CN103076617B - A kind of method utilizing the Big Dipper 2 generation satellite navigation system to be navigated - Google Patents
A kind of method utilizing the Big Dipper 2 generation satellite navigation system to be navigated Download PDFInfo
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- CN103076617B CN103076617B CN201110444302.4A CN201110444302A CN103076617B CN 103076617 B CN103076617 B CN 103076617B CN 201110444302 A CN201110444302 A CN 201110444302A CN 103076617 B CN103076617 B CN 103076617B
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Abstract
A kind of satellite navigation method, described method includes, and receives the navigation message in described satellite navigation system；Demodulate the signal integrity information of the described satellite navigation system comprised in described navigation message；Demodulate the signal integrity information of other satellite navigation system comprised in described navigation message；Utilizing described signal integrity information, satellite navigation system described in Selection utilization or one or more in other satellite navigation system described position。After adopting technical scheme, it is possible to effectively utilize the auxiliary information in BD2 GEO satellite to judge the integrity of GPS or Galileo system and to obtain difference information, to improve the performance of receiver。
Description
Technical field
The present invention relates to a kind of method utilizing the Big Dipper 2 generation satellite navigation system to be navigated。
Background technology
Development along with aeronautical satellite alignment system, the navigation positioning satellite system of oneself is all being developed in a lot of countries and regions, GPS(GlobalPositioningSystem such as the U.S., global positioning system) system, Galileo (Galileo) system in Europe, also have the Big Dipper 2 satellite navigation system BeiDou2(or BD2 or COMPASS2 of China) NavigationSatelliteSystem, etc.。In existing personal satellite navigation position receiver device, GPS or the Galileo signal that receiver search blindly is in the sky, not only extend the time of location, be also unfavorable for multisystem combined location。Therefore, if first passing through BD2GEO(GeostationaryOrbit, geostationary orbit) signal of satellite receives, and therefrom obtains integrity and the difference information of GPS and Galileo system, and this will reduce receiver non-productive work, be greatly saved the time of location。
Summary of the invention
It is an object of the invention to provide a kind of satellite navigation system, corresponding air navigation aid and receive device。
The present invention provides a kind of satellite navigation system, and the navigation information that described satellite system sends includes the signal integrity information of described satellite navigation system, and the navigation information that described satellite navigation system sends also includes the signal integrity information of other satellite navigation system。
Further, the navigation information that described satellite navigation system sends also includes the difference information of described satellite navigation system system and the difference information of other satellite navigation system described。
Further, described satellite navigation system is the Big Dipper 2 generation satellite navigation system, and other satellite navigation system described is GPS satellite navigation system and Galileo satellite navigation system。
Further, described navigation information is to be sent by the GEO satellite of the Big Dipper 2 generation satellite navigation system。
The present invention also provides for a kind of method that described satellite navigation system is navigated of applying, and described method includes, and receives the navigation message in described satellite navigation system；Demodulate the signal integrity information of the described satellite navigation system comprised in described navigation message；Demodulate the signal integrity information of other satellite navigation system comprised in described navigation message；Utilizing described signal integrity information, satellite navigation system described in Selection utilization or one or more in other satellite navigation system described position。
Further, described method includes, and described navigation message also includes the difference information of described satellite navigation system and the difference information of other satellite navigation system。
Further, described satellite navigation system is the Big Dipper 2 generation satellite navigation system, and other satellite navigation system described is GPS satellite navigation system and Galileo satellite navigation system。
Further, described navigation information is to be sent by the GEO satellite of the Big Dipper 2 generation satellite navigation system。
The present invention also provides for a kind of satellite navigation receiver including described method。
Further, described reception device includes the Big Dipper 2 generation satellite navigation system and receives unit, and GPS satellite navigation system receives unit or Galileo satellite navigation system receives unit。
After adopting technical scheme, it is possible to effectively utilize the auxiliary information in BD2GEO satellite to judge the integrity of GPS or Galileo system and to obtain difference information, to improve the performance of receiver。
Accompanying drawing explanation
Fig. 1 is operation of receiver flow chart。
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention。
In BD2 system, according to satellite type, carrier frequency point, I and Q branch road difference, corresponding navigation message comprises information content difference。Concrete as shown in table 1。
Table 1
Wherein, basic navigation information includes: this this navigation information of satellite-based；Whole satellite almanac；With other system time synchronization information。
Satellite Navigation Set, the auxiliary information in BD2GEO satellite navigation message can be passed through, including GPS integrity and difference information thereof and Galileo integrity and difference information thereof, realize the acquisition to GPS and Galileo system health and difference information, to improve stationkeeping ability。
Table 2 gives described auxiliary information category and broadcast feature。
Table 2。
Satellite-signal integrity characterizes with zone user range accuracy index RURAI, does not just adopt this satellite to position resolving to improve positioning precision when certain satellite RURAI value is more than 10。3 seconds RURAI update cycles, every satellite accounts for 4bit, RURAI scope from 0 ~ 15, and between the RURA of satellite, relation is as shown in table 3。
Table 3
Operation of receiver flow process is as shown in Figure 1。
In Fig. 1, first, step 1001, receiver is started working。
Step 1002, receiver starts to receive the navigation message of GEO satellite in BD2 system。
Step 1003, receiver demodulates integrity and the difference information of GPS/Galileo in GEO satellite navigation message。
Step 1004, receiver judges GPS integrity, if intact, then proceeds to step 1005, otherwise proceeds to step 1006.
