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A method and apparatus for capturing satellite groups

A satellite group and satellite technology, applied in the field of capturing satellite groups, can solve the problems of prolonged satellite group time, reduced satellite positioning efficiency, long time for first positioning, etc.

Active Publication Date: 2016-11-30
ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the long extension of the non-coherent integration time improves the sensitivity of the satellite group acquisition method, the time used to acquire the satellite group is also prolonged, and at the same time, the time to use the captured satellite group to achieve the first positioning will also become longer. Long, reducing the efficiency of satellite positioning

Method used

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  • A method and apparatus for capturing satellite groups
  • A method and apparatus for capturing satellite groups
  • A method and apparatus for capturing satellite groups

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] refer to figure 1 , figure 1 It is a flow chart of Embodiment 1 of a method for capturing a satellite group provided by the present invention. The method of this embodiment may specifically include:

[0055] Step 101. Obtain a satellite list, where the satellite list includes a satellite star number, and the satellite star number is used to uniquely identify a satellite.

[0056] In this embodiment, the satellite star number is used to uniquely identify the satellite, and the satellite group is searched and captured according to the star number of the satellite. Before capturing the satellite group, the satellite star number of the satellite to be captured is first saved in a list, and this list That's the list of satellites. The finally captured satellite group of the present invention is composed of several satellites or all satellites in the preset satellite list.

[0057] In addition, the satellites saved in the satellite list can be all 32 GPS satellites, or som...

Embodiment 2

[0080] refer to figure 2 , figure 2 It is a flow chart of Embodiment 2 of a method for capturing a satellite group provided by the present invention. The method of this embodiment may specifically include:

[0081] Step 201. Acquire a satellite list, where the satellite list includes a satellite star number, and the satellite star number is used to uniquely identify a satellite.

[0082] Step 202, setting coherent integration time.

[0083] Step 203. Acquire a first satellite group in the satellite list according to the coherent integration time, where the first satellite group includes a natural number of satellite stars in the satellite list.

[0084] Step 204, determining satellites in the satellite list other than the first satellite group as sub-lists of the first satellite list.

[0085] Since steps 201 to 204 are the same as steps 101 to 104 in the first embodiment, the specific explanations of steps 101 to 104 in the first embodiment can be referred to, and detail...

Embodiment 3

[0104] refer to image 3 , image 3 It is a structural diagram of Embodiment 3 of a device for capturing a satellite group provided by the present invention. The device of this embodiment may specifically include:

[0105] The first acquisition module 301 is configured to acquire a satellite list, the satellite list includes a satellite star number, and the satellite star number is used to uniquely identify a satellite;

[0106] The first setting module 302 is used to set the coherent integration time;

[0107] The second acquiring module 303 is configured to acquire a first satellite group in the satellite list according to the coherent integration time, where the first satellite group includes a natural number of satellite stars in the satellite list;

[0108] The first determination module 304 is configured to determine that the satellites in the satellite list other than the first satellite group are the first satellite list sub-list;

[0109] The third acquisition modu...

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PUM

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Abstract

The present invention provides a method and device for capturing a satellite group. The method includes: obtaining a satellite list, the satellite list includes a satellite star number, and the satellite star number is used to uniquely identify a satellite; setting a coherent integration time, according to the The coherent integration time, obtain the first satellite group in the satellite list, the first satellite group includes a natural number of satellite asterisks in the satellite list; determine the satellite list except the first satellite group The outer satellites are the first satellite list sub-table; according to the preset first non-coherent integration time and the coherent integration time, obtain the second satellite group in the first satellite list sub-table, the second satellite group Including a number of natural satellite star numbers in the satellite list; determining the first satellite group and the second satellite group as captured satellite groups. The invention takes a short time to acquire the satellite group, and improves the efficiency of realizing positioning by using the captured satellites.

Description

technical field [0001] The invention relates to the technical field of satellite positioning, in particular to a method and device for capturing a satellite group. Background technique [0002] In the field of satellite positioning technology, when the GPS receiver captures four or more satellites in the satellite list, the captured satellites are formed into a satellite group for accurate positioning of the satellites. However, due to the influence of occlusion, etc., the satellite signal received by the GPS receiver is sometimes weak. To realize the positioning of satellites, the sensitivity of the method of capturing satellite groups has to be improved. [0003] In the prior art, improving the sensitivity of the satellite group acquisition method is usually achieved by extending the coherent integration time and the non-coherent integration time. Since the coherent integration will be affected by the transition of the navigation bit, this limits the extension of the coh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/24
Inventor 杨崇艳雷伟伟胡胜发
Owner ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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