. How to accurately, quickly and conveniently locate the underwater measurement device has always been a big problem. The traditional commonly used positioning methods include inertial navigation and acoustic short baseline. For the poo...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a positioning method for an electric field measuring device. The invention uses a standard signal source, combines the electric field model and Kalman filter estimation, and solves the problem of lack of positioning means for the current underwater electric field measuring device and the low accuracy of the traditional positioning method

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