CN102565815A - Clock-shared satellite positioning signal receiving unit - Google Patents
Clock-shared satellite positioning signal receiving unit Download PDFInfo
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- CN102565815A CN102565815A CN2010105863860A CN201010586386A CN102565815A CN 102565815 A CN102565815 A CN 102565815A CN 2010105863860 A CN2010105863860 A CN 2010105863860A CN 201010586386 A CN201010586386 A CN 201010586386A CN 102565815 A CN102565815 A CN 102565815A
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- clock
- satellite positioning
- positioning signal
- receiving unit
- receiver
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Abstract
The invention discloses a clock-shared satellite positioning signal receiving unit and aims to provide a satellite positioning and receiving unit which has the advantages of simple structure, convenience in operation and improved positioning precision. The clock-shared satellite positioning signal receiving unit comprises a plurality of receivers, a plurality of signal wires and a clock, wherein a clock port of each satellite positioning signal receiver is connected with the same clock through a respective signal transmission wire. The clock-shared satellite positioning signal receiving unit disclosed by the invention is applicable to satellite positioning of vehicles, ships, aircrafts and the like in need of determining positions and postures. Compared with the conventional receiving unit in which each receiver performs timing individually, the unit provided by the invention has the advantages that the error is effectively reduced and the posture error is obviously reduced.
Description
Technical field
The present invention relates to a kind of satellite positioning signal and receive unit, in particular, the satellite positioning signal that it relates to a kind of shared same clock log time receives unit.
Background technology
At present; The satellite positioning signal receiver (hereinafter to be referred as: receiver) in the application of group; For example utilize to receive unit measurement position angle, measure the car attitude, measure aircraft attitude and measure attitude of ship etc.; All be to utilize the clock that each receiver carries to participate in calculating, eliminate the influence that the clock jitter of each receiver brings measurement result through the method for calculating receiver clock correction.But because the error that exists in calculating causes measurement result not accurate enough.Up to the present, accept in the application of unit, do not see as yet to eliminate because of each clock differences and accept unit what measurement result exerted an influence through shared clock.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of simple in structure, be easy to processing and manufacturing, measuring error little accept unit.
The unit of accepting of the present invention comprises the satellite signal receiver more than 2 or 2, some bars transmission lines and a clock composition, and each receiver is connected on the clock through signal transmssion line.
Described clock can be placed in wherein on the satellite signal receiver, also can independently settle.
But described each receiver clock, clock that also can all or part of dismounting self.
Described all signal transmssion lines, its signal transmission time can know directly or indirectly that perhaps the transmission time difference between each transmission line can directly or indirectly be known.
The invention has the beneficial effects as follows: the data of same all receivers of clock log are used in (1), and participate in location Calculation, have increased the correlated condition of compensating computation; (2) in the compensating computation of location model, reduced n-1 (n is the receiver number) receiver clock correction unknown number, therefore improved the accuracy of attitude determination of accepting unit.
Description of drawings
Fig. 1 is that common clock receives unit embodiment 1 structural representation;
Fig. 2 is that common clock receives unit embodiment 2 structural representations;
Fig. 3 is that common clock receives unit embodiment 3 structural representations;
Fig. 4 is that common clock receives unit embodiment 4 structural representations.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done and to describe in further detail:
In the embodiment 1 shown in Figure 1, satellite-signal receiver (being called for short " receiver ") 1,2 ..., n through signal transmssion line (be called for short " signal wire ") 1,2 ..., n is connected with same clock.Clock should be selected for use and receiver same precision or high accuracy clock more; Each receiver removes or cuts out own clock; The one way transmission time spent Δ T1 that each signal wire is corresponding, Δ T2 ..., Δ Tn can directly obtain through apparatus measures, perhaps through measuring length, obtains divided by indirect methods such as transmission speeds.When operation of receiver, the moment of each epoch of its record all deducts the one way transmission time spent of corresponding signal line.
In the embodiment 2 shown in Figure 2, be the situation of not removing or closing the own clock of receiver, all the other are identical with embodiment 1.When operation of receiver, the moment of each epoch of its record is by being provided by own clock and common clock respectively, and two kinds of results' that calculated constantly by two clocks difference can embody the effect of common clock DVB group.
