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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, can solve problems such as satellite orbit estimation errors

Active Publication Date: 2013-12-04
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

The GNSS trajectory prediction method involves obtaining a satellite navigation message via a receiver (20) and then determining a propagating condition according to the obtained satellite navigation message. An input / output (I / O) interface (32) is used to obtain a satellite navigation message. The parameters of a satellite trajectory prediction model is estimated according to the propagating condition which is determined via a microprocessor (35). A set of satellite trajectory extension data is propagating by using the estimated satellite trajectory prediction model. An independent claim is also included for a GNSS trajectory prediction device.

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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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/13
CPCG01S19/27
Inventor 翁锦堂黄良吉
Owner MEDIATEK INC
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