CN106093971A - The Big Dipper and gps signal transducer - Google Patents
The Big Dipper and gps signal transducer Download PDFInfo
- Publication number
- CN106093971A CN106093971A CN201610618264.2A CN201610618264A CN106093971A CN 106093971 A CN106093971 A CN 106093971A CN 201610618264 A CN201610618264 A CN 201610618264A CN 106093971 A CN106093971 A CN 106093971A
- Authority
- CN
- China
- Prior art keywords
- signal
- beidou
- satellite
- gps
- unit
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- 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
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
Abstract
The invention discloses a kind of Big Dipper and gps signal transducer, will solve the technical problem that it is that GPS is applicable to Beidou II satellite navigation communication system.The Big Dipper of the present invention and gps signal transducer, it is provided with Beidou II satellite signal receiving unit, connect satellitosis converting unit and time reference signal generating unit, satellitosis converting unit connects navigation message signal generating unit and ranging code signal generating unit, time reference signal generating unit connects ranging code signal generating unit and carrier generation unit, and navigation message signal generating unit, ranging code signal generating unit and carrier generation unit connect RF generating unit through signal synthesis unit.The present invention is compared with prior art, Beidou II satellite signal receiving unit is utilized to obtain the positioning result of Beidou II satellite receiver position, speed, temporal information and satellite motion status information, be converted to the gps satellite signal of simulation, make GPS be applicable to Beidou II satellite navigation system.
Description
Technical field
The present invention relates to a kind of satellite communication equipment, particularly a kind of Beidou II satellite navigation system and global positioning system
The signal conversion equipment of system.
Background technology
From 2012 the end of the year Beidou II satellite navigation system formally put into application, the satellite navigation application of China obtains rapidly
Development, relates to the important industry of many of national product, the field such as including civil aviaton, logistics, telecommunications, traffic, finance, electric power.But mesh
Front global position system GPS receiver occupies most of navigation terminal equipment Market, uses the Big Dipper in all trades and professions
Secondary receiver device replaces GPS receiver device needs a very long transient process.In this process, turned by additional
Exchange device makes GPS communicate with the foundation of Beidou II satellite navigation system, and can only exist Beidou II navigation signal
Environment in normal work there is huge national defence be worth and economic worth.
Summary of the invention
It is an object of the invention to provide a kind of Big Dipper and gps signal transducer, will solve the technical problem that it is GPS
It is applicable to Beidou II satellite navigation communication system.
The present invention is by the following technical solutions: a kind of Big Dipper and gps signal transducer, is provided with Beidou II satellite-signal
Receiving unit, Beidou II satellite signal receiving unit connects satellitosis converting unit and time reference signal generating unit, satellite shape
State converting unit connects navigation message signal generating unit and ranging code signal generating unit, and time reference signal generating unit connects ranging code signal generating unit
And carrier generation unit, navigation message signal generating unit, ranging code signal generating unit and carrier generation unit connect through signal synthesis unit
RF generating unit.
The Beidou II satellite signal receiving unit of the present invention receive that Beidou II satellite sends continuously with the time and
Positional information, frequency be the satellite-signal of 1561.098MHz, from satellite-signal obtain Beidou II satellite satellite motion
Status information, calculates the distance of coordinate and the Beidou II satellite signal receiving unit obtaining Beidou II satellite, believes from satellite
In the reference time information obtained in number, one pulse signal of generation per second is as pulse per second (PPS), exports to satellitosis converting unit
The positioning result data of NMEA-0183 form, the Beidou II satellite motion status information data of NMEA-0183 form, Xiang Shi
Between benchmark signal generating unit output timing pps pulse per second signal.
The satellitosis converting unit of the present invention receives the positioning result of Beidou II satellite signal receiving unit output, north
Struggle against secondary satellite motion status information, calculates the Beidou II satellitosis under GPS scene, and navigation text signal generating unit exports
Beidou II satellitosis under GPS scene, the Beidou II under ranging code signal generating unit output positioning result and GPS scene
Satellitosis.
The time reference signal generating unit of the present invention receives the timing pulse per second (PPS) of Beidou II satellite signal receiving unit output
Signal, every millisecond generates repetition rate is 1kHz, and the dutycycle timed synchronization pulse signal less than 1%, to ranging code signal generating unit
Export with carrier generation unit.
The navigation message signal generating unit of the present invention receives the Big Dipper two under the GPS scene that the transmission of satellitosis converting unit comes
For satellitosis, generate the Beidou II satellite-signal navigation message under GPS scene, export to signal synthesis unit.
The ranging code signal generating unit of the present invention receives under the next positioning result of satellitosis converting unit transmission and GPS scene
Beidou II satellitosis, receive time reference signal generating unit transmission come timed synchronization pulse signal, at Timing Synchronization arteries and veins
Rush under the driving of signal, by the Beidou II satellitosis under positioning result and GPS scene, generate the Big Dipper two under GPS scene
For satellite ranging code signal, export to signal synthesis unit.