In the embodiment 3 shown in Figure 3, have clock by oneself as common clock with the some receivers that receive in the unit, all the other are identical with embodiment 1.Being equivalent to its respective signal line one way transmission time spent is 0, and effect and embodiment 1 are as good as.
In the embodiment 4 shown in Figure 4, have clock by oneself as common clock with the some receivers that receive in the unit, all the other are identical with embodiment 2.Being equivalent to its respective signal line one way transmission time spent is 0, and effect and embodiment 2 are as good as.
Claims (8)
1. a satellite positioning signal receives unit; Form by 2 or 2 above satellite positioning signal receivers and some bars transmission lines; It is characterized in that the clock interface of described each satellite positioning signal receiver is connected on the same clock through each signal transmssion line.
2. satellite positioning signal according to claim 1 receives unit, it is characterized in that the data transmission period of described each signal transmssion line is known.
3. satellite positioning signal according to claim 1 receives unit, it is characterized in that the transmission time of described each signal transmssion line can be known indirectly.
4. satellite positioning signal according to claim 1 receives unit, it is characterized in that described clock is placed on certain satellite signal receiver.
5. satellite positioning signal according to claim 1 receives unit, it is characterized in that, described clock is independent the arrangement.
6. satellite positioning signal according to claim 1 receives unit, it is characterized in that, described whole satellite positioning signal receivers are that own clock is installed.
7. satellite positioning signal according to claim 1 receives unit, it is characterized in that, described whole satellite positioning signal receivers are that own clock is not installed.
8. satellite positioning signal according to claim 1 receives unit, it is characterized in that, described part satellite positioning signal receiver is that own clock is not installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105863860A CN102565815A (en) | 2010-12-13 | 2010-12-13 | Clock-shared satellite positioning signal receiving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105863860A CN102565815A (en) | 2010-12-13 | 2010-12-13 | Clock-shared satellite positioning signal receiving unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102565815A true CN102565815A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010105863860A Pending CN102565815A (en) | 2010-12-13 | 2010-12-13 | Clock-shared satellite positioning signal receiving unit |
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| CN (1) | CN102565815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267409A (en) * | 2014-10-08 | 2015-01-07 | 中国电子科技集团公司第五十四研究所 | Clock homology Beidou/GPS aviation augmentation system based on analog light transmission |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043253A (en) * | 2006-06-26 | 2007-09-26 | 华为技术有限公司 | Process for obtaining high-precision time |
| WO2009055931A1 (en) * | 2007-11-02 | 2009-05-07 | Novatel Inc. | System and method for distributing time and frequency over a network |
| CN101442375A (en) * | 2008-12-29 | 2009-05-27 | 山东大学 | Time distribution service apparatus compatible with multiple networks and working method thereof |
| CN101646230A (en) * | 2008-08-08 | 2010-02-10 | 华为技术有限公司 | Method and terminal for synchronizing system time in user plane location |
-
2010
- 2010-12-13 CN CN2010105863860A patent/CN102565815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043253A (en) * | 2006-06-26 | 2007-09-26 | 华为技术有限公司 | Process for obtaining high-precision time |
| WO2009055931A1 (en) * | 2007-11-02 | 2009-05-07 | Novatel Inc. | System and method for distributing time and frequency over a network |
| CN101646230A (en) * | 2008-08-08 | 2010-02-10 | 华为技术有限公司 | Method and terminal for synchronizing system time in user plane location |
| CN101442375A (en) * | 2008-12-29 | 2009-05-27 | 山东大学 | Time distribution service apparatus compatible with multiple networks and working method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267409A (en) * | 2014-10-08 | 2015-01-07 | 中国电子科技集团公司第五十四研究所 | Clock homology Beidou/GPS aviation augmentation system based on analog light transmission |
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Addressee: Zhong Shuming Document name: Notification of Publication of the Application for Invention |
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| DD01 | Delivery of document by public notice |
Addressee: Zhong Shuming Document name: Notification of before Expiration of Request of Examination as to Substance |
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| C10 | Entry into substantive examination | ||
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Address after: 116000 Liaoning Province, Dalian City High-tech Park Dong Yuan Qingxin (Harvard image area) 11 unit 2, room 1003 Applicant after: Zhong Shuming Address before: 116000, room 84, 3-302 Yue Ling Street, Ganjingzi District, Liaoning, Dalian Applicant before: Zhong Shuming |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120711 |