Step 1005, if GPS is intact, then receives gps satellite signal for co-located。
Step 1006, receiver judges Galileo integrity, if intact, then proceeds to step 1007, otherwise proceeds to step 1008.
Step 1007, if Galileo is intact, then receives Galileo satellite signal for co-located。
Step 1008, utilizes BD2 and GPS/Galileo to carry out co-located。
Such scheme gives based on BD2, combines other two kinds of global position systems and carries out co-located, but is not limited to which。It can also according to signal integrity information, the satellite navigation system of one or more supports is arbitrarily selected to be navigated location from above-mentioned three kinds, such as GPS single mode location, Galileo single mode location, GPS and Galileo bimodulus location, BD2 and GPS dual-mode location, BD2, GPS and Galileo tri-mould location, etc.。
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention。
Claims (2)
1. utilizing the method that the Big Dipper 2 generation satellite navigation system is navigated, the navigation information that the GEO satellite of the described Big Dipper 2 generation satellite navigation system sends includes the signal integrity information of the described Big Dipper 2 generation satellite navigation system and the signal integrity information of other satellite navigation system；It is characterized in that, described method includes,
Step A, receives the navigation message in the GEO satellite of the described Big Dipper 2 generation satellite navigation system；
Step B, demodulates the signal integrity information of the described Big Dipper 2 generation satellite navigation system comprised in described navigation message, demodulates the signal integrity information of GPS satellite navigation system and the Galileo satellite navigation system comprised in described navigation message；
Step C, utilizes described signal integrity information, it is judged that whether the integrity information of described GPS satellite navigation system is intact, if so, receives the signal of described GPS satellite navigation system of correspondence for carrying out co-located with the described Big Dipper 2 generation satellite navigation system；If it is not, judge that whether the integrity information of described Galileo satellite navigation system is intact, if so, receive the signal of described Galileo satellite navigation system of correspondence for carrying out co-located with the described Big Dipper 2 generation satellite navigation system。
2. utilize the method that the Big Dipper 2 generation satellite navigation system is navigated as claimed in claim 1, it is characterized in that, described method includes, and described navigation message also includes the difference information of the described Big Dipper 2 generation satellite navigation system and the difference information of other satellite navigation system。
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| CN103076617B true CN103076617B (en) | 2016-06-22 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158716A (en) * | 2007-11-22 | 2008-04-09 | 北京航空航天大学 | Positioning and monitoring methods applied to satellite navigation system |
| CN101329393A (en) * | 2008-08-01 | 2008-12-24 | 北京北斗星通导航技术股份有限公司 | Big dipper / GPS double-module shipborne terminal and coordination scheduling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341249B1 (en) * | 1999-02-11 | 2002-01-22 | Guang Qian Xing | Autonomous unified on-board orbit and attitude control system for satellites |
| US6281836B1 (en) * | 1999-05-21 | 2001-08-28 | Trimble Navigation Ltd | Horizontal/vertical protection level adjustment scheme for RAIM with baro measurements |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158716A (en) * | 2007-11-22 | 2008-04-09 | 北京航空航天大学 | Positioning and monitoring methods applied to satellite navigation system |
| CN101329393A (en) * | 2008-08-01 | 2008-12-24 | 北京北斗星通导航技术股份有限公司 | Big dipper / GPS double-module shipborne terminal and coordination scheduling method thereof |
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Denomination of invention: A navigation method using Beidou generation 2 satellite navigation system Effective date of registration: 20220630 Granted publication date: 20160622 Pledgee: Societe Generale Bank Limited by Share Ltd. Guangzhou branch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2022980009607 |
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