Abstract
With the rapid development of global satellite navigation system technology, multi-mode satellite navigation positioning technology that can be compatible with multiple navigation systems at the same time is bound to become the future development trend. Compared with the single-mode navigation system, the multi-mode navigation system has many advantages, such as a large number of visible stars, a wide coverage, high positioning accuracy, and good reliability. Based on this, this paper applies Beidou and GPS dual-satellite positioning algorithms in substations and studies its key technologies. Specifically, with the aid of MATLAB to solve the Beidou double satellite positioning, GPS positioning results, and the big dipper, GPS double satellite positioning in two times, four times, eight times more weight under the condition of coordinate values and the actual coordinates on the x, y, and z axes deviation were compared. The results pointed out that GPS and Beidou double satellite single point positioning effect would be different under different weights. Therefore, in the actual positioning, the positioning effect of the algorithm can be improved by adjusting the weight. In order to test the feasibility of the proposed Beidou and GPS dual satellite positioning algorithms, positioning experiments were carried out, and the results were compared with the single satellite positioning results. The results showed that the curves of Beidou and GPS dual satellite positioning algorithms were highly fitting to the actual curves, confirming the feasibility of the proposed algorithm. This study aims to improve the accuracy and efficiency of substation positioning and navigation for the development of domestic power transformation.
Highlights
With the rapid development of science and technology and the continuous advancement of navigation technology, navigation technology has been widely used in people’s daily life and related scientific research activities, especially making important contributions to substation inspection and navigation [1–5]
The Beidou Navigation System is a global navigation and positioning system independently developed in China and compatible with the three existing navigation systems
The selection of different weights has a different influence on the positioning deviation of Global Position System (GPS) and Beidou twin satellites single point positioning; it is concluded that the selection of appropriate weights can appropriately improve the positioning accuracy of the two satellites in the process of positioning the two satellites
Summary
With the rapid development of science and technology and the continuous advancement of navigation technology, navigation technology has been widely used in people’s daily life and related scientific research activities, especially making important contributions to substation inspection and navigation [1–5]. Due to the special substation environment and the interference of magnetic fields and other factors, it is difficult for a single-mode positioning and navigation receiver system to efficiently complete the positioning and navigation tasks of the substation [6–8]. A single-mode positioning and navigation system will have problems with fixed errors and the number of satellites, which further inhibits the availability and integrity of the satellite navigation and positioning system [9,10]. In order to solve this problem, this paper will propose a solution method for Beidou and GPS dual satellite positioning systems to
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