Satellite navigation equipment, and orientation method and device thereof

Abstract

The invention provides satellite navigation equipment, and an orientation method and an orientation device thereof. The orientation method comprises the steps of acquiring observation satellites determined by base lines formed by signal receiving equipment, figuring out one group of the satellites with the minimum relative dilution of precision (RDOP) serving as a reference satellite and main satellites, measuring carrier phases of the reference satellite and the main satellites continuously by means of the signal receiving equipment, searching for ambiguities of whole cycles of the carrier phases of the reference satellite and the main satellites, and finally calculating base line vectors formed by the signal receiving equipment according to the carrier phases, the ambiguities of whole cycles and the RDOP, wherein direction angles of the signal receiving equipment can be obtained after acquiring the base line vectors, thereby orienting the satellite navigation equipment. The satellite navigation equipment, and the orientation method and the orientation device thereof determine the reference satellite and the main satellites by combining with the RDOP, are high in positioning precision, and are conductive to calculating the base line vectors formed by the signal receiving equipment precisely, thereby precisely orienting the satellite navigation equipment.

Description

technical field [0001] The invention relates to the technical field of satellite navigation and orientation, in particular to a satellite navigation device and its orientation method and device. Background technique [0002] The world's four major satellite navigation systems include China's Beidou satellite navigation system, the US GPS satellite navigation system, Russia's "Glonass" satellite navigation system, and the European "Galileo" satellite navigation system. Satellite navigation system includes space segment, control segment and user segment. The space segment is composed of satellites, the control segment involves the operation and management of satellites, and the user segment includes military and civilian user equipment. As the application of high-precision positioning technology of satellite navigation satellite system, satellite navigation and orientation technology is based on the principle of satellite carrier phase signal interferometry to determine the d...

AI Technical Summary

Problems solved by technology

[0003] Determining the reference star and the main star is a key step in satellite navigation and orientation technology. The spatial geometric distribution of the reference star and the main star will affect the positioning accuracy. The traditional method is to select the four satellites with the smallest geometric accuracy attenuation factor as the reference star and the main star. The method is only suitable for static positioning measurement with slow star change speed, and cannot meet the positioning accuracy requirements in the case of high dynamic precision relative measurement with fast star change speed

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