CN107192977A - A kind of satellite direction-finding method based on Big Dipper double frequency - Google Patents
A kind of satellite direction-finding method based on Big Dipper double frequency Download PDFInfo
- Publication number
- CN107192977A CN107192977A CN201710379273.5A CN201710379273A CN107192977A CN 107192977 A CN107192977 A CN 107192977A CN 201710379273 A CN201710379273 A CN 201710379273A CN 107192977 A CN107192977 A CN 107192977A
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- Prior art keywords
- frequency
- satellite
- double
- big
- integer ambiguity
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/43—Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry
- G01S19/44—Carrier phase ambiguity resolution; Floating ambiguity; LAMBDA [Least-squares AMBiguity Decorrelation Adjustment] method
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
B1 and B3 frequency signal characteristics are broadcast simultaneously the invention discloses a kind of satellite direction-finding method based on Big Dipper double frequency, including big-dipper satellite, the double difference direction finding equation construction of big-dipper satellite is determined；Signal receiver receives B1 the and B3 frequency signals of the big-dipper satellite, and it is tracked simultaneously；The frequency signal received is entered into the secondary construction of line frequency, wide lane signal is obtained；Using fuzzy algorithmic approach step by step and greedy search algorithm, and double difference direction finding equation construction is combined, calculate the double difference integer ambiguity of each corresponding satellite of multiple wide lane signals；Obscured step by step by double difference integer ambiguity and calculate single B1, list B3 and the narrow lane signal integer ambiguity of double frequency；Obtain direction finding result.The present invention replaces single-frequency to carry out direction finding resolving using double frequency, while tracking B1 and B3 frequency satellite-signals, constructs wide lane frequency, the integer ambiguity in the wide lane of double frequency is first calculated again, obscure out the integer ambiguity of B1 single-frequency, B3 single-frequency and the narrow lane of double frequency step by step again, be finally reached direction finding result.
Description
Technical field
The present invention relates to navigation direction-finding method, more particularly to a kind of satellite direction-finding method based on Big Dipper double frequency.
Background technology
Single-frequency point being used existing Big Dipper direction finding class product, using double-antenna structure, while capturing B1 the or B3 frequency Big Dippeves more
Satellite-signal, by parsing present satellites orientation, the information such as carrier phase, construction direction finding resolves equation, many in direction finding resolving
Use least square method or LAMBDA and its derivative algorithm carries out the resolving of integer ambiguity, the algorithm is by constructing mesh
Scalar functions, and resolving makes the object function reach that the mode of minimum value is resolved, due to the reasons such as signal distortion, actual search
Optimal solution in scope, is frequently not that the probability correctly solved is larger, meanwhile, construct the object function needs amount of redundant data compared with
Greatly, it is that a direction finding correct probability is low, longer main cause the time required to a direction finding.
The content of the invention
The purpose of the present invention is that provides a kind of satellite direction finding side based on Big Dipper double frequency to solve the above problems
Method.
The present invention is achieved through the following technical solutions above-mentioned purpose：
1st, a kind of satellite direction-finding method based on Big Dipper double frequency, it is characterised in that comprise the following steps：
(1) big-dipper satellite broadcasts B1 and B3 frequency signal characteristics simultaneously, determines the double difference direction finding equation construction of big-dipper satellite；
(2) signal receiver receives B1 the and B3 frequency signals of the big-dipper satellite simultaneously, and it is tracked；
(3) the frequency signal received is entered into the secondary construction of line frequency, obtains wide lane signal；
(4) using the combination of fuzzy algorithmic approach and greedy search algorithm step by step, and double difference direction finding equation construction is combined, calculated many
The double difference integer ambiguity of each corresponding satellite of Ge Kuan lanes signal；
(5) obscured step by step by double difference integer ambiguity and calculate single B1 frequencies integer ambiguity, list B3 frequency complete cycle moulds
The narrow lane signal integer ambiguity of double frequency of paste degree and each satellite；
(6) direction finding result is obtained.
The beneficial effects of the present invention are：
A kind of satellite direction-finding method based on Big Dipper double frequency of the present invention replaces single-frequency to carry out direction finding resolving using double frequency, passes through
Satellite Tracking passage is doubled, while tracking B1 and B3 frequency satellite-signals, the same satellite traced into is entered into line frequency two
Secondary construction, constructs wide lane frequency, then first calculates the integer ambiguity in the wide lane of double frequency, then obscures out B1 single-frequency step by step, and B3 is mono-
Frequency and the integer ambiguity in the narrow lane of double frequency, are finally reached direction finding result.