The carrier generation unit of the present invention receives the timed synchronization pulse signal of time reference signal generating unit, at Timing Synchronization
Under the driving of pulse signal, generate the Beidou II satellite sine wave carrier signal under GPS scene, defeated to signal synthesis unit
Go out.
The signal synthesis unit of the present invention uses the Beidou II satellite ranging code signal under GPS scene, to navigation message
Spread, use binary phase shift keying mode to modulate on sine wave carrier signal, and superposition Doppler frequency shift, generate
GPS intermediate-freuqncy signal, sends to RF generating unit.
The RF generating unit of the present invention receives GPS intermediate-freuqncy signal, is converted to 1575.24MHz, produces GPS radio-frequency signal,
It is sent to GPS.
The Beidou II satellite signal receiving unit of the present invention, navigation message signal generating unit, ranging code signal generating unit, carrier wave
Signal generating unit and signal synthesis unit use M300 GNSS type receiver, and satellitosis converting unit uses HG-USB30-B type
Very fast satellitosis change-over panel, time reference signal generating unit uses THTM-HCM2 type high precision clock synchronization module, and radio frequency occurs
Unit uses GNRF0302 GNSS type rf board.
The present invention compared with prior art, utilizes Beidou II satellite signal receiving unit to obtain Beidou II satellite reception
Positioning result, speed, temporal information and the satellite motion status information that seat in the plane is put, is converted to the gps satellite signal of simulation, makes
GPS is applicable to Beidou II satellite navigation system, and can be in the environment only existing Beidou II satellite navigation signals
There is normal ability to work.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention.
Fig. 2 is the input-output wave shape figure of the time reference signal generating unit of the present invention.
Detailed description of the invention
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.As it is shown in figure 1, the Big Dipper of the present invention
With gps signal transducer, Beidou II satellite signal receiving unit 101, satellitosis converting unit 102, time reference give birth to
Become unit 103, navigation message signal generating unit 104, ranging code signal generating unit 105, carrier generation unit 106, signal synthesis unit
107 and RF generating unit 108 form.
Beidou II satellite signal receiving unit 101 is positioned at the Beidou II in the overhead high-altitude of km more than 20,000 for receiving
Satellite (satellite) send continuously with time and positional information, frequency be that (satellite is believed for the radio signal of 1561.098MHz
Number).
From satellite-signal, parse the navigation message in signal obtain the satellite motion status information of Beidou II satellite.
Satellite motion status information is Beidou II Satellite system time, ephemeris, almanac, the corrected parameter of satellite clock, aeronautical satellite
Health status and ionospheric delay model parameter.
The coordinate obtaining Beidou II satellite is calculated with Beidou II satellite to observation station (Beidou II from satellite-signal
DVB, Beidou II satellite signal receiving unit 101) distance.
Calculate by below equation group (" GPS principle and application (second edition) " page 39, (beautiful) card Pulan, (beautiful) He Jiadi
Editing, bandit's bright red is translated, Electronic Industry Press, in August, 2012) calculating Beidou II satellite receiver position:
(1)
In formula (1), Xr、Yr、ZrFor Beidou II satellite signal receiving unit 101(receiver ECEF, ECEF coordinate system)
Three-dimensional location coordinates, Xi、Yi、ZiFor the three-dimensional location coordinates of Beidou II satellite,dTrFor receiver clock-offsets, riFor satellite
To the geometric distance of receiver, psriThe pseudorange recorded for receiver, i=1,2,3,4, c is the light velocity, TionoFor ionosphere delay by mistake
Difference, TtropFor tropospheric delay error, TrelavFor relative error,dTsvFor Beidou II satellite clock correction, RnoiseFor receiver
The range deviation that internal noise causes.
After obtaining the positioning result (positioning result, receiver coordinate) of this Beidou II satellite receiver position, from satellite
In the reference time information obtained in signal, one pulse signal of generation per second is as pulse per second (PPS).To satellitosis converting unit
102 output the positioning result data of NMEA-0183 form, the Beidou II satellite motion status information numbers of NMEA-0183 form
According to, to time reference signal generating unit 103 output timing pps pulse per second signal.
Satellitosis converting unit 102 receives the positioning result of Beidou II satellite signal receiving unit 101 output, the Big Dipper
Secondary satellite motion status information.Calculate the Beidou II satellitosis under GPS scene.Navigation text signal generating unit 104 is defeated
Go out the Beidou II satellitosis under GPS scene, export the north under positioning result and GPS scene to ranging code signal generating unit 105
Struggle against secondary satellitosis.
