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Method and apparatus for updating conversion information parameters

A parameter and group conversion technology, applied in the field of global satellite navigation system mechanism, which can solve problems such as satellite orbit estimation errors

Active Publication Date: 2012-02-08
MEDIATEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, after a period of time (for example, several years later), the group of conversion information parameters will gradually deviate from the originally set value, and once the validity period of the group of conversion information parameters has expired or its value is incorrect, it will Causes errors in satellite orbit estimates

Method used

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  • Method and apparatus for updating conversion information parameters
  • Method and apparatus for updating conversion information parameters

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Embodiment Construction

[0012] Certain terms are used throughout the description and claims to refer to particular components. It should be understood by those skilled in the art that 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 basis for distinction. The "comprising" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that the first device is coupled to the second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0013] see figure 1 , which shows a schematic diagr...

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Abstract

Provided are a method and an apparatus for updating conversion information parameters, used for updating a set of conversion information parameters applicable to the global satellite navigation system. The method for updating the conversion information parameters comprises the steps of obtaining at least one piece of satellite navigation information via one satellite and updating the conversion information parameters according to the obtained satellite navigation information. The method and apparatus of the invention can prolong the operating lifetime of the set of conversion information parameters and generate better satellite orbit forecasting result, thereby effectively shortening initial positioning time and improving the positioning precision.

Description

technical field [0001] The present invention relates to a global navigation satellite system (GNSS) mechanism, in particular to an update mechanism for a group of conversion information parameters used in data estimation of satellite orbits of the global navigation satellite system. Background technique [0002] For global satellite navigation receivers, one of the most important problems is how to speed up the time to first fix (Time To First Fix, TTFF). The time to first fix is ​​the time it takes for the global satellite navigation receiver to obtain enough available satellite signals and information to calculate a position, and the time to first fix can be accelerated by extending or estimating the satellite orbit (that is, extending or Estimated satellite orbit ephemeris) to achieve. Among them, U.S. Pat. No. 7,786,929, which was granted on August 31, 2010, has described the technical details of one or more embodiments of the system for estimating satellite orbits. Fo...

Claims

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Application Information

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IPC IPC(8): G01S19/13
CPCG01S19/27
Inventor 翁锦堂黄良吉
Owner MEDIATEK INC
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