Method for selecting hybrid positioning or timing mode of navigational satellite

A mode selection and mixed positioning technology, which is applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve the problem of high power consumption of the system

Active Publication Date: 2011-05-18
TECHTOTOP MICROELECTRONICS
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of relatively large power consumption of the system when

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  • Method for selecting hybrid positioning or timing mode of navigational satellite
  • Method for selecting hybrid positioning or timing mode of navigational satellite
  • Method for selecting hybrid positioning or timing mode of navigational satellite

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] Since the working mode of the radio frequency front end of this system can be configured to support the working mode of all current satellite navigation systems, take GPS and Beidou 2 generation satellite navigation system as an example, for example: the signal frequency of GPS navigation satellite is 1575.42MHz, Beidou 2 The signal frequency of the first-generation navigation satellite is 1561.098MHz, and the difference between their center frequencies is 15M, so the system receives the GPS and the second-generation Beidou satellite in the sky through the external antenna 1 (compatible type ...

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Abstract

The invention relates to a method for selecting the hybrid positioning or timing mode of a navigational satellite, comprising a satellite signal state determining step: obtaining the current satellite signal state of a satellite navigation system A or B by a system, a single satellite navigation system selecting step: selecting the single satellite navigation system A or B for positioning or timing if the single satellite navigation system A or B meets the positioning or timing requirement, and a hybrid satellite navigation system selecting step: selecting the hybrid positioning mode of the satellite navigation systems A and B by the system if the single satellite navigation system A or B does not meet the positioning or timing requirement. By adopting the method, the hybrid double-mode satellite navigation reception device can reduce the power consumption of the system as mush as possible when the hybrid double-mode satellite navigation reception device works normally. The invention is suitable for double-mode or multi-mode hybrid satellite navigation reception devices including a GPS and big dipper second-generation satellite navigation system.

Description

technical field [0001] The invention relates to a mode selection method for navigation satellite hybrid positioning or timing service. Background technique [0002] The navigation mode and timing module of the existing navigation system mostly only adopt the GPS mode, and the system navigation mode and timing mode are very single, and are quite dependent on the GPS satellite system. If the hybrid navigation timing mode is used, the dependence on a single navigation satellite system can be reduced. However, because the hybrid timing system includes multiple navigation system receiving modules, the power consumption of the system is relatively large when it works at the same time. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the system consumes a lot of power when it works simultaneously because the system includes multiple navigation system receiving modules. [0004] The present invention is achieved in this way: a ...

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Application Information

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IPC IPC(8): G01S19/33
Inventor 赵成能
Owner TECHTOTOP MICROELECTRONICS
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