A method for optimizing the layout of base stations in a marine dynamic network

Abstract

The invention discloses a method for optimizing the layout of marine dynamic network base stations, which belongs to the technical field of satellite positioning and navigation. The invention includes using a set of binary data to encode all available base stations in a certain area of ​​the sea, and indicating whether a base station is selected as a positioning base station through the assignment of 0 and 1. The random generation method is used to determine the initial population, and the initial population needs to include a certain number of multi-base station layout optimization schemes in a certain area of ​​the sea that meet the layout optimization principle. The invention uses the graph theory model to transform the multi-base station layout optimization problem into the problem of finding the optimal solution of the solution space, and finally realizes the layout optimization problem of the marine dynamic network base station. The realization of the method effectively expands the coverage of the multi-base station network, Improve the range of high-precision positioning at sea. Therefore, the method proposed in the present invention is very meaningful for marine users who need high-precision positioning.

Description

technical field [0001] The invention discloses a method for optimizing the layout of a marine dynamic network base station. Background technique [0002] With the development of the Global Navigation Satellite System (GNSS), satellite positioning has become a research hotspot in the field of maritime high-precision positioning. At present, the positioning of maritime users usually adopts satellite single-point positioning. The traditional single-point positioning accuracy can only reach the meter level. Although precise single-point positioning can improve the positioning accuracy, it is limited by external clock orbit correction products, and the convergence speed of positioning results is slow. In order to achieve high-precision positioning at the sub-meter level or even decimeter level at sea, the onshore reference station can be used to perform differential positioning for offshore users, but the operating distance of the shore reference station is limited. Considering ...

AI Technical Summary

Problems solved by technology

However, the number of reference stations should not be too many, because too many reference stations will increase the burden on the data processing center. In addition, the position error of the reference stations composed of offshore carriers is larger than that of conventional reference stations. Under the condition of coverage, it is necessary to use as few reference stations with large position errors as possible to maximize the role of each reference station in the dynamic multi-base station network

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