Marine dynamic network base station layout optimization method

Abstract

The invention discloses a marine dynamic network base station layout optimization method, and belongs to the technical field of satellite positioning and navigation. The method comprises the followingsteps: encoding all available reference stations in a certain marine region range by utilizing a group of binary data, and representing whether a certain base station is selected as a positioning reference station or not through assignment of 0 and 1; determining an initial population by using a random generation mode, wherein the initial population needs to contain a certain number of multi-base-station layout optimization schemes and the like which meet a layout optimization principle in a certain marine region range. According to the method, the multi-base-station layout optimization problem is converted into the problem of searching for the optimal solution of the solution space through the graph theory model, finally, the layout optimization problem of the offshore dynamic network base station is solved, the coverage range of the multi-base-station network is effectively enlarged, and the action range of offshore high-precision positioning is widened. Therefore, the method provided by the invention is of great significance to offshore users with high-precision positioning requirements.

Description

technical field [0001] The invention discloses a method for optimizing the layout of a marine dynamic network base station, which relates to how to model a layout problem based on the layout principle of a reference station, and transforms the layout optimization into a problem of finding an optimal solution, belonging to the technical fields of satellite positioning and navigation. Background technique [0002] With the development of Global Navigation Satellite System (GNSS), satellite positioning has become a research hotspot in the field of high-precision maritime positioning. At present, satellite single-point positioning is usually used for maritime user positioning. The accuracy of traditional single-point positioning can only reach the meter level. Although precise single-point positioning can improve positioning accuracy, it is limited by external clock track correction products, and the convergence speed of positioning results is slow. In order to achieve sub-meter...

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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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