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Miniature positioning, navigation and timing system

A positioning, navigation, and timing system technology, applied in the field of positioning, navigation, and timing, can solve problems such as SINS error accumulation, and achieve the effects of high robustness, high precision, and strong anti-interference

Active Publication Date: 2015-09-23
TSINGHUA UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The MEMS inertial measurement unit (MIMU) is consolidated on the carrier to form a strapdown inertial navigation system (SINS). However, SINS has the disadvantage of error accumulation

Method used

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  • Miniature positioning, navigation and timing system
  • Miniature positioning, navigation and timing system
  • Miniature positioning, navigation and timing system

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Embodiment Construction

[0027] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0028] The micro-positioning, navigation and timing system according to the embodiments of the present invention will be described below with reference to the accompanying drawings. The system 100 can be used to provide positioning, navigation and time information for moving vehicles such as missiles, aircraft, vehicles, people, and the like.

[0029] figure 1 It is a structural block diagram of a micro-positioning, navigation and timing system according to an embodiment of the present...

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Abstract

The invention provides a miniature positioning, navigation and timing system comprising a chip atomic clock, a micro inertial measurement unit and a global positioning system (GPS) software receiver. The chip atomic clock is used to provide a clock signal for the micro inertial measurement unit and the GPS software receiver, assist the GPS software receiver in navigation positioning operation, and perform correction according to a correction signal sent by the GPS software receiver. The micro inertial measurement unit is used to measure motion information of a measured target according to the clock signal, wherein the motion information includes acceleration and angular speed. The GPS software receiver is used to receive a positioning signal sent by a GPS and perform navigation positioning operation according to the positioning signal and the motion information of the measured target in order to obtain positioning, navigation and timing information. The system of the invention has the advantages of high robustness PNT service, high precision, and strong anti-interference performance.

Description

technical field [0001] The invention relates to the technical field of positioning, navigation and timing, in particular to a miniature positioning, navigation and timing system. Background technique [0002] Positioning, Navigation and Timing (PNT) is the key technology to describe time and space. With the development of the times, human beings rely on PNT more than any historical period. [0003] PNT technology serves the national economy, national security and military fields, and is a strategic symbol of comprehensive national strength and international status. The United States, Russia, the European Union and China have successively formulated national PNT development plans to establish and improve their own PNT systems. The military field is the most important application direction of PNT technology and the main source of power for PNT technology, driving the development of PNT technology. The battlefield subjects of PNT services include equipment (aircraft, ships, ...

Claims

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Application Information

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IPC IPC(8): G01S19/47G01S19/03
CPCG01S19/03G01S19/47
Inventor 尤政马林李滨周斌邢飞韩润奇郑伦贵
Owner TSINGHUA UNIV
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