Target angle measurement positioning method on basis of convex combinations

Abstract

The invention discloses a target angle measurement positioning method on the basis of convex combinations. The target angle measurement positioning method mainly solves the problem of low positioning precision and positioning efficiency under the condition of errors of measured arrival angles in the prior art. The target angle measurement positioning method includes steps of 1, initializing arrival angle confidence parameters and angle measurement noise coefficients; 2, measuring arrival angles among target positioning points and physical reference points; 3, acquiring feasible regions of the target positioning points and selecting vertexes of the feasible regions as virtual reference points; 4, computing arrival angle matrixes according to coordinates of the virtual reference points and coordinates of the physical reference points; 5, creating the convex combinations of the virtual reference points according to the arrival angle matrixes so as to represent target functions of the target positioning points, and optimally solving the target functions to obtain the optimal combination coefficients; 6, computing coordinates of the target positioning points according to the optimal combination coefficients and the coordinates of the virtual reference points. The target angle measurement positioning method has the advantages that positioning results with high precision and efficiency as compared with the prior art can be acquired according to the measured arrival angles, and the target angle measurement positioning method can be applied to aviation and aerospace positioning.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an angle measurement positioning method, which is used for high-precision and high-efficiency positioning of a target. Background technique [0002] In the field of wireless communication technology, positioning technology and related value-added services have become research hotspots. Among them, positioning technology based on wireless measurement has highlighted important application value in mobile phone communication, mobile Internet, aerospace and other fields. [0003] The main idea of ​​positioning technology is to measure the distance between the target positioning point and the known physical reference point, establish the target equation and constraint relationship according to the spatial geometric relationship, and then combine the coordinate information of the known physical reference point to find the actual position of the target position...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that the requirements for additional information are high, and when the measurement reliability of additional constraints is not high, it will have a greater impact on the positioning results

In addition, this method cannot completely suppress the ranging noise. When the ranging information is noisy, the positioning accuracy will drop significantly.

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