Single star positioning device and a method

A single-satellite positioning and positioning method technology, applied in the field of navigation and positioning, can solve problems such as easy interference, satellite constellations and signals are easily interfered or damaged, and cannot be applied, and achieve the effect of simple and easy method

Active Publication Date: 2016-04-27
北京日月九天科技有限公司
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Problems solved by technology

A research report from the U.S. Navy on the future development of the GPS satellite system clearly pointed out: If the GPS system is not undergoing large-scale construction and transformation, then due to its fragility and easy interference, the satellite constellation and signals will be easily interfered or damaged. damage, and therefore will not be suitable for future wars

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  • Single star positioning device and a method
  • Single star positioning device and a method

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] In recent years, with the rapid development of navigation and positioning, electronic information, LBS industry and other technical fields, many new positioning equipment, technologies and methods have emerged. For example, currently cheap and miniaturized barometric altimeter chips, micro-gyroscope chips, pedometers and other sensors can already measure high-precision elevation values, angles, and step distances, and have been integrated into positioning terminals such as mobile phones Among them, participate in navigation and positioning functions. CPT (CoherentPopulationTrapping, imprisoned atomic clock or high-precision crystal oscillator) can reach better than 10 -10 Time-frequency stability, and the price can be controlled in the order of thousands of yuan. Therefore, CPT atomic clocks can already be equipped in some positioning terminal ...

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Abstract

The invention relates to a single star positioning device and a method. The single star positioning device comprises a user terminal and a satellite having a distance measurement function or a single signal resource. The user terminal is provided with an air pressure height measurement chip, an angle measurement part, a pedometer and a trapping atomic clock CPT. The method comprises steps of utilizing an air pressure height measurement chip and a satellite having a distance measurement function or a single base station or a single signal source to obtain an altitude value and a distance measurement value, determining the ring where the user is positioned through the intersection of two curve surfaces, using the angle measurement part to obtain the azimuth information which is constantly extrapolated and corrected based on a navigation position extrapolation theory, and constantly obtaining the three-dimension position coordinate of the user terminal. Different from the traditional GPS satellite system, the positioning theory of the invention gets rid of the limitation of four-star positioning, and can supplement the traditional GPS kind satellite positioning system when the quantity of the satellite is few. Besides, the method disclosed by the invention can also be used as an independent specific method to perform mobile phone positioning which is based on the position service, an ocean buoy, the steamship positioning and monitoring field.

Description

technical field [0001] The invention belongs to the field of navigation and positioning, and in particular relates to a single-satellite positioning and navigation device and method including miniature sensing and measuring devices. Background technique [0002] Various GNSS (Global Navigation Satellite System) represented by GPS (Global Positioning System, Global Positioning System), as the crystallization of modern science and technology, have brought great convenience and changes to people's life and work. However, the GPS satellite positioning system is not perfect, and there are still some obvious deficiencies in itself. From the perspective of surveying principles, GNSS adopts the principle of distance rendezvous based on pseudo-range measurement. It needs to observe more than 4 satellites to carry out three-dimensional positioning and navigation smoothly. Therefore, GNSS relies on a complete and reliable satellite constellation. This makes the construction and mainte...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/47
CPCG01S19/47
Inventor 施浒立刘成程涛
Owner 北京日月九天科技有限公司
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