Brief description of the drawings
Fig. 1 is a kind of particular flow sheet of satellite direction-finding method based on Big Dipper double frequency of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of satellite direction-finding method idiographic flow based on Big Dipper double frequency of the present invention is as follows：
After direction-finding device positioning, B1 and B3 frequency point data signals are gathered, and determine the double difference direction finding equation of the satellite, and root
Wide lane direction-finding signal is obtained according to the data-signal received, wide lane direction-finding signal is confirmed, confirmation is unsuccessful, obtains again
Qu Kuan lanes side signal, by the combination of fuzzy algorithmic approach step by step and greedy search algorithm after confirming successfully, and combines double difference direction finding
Equation construction is resolved, and resolves the unsuccessful wide lane direction-finding signal of then reacquisition, list B1 frequency complete cycles are obtained after resolving successfully
Fuzziness and list B3 frequency integer ambiguities, and judge whether to resolve successfully, resolve unsuccessful then reacquisition list B1 frequencies whole
All fuzzinesses and list B3 frequency integer ambiguities, then obtain the integer ambiguity in the narrow lane of double frequency, so as to be surveyed after resolving successfully
To information.
Technical scheme is not limited to the limitation of above-mentioned specific embodiment, and every technique according to the invention scheme is done
The technology deformation gone out, each falls within protection scope of the present invention.
Claims (1)
1. a kind of satellite direction-finding method based on Big Dipper double frequency, it is characterised in that comprise the following steps：
(1) big-dipper satellite broadcasts B1 and B3 frequency signal characteristics simultaneously, determines the double difference direction finding equation construction of big-dipper satellite；
(2) signal receiver receives B1 the and B3 frequency signals of the big-dipper satellite simultaneously, and it is tracked；
(3) the frequency signal received is entered into the secondary construction of line frequency, obtains wide lane direction-finding signal；
(4) using the combination of fuzzy algorithmic approach and greedy search algorithm step by step, and double difference direction finding equation construction is combined, calculates multiple width
The double difference integer ambiguity of each corresponding satellite of lane signal；
(5) obscured step by step by double difference integer ambiguity and calculate single B1 frequencies integer ambiguity, list B3 frequency integer ambiguities
With the narrow lane signal integer ambiguity of double frequency of each satellite；
(6) direction finding result is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379273.5A CN107192977A (en) | 2017-05-25 | 2017-05-25 | A kind of satellite direction-finding method based on Big Dipper double frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710379273.5A CN107192977A (en) | 2017-05-25 | 2017-05-25 | A kind of satellite direction-finding method based on Big Dipper double frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107192977A true CN107192977A (en) | 2017-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710379273.5A Pending CN107192977A (en) | 2017-05-25 | 2017-05-25 | A kind of satellite direction-finding method based on Big Dipper double frequency |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650694A (en) * | 2011-02-25 | 2012-08-29 | 中国人民解放军61081部队 | Medium-long baseline ambiguity resolution method based on BeiDou four-frequency signal |
| CN103675874A (en) * | 2013-12-20 | 2014-03-26 | 北京遥测技术研究所 | Method for determining whole-cycle ambiguity of three-frequency carrier phase of BeiDou navigation system |
| CN103675835A (en) * | 2013-12-04 | 2014-03-26 | 航天恒星科技有限公司 | Beidou three-frequency signal carrier phase whole cycle ambiguity single epoch determining method |
| CN104898144A (en) * | 2015-06-09 | 2015-09-09 | 辽宁工程技术大学 | Whole-cycle ambiguity single epoch determining method for Beidou system reference station |
| CN105353393A (en) * | 2015-10-22 | 2016-02-24 | 北京理工大学 | Method for fixing whole cycle ambiguity of double-frequency carrier phase |
-
2017
- 2017-05-25 CN CN201710379273.5A patent/CN107192977A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650694A (en) * | 2011-02-25 | 2012-08-29 | 中国人民解放军61081部队 | Medium-long baseline ambiguity resolution method based on BeiDou four-frequency signal |
| CN103675835A (en) * | 2013-12-04 | 2014-03-26 | 航天恒星科技有限公司 | Beidou three-frequency signal carrier phase whole cycle ambiguity single epoch determining method |
| CN103675874A (en) * | 2013-12-20 | 2014-03-26 | 北京遥测技术研究所 | Method for determining whole-cycle ambiguity of three-frequency carrier phase of BeiDou navigation system |
| CN104898144A (en) * | 2015-06-09 | 2015-09-09 | 辽宁工程技术大学 | Whole-cycle ambiguity single epoch determining method for Beidou system reference station |
| CN105353393A (en) * | 2015-10-22 | 2016-02-24 | 北京理工大学 | Method for fixing whole cycle ambiguity of double-frequency carrier phase |
Non-Patent Citations (3)
| Title |
|---|
| 戴金林: "基于北斗II双频载体姿态测量系统的软件设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 祝会忠: "《长距离单历元非差GNSS网络RTK理论与算法》", 30 June 2014, 北京：测绘出版社 * |
| 赵剡 等: "《高精度卫星导航技术》", 30 April 2016 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
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| RJ01 | Rejection of invention patent application after publication |