Time reference signal generating unit 103 receives the timing pulse per second (PPS) letter of Beidou II satellite signal receiving unit 101 output
Number, this signal is by one pulse signal of time reference generation per second, and every millisecond generates repetition rate simultaneously is 1kHz, dutycycle
Timed synchronization pulse signal less than 1%, signal type is square wave.To ranging code signal generating unit 105 and carrier generation unit 106
Output.As in figure 2 it is shown, time reference signal generating unit 103 receives the timing second of Beidou II satellite signal receiving unit 101 output
Pulse signal, compared with the timed synchronization pulse signal that time reference signal generating unit 103 produces, the time reference of receiver and north
The secondary satellite time that struggles against keeps strict consistent.
Navigation message signal generating unit 104 receives the Beidou II under the GPS scene that satellitosis converting unit 102 transmission comes
Satellitosis, the form specified according to GPS interface standard IS-GPS-200F generates the Beidou II satellite-signal under GPS scene
Navigation message, exports to signal synthesis unit 107.Beidou II satellite-signal navigation message under GPS scene connects for meeting GPS
The gps navigation message data of mouth standard IS-GPS-200F.
Ranging code signal generating unit 105 receives under the next positioning result of satellitosis converting unit 102 transmission and GPS scene
Beidou II satellitosis, receives the timed synchronization pulse signal that time reference signal generating unit 103 transmission comes.At Timing Synchronization arteries and veins
Rush under the driving of signal, by the Beidou II satellitosis under positioning result and GPS scene, according to GPS interface standard IS-GPS-
The form that 200F specifies, generates the Beidou II satellite ranging code signal under GPS scene, exports to signal synthesis unit 107.
Beidou II satellite ranging code signal under GPS scene is the Pseudo-Random Noise Code PRN that satellitosis converting unit 102 is specified
The GPS L1 carrier wave thick catch code L1 C/A code signal of (pseudo random noise code).
Carrier generation unit 106 receives the timed synchronization pulse signal of time reference signal generating unit 103, at Timing Synchronization arteries and veins
Rushing under the driving of signal, the form specified according to GPS interface standard IS-GPS-200F, the Beidou II generated under GPS scene is defended
Star carrier signal, exports to signal synthesis unit 107.Beidou II satellite carrier signal under GPS scene is sinusoidal wave sampling
Signal, frequency is 4.092MHz, and sample rate is 160MHz.
Signal synthesis unit 107 receives the Beidou II satellite under the GPS scene that navigation message signal generating unit 104 transmission comes
Signal navigation message (navigation message), the Beidou II satellite received under the GPS scene that ranging code signal generating unit 105 transmission comes is surveyed
Away from code signal, receive the Beidou II satellite carrier signal under the GPS scene that carrier generation unit 106 transmission comes.Use GPS field
Beidou II satellite ranging code signal under scape, spreads navigation message, uses binary phase shift keying BPSK mode to adjust
Make on the sine wave signal that carrier generation unit 106 produces, and superposition Doppler frequency shift, generate GPS intermediate-freuqncy signal, send extremely
RF generating unit 108.
RF generating unit 108 receives the GPS intermediate-freuqncy signal that signal synthesis unit 107 transmission comes, and is converted to
1575.24MHz, produces GPS radio-frequency signal, is sent to GPS.
In the present embodiment, Beidou II satellite signal receiving unit 101, navigation message signal generating unit 104, ranging code generate
Unit 105, carrier generation unit 106 and signal synthesis unit 107 use Shanghai ComNav Satellite Navigation Technology Co., Ltd.
M300 GNSS type receiver, satellitosis converting unit 102 uses Beijing Xing Yuan Beidou navigation technology Co., Ltd
HG-USB30-B type very fast satellitosis change-over panel, time reference signal generating unit 103 uses the Chengdu gold promise letter limited public affairs of high-tech
The THTM-HCM2 type high precision clock synchronization module of department, RF generating unit 108 uses Shanghai Yu Zhi telecom technology co., ltd
GNRF0302 GNSS type rf board.
Claims (10)
1. a Big Dipper and gps signal transducer, it is characterised in that: the described Big Dipper and gps signal transducer are provided with Beidou II
Satellite signal receiving unit (101), Beidou II satellite signal receiving unit (101) connect satellitosis converting unit (102) and
Time reference signal generating unit (103), satellitosis converting unit (102) connects navigation message signal generating unit (104) and ranging code is raw
Becoming unit (105), time reference signal generating unit (103) connects ranging code signal generating unit (105) and carrier generation unit (106), leads
Avionics literary composition signal generating unit (104), ranging code signal generating unit (105) and carrier generation unit (106) are through signal synthesis unit (107)
Connect RF generating unit (108).
