Three-antenna-array high-precision orientation method and system based on Beidou system

An antenna array, high-precision technology, applied in the field of satellite positioning, can solve the problems of high cost, volume and weight, low integration, weak practicability, etc., and achieve the effect of high-precision solution process and high-precision orientation

Active Publication Date: 2014-04-16
苍穹数码技术股份有限公司 +1
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Problems solved by technology

The system has low integration, low reliability, and weak practicability, and cannot be used on a large scale, but its cost, volume, and weight are relatively high. The most important thing is that its technology relies heavily on GPS and foreign manufacturers, and its autonomy and independence are hampered

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  • Three-antenna-array high-precision orientation method and system based on Beidou system

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Embodiment Construction

[0037] Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. In addition, the term "coupled" includes any direct and indirect electrical connection means. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrical...

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Abstract

The invention relates to the technical field of satellite positioning and discloses a three-antenna-array high-precision orientation method and system based on the Beidou system. The method comprises the steps of receiving a BDS signal with antenna arrays and converting the BDS signal into a digital signal; obtaining BDS RNSS satellite ephemeris data according to the digital signal and measuring carrier phase information at the same time; conducting whole-cycle ambiguity resolution on the carrier phase information to obtain positioning data and preliminary orientation data; measuring the base lengths and pitching angles between the antenna arrays, measuring the included angles between the antenna arrays, and conducting iteration on the measuring results again to calculate the azimuthal angle of a baseline vector; conducting comprehensive calculation and coordinate transformation to obtain an orientation result of a point to be measured. According to the three-antenna-array high-precision orientation method and system based on the Beidou system, a complete and high-precision Beidou system navigation and positioning resolving process is formed through the antenna arrays, and a high-precision navigation and orientation positioning technology independent of the GPS technology is realized.

Description

technical field [0001] The invention relates to the technical field of satellite positioning, in particular to a three-antenna array high-precision orientation method and system based on the Beidou system. Background technique [0002] With the more and more extensive and in-depth application of the GPS satellite navigation system, the GPS application field has expanded to many aspects of military and civilian use, providing navigation for many fields such as aviation, aerospace, military, transportation, transportation, resource exploration, communication, and meteorology. Applications and services for positioning, speed measurement and timing. Since the 1990s, with the development and application of carrier phase measurement and other technologies, especially the improvement of the performance of GPS receiver hardware, the decline in the price of GPS high-precision measurement equipment, and the research and verification of GPS fast attitude determination and orientation a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42
CPCG01S3/14G01S19/42G01S19/53
Inventor 谭吉福胡新汉杨必武张一罗晓春杨春张玉华彭宜平李伟王华
Owner 苍穹数码技术股份有限公司
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