The Big Dipper the most according to claim 1 and gps signal transducer, it is characterised in that: described Beidou II satellite-signal
Receive that unit (101) receives that Beidou II satellite sends continuously with time and positional information, frequency be 1561.098MHz
Satellite-signal, from satellite-signal obtain Beidou II satellite satellite motion status information, calculate obtain Beidou II defend
The coordinate of star and the distance of Beidou II satellite signal receiving unit (101), the reference time information obtained from satellite-signal
In one pulse signal of generation per second as pulse per second (PPS), to determining of satellitosis converting unit (102) output NMEA-0183 form
Position result data, the Beidou II satellite motion status information data of NMEA-0183 form, to time reference signal generating unit
(103) output timing pps pulse per second signal.
The Big Dipper the most according to claim 2 and gps signal transducer, it is characterised in that: described satellitosis converting unit
(102) positioning result, Beidou II satellite motion state letter that Beidou II satellite signal receiving unit (101) exports are received
Breath, calculates the Beidou II satellitosis under GPS scene, the Big Dipper under navigation text signal generating unit (104) output GPS scene
Secondary satellitosis, the Beidou II satellitosis under ranging code signal generating unit (105) output positioning result and GPS scene.
The Big Dipper the most according to claim 3 and gps signal transducer, it is characterised in that: described time reference signal generating unit
(103) receiving the timing pps pulse per second signal that Beidou II satellite signal receiving unit (101) exports, every millisecond generates repetition rate
For 1kHz, the dutycycle timed synchronization pulse signal less than 1%, to ranging code signal generating unit (105) and carrier generation unit
(106) output.
The Big Dipper the most according to claim 4 and gps signal transducer, it is characterised in that: described navigation message signal generating unit
(104) receive the Beidou II satellitosis under the GPS scene that satellitosis converting unit (102) transmission comes, generate GPS scene
Under Beidou II satellite-signal navigation message, to signal synthesis unit (107) export.
The Big Dipper the most according to claim 5 and gps signal transducer, it is characterised in that: described ranging code signal generating unit
(105) the Beidou II satellitosis under the next positioning result of satellitosis converting unit (102) transmission and GPS scene is received,
Receive the timed synchronization pulse signal that time reference signal generating unit (103) transmission comes, under the driving of timed synchronization pulse signal,
By the Beidou II satellitosis under positioning result and GPS scene, generate the Beidou II satellite ranging code letter under GPS scene
Number, export to signal synthesis unit (107).
The Big Dipper the most according to claim 6 and gps signal transducer, it is characterised in that: described carrier generation unit (106)
Receive the timed synchronization pulse signal of time reference signal generating unit (103), under the driving of timed synchronization pulse signal, generate
Beidou II satellite sine wave carrier signal under GPS scene, exports to signal synthesis unit (107).
The Big Dipper the most according to claim 7 and gps signal transducer, it is characterised in that: described signal synthesis unit (107)
Use the Beidou II satellite ranging code signal under GPS scene, navigation message is spread, use binary phase shift keying
(BPSK) mode is modulated on sine wave carrier signal, and superposition Doppler frequency shift, generates GPS intermediate-freuqncy signal, sends to radio frequency
Generating unit (108).
The Big Dipper the most according to claim 8 and gps signal transducer, it is characterised in that: described RF generating unit (108)
Receive GPS intermediate-freuqncy signal, be converted to 1575.24MHz, produce GPS radio-frequency signal, be sent to GPS.
The Big Dipper the most according to claim 9 and gps signal transducer, it is characterised in that: described Beidou II satellite-signal
Receive unit (101), navigation message signal generating unit (104), ranging code signal generating unit (105), carrier generation unit (106) and letter
Number comprehensive unit (107) uses M300 GNSS type receiver, and satellitosis converting unit (102) uses HG-USB30-B type pole
Speed satellitosis change-over panel, time reference signal generating unit (103) uses THTM-HCM2 type high precision clock synchronization module, radio frequency
Generating unit (108) uses GNRF0302 GNSS type rf board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610618264.2A CN106093971B (en) | 2016-08-01 | 2016-08-01 | Beidou and GPS signal converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610618264.2A CN106093971B (en) | 2016-08-01 | 2016-08-01 | Beidou and GPS signal converter |
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| Publication Number | Publication Date |
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| CN106093971A true CN106093971A (en) | 2016-11-09 |
| CN106093971B CN106093971B (en) | 2019-01-22 |
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| CN201610618264.2A Expired - Fee Related CN106093971B (en) | 2016-08-01 | 2016-08-01 | Beidou and GPS signal converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305568A (en) * | 2020-09-30 | 2021-02-02 | 北京空间飞行器总体设计部 | Method for testing consistency of ranging result of spacecraft and ranging reference change |
| CN113156464A (en) * | 2021-05-10 | 2021-07-23 | 深圳国人无线通信有限公司 | Synchronous time service conversion device and method |
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