CN106526621A - Satellite positioning receiving system capable of preventing real-time radio frequency cheating and method thereof - Google Patents
Satellite positioning receiving system capable of preventing real-time radio frequency cheating and method thereof Download PDFInfo
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- CN106526621A CN106526621A CN201611169336.6A CN201611169336A CN106526621A CN 106526621 A CN106526621 A CN 106526621A CN 201611169336 A CN201611169336 A CN 201611169336A CN 106526621 A CN106526621 A CN 106526621A
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- time
- satellite
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- radio frequency
- signal
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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
- G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
- G01S19/215—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service issues related to spoofing
-
- 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
- G01S19/33—Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a satellite positioning receiving system capable of preventing real-time radio frequency cheating and a method thereof and relates to the satellite navigation system field. The system comprises a positioning resolving module, a third party time module and a time contrast module. The positioning resolving module is configured to resolve a received satellite navigation positioning system signal into time information and position information. The third party time module is configured to provide the time information which is independent of the satellite navigation positioning system signal acquired by the positioning resolving module. The time contrast module is configured to compare the time information acquired by the positioning resolving module to the time information provided by the third party time module. According to a set threshold, whether the position information is trustable is determined and a trusted sign is output. The system and the method rely on a common satellite navigation positioning receiving machine and a time system of a third party system. Through comparing a time signal of navigation positioning and a third party system time signal, a real-time radio frequency cheating signal is detected so that a purpose of preventing cheating is achieved.
Description
Technical field
The present invention relates to satellite navigation system field, more particularly to a kind of satellite fix reception system of anti-real-time radio frequency deception
System and its method, for recognizing the presence of real-time radio frequency curve.
Background technology
Satellite navigation location receiver is capable of achieving unscreened any place, the positioning of any time.Satellite navigation is positioned
System includes the Big Dipper second generation satellite navigation and location system of China, the GPS global navigation satellite systems in the U.S., Russia
GLONASS satellite navigation and location system, the Galileo satellite navigation positioning system signal of European Union, and other regional satellites
Navigation positioning system signal.
Satellite navigation location receiver is easily subject to cheating for false satellite RF signal, does the positioning knot for making mistake
Really, location of mistake is reported to application system, cause the security system for relying on satellite fix to be cheated, produce security breaches.
A kind of perfect radio frequency deception measures are in strange land Real-time Collection aeronautical satellite radiofrequency signal, by real-time after quantization
Communicate and be sent to remote site, then revert to radiofrequency signal and be broadcasted, realize strange land Location fraud.This real time remote playback
Deception device, although cost is expensive, complicated technology realization, for the safety requirements of credible positioning, really constitutes deception.It is right
In the higher ranked occasion of safety requirements, the identification for this deception has meaning.
Therefore, those skilled in the art be devoted to the satellite fix reception system for developing a kind of anti-real-time radio frequency deception and
Its method, for recognizing the aeronautical satellite radio frequency curve of real-time forwarding.
The content of the invention
In view of the drawbacks described above of prior art, the technical problem to be solved is how to recognize forwarding in real time
Aeronautical satellite radio frequency curve.
For achieving the above object, the invention provides a kind of satellite fix reception system of anti-real-time radio frequency deception, including
Positioning calculation module, third party's time module and time contrast module, wherein, the positioning calculation module is configured to receive
To satellite navigation and location system signal calculate temporal information and positional information, third party's time module is configured to carry
For the temporal information with the satellite navigation and location system signal independence acquired in the positioning settlement module, the time contrasts mould
Block is configured to the positioning calculation module is resolved the time that the temporal information for obtaining is provided with third party's time module
Information is contrasted, and according to set threshold decision, whether positional information is credible, and exports fiducial mark.
Further, the satellite navigation and location system signal is that BDStar navigation system signal, GPS Global Satellites are led
Boat positioning system signal, GLONASS satellite navigation and location system signal, Galileo satellite navigation positioning system signal and area
One or more in domain property satellite navigation and location system signal.
Further, third party's time module is that satellite broadcast communication reception system or terrestrial broadcast communication receive system
System.
Further, the threshold value is 1 second.
Further, the fiducial mark is register value or level signal.
Present invention also offers a kind of method of the anti-real-time radio frequency deception for satellite fix reception system, including it is following
Step：
The satellite navigation and location system signal for receiving is calculated temporal information and position by step 1, positioning calculation module
Information；
Step 2, third party's time module are provided and the satellite navigation and location system letter acquired in the positioning settlement module
Number independent temporal information；
When the positioning calculation module is resolved the temporal information for obtaining with the third party by step 3, time contrast module
Between module provide temporal information contrast；
Step 4, whether the positional information according to set threshold decision is credible, and exports fiducial mark.
Further, the satellite navigation and location system signal is that BDStar navigation system signal, GPS Global Satellites are led
Boat positioning system signal, GLONASS satellite navigation and location system signal, Galileo satellite navigation positioning system signal and area
One or more in domain property satellite navigation and location system signal.
Further, third party's time module is that satellite broadcast communication reception system or terrestrial broadcast communication receive system
System.
Further, the threshold value is 1 second.
Further, the fiducial mark is register value or level signal.
The technical method of the anti-real-time radio frequency deception for satellite fix reception system of the present invention, the technical side
Case relies on a common satellite navigation location receiver, and the time system of Third party system, fixed by comparing navigation
The time signal of position and the contrast of Third party system time signal, detect real-time radio frequency curve, reach the mesh of anti-fraud
Mark.
The time system of normal satellite navigation signal, it is substantially aligned with UTC time.Radio frequency curve, Jing are forwarded in real time
Latitude coordinate normally can be resolved, and without vestige of playing tricks, but the time for resolving is alignd with the UTC time of primary signal.
Forwarding radio frequency curve, through RF acquisition, digital quantization, caches in real time, and real time remote communication sends, data
Receive, rebuild radiofrequency signal, send, each process step, be all introduced into time delay, particularly real time remote communication is passed through
Public communication network, time delay are fairly obvious.The special continuous reconstruction to ensure radiofrequency signal, needs data path continuously
Send and receive, general technology means need caching mechanism is set up when sending, and introduce obvious set-up delays.The comprehensive above because
Element, the time delayses of the general radio frequency curve of forwarding in real time reach more than 2 seconds.
NAVSTAR, in the presence of in real time forwarding radio frequency curve, the time signal for receiving will be with
The UTC time of primary signal produces obvious time migration.
Third party's time system, is typically also the UTC time synchronization realized by system-satellite position receiver device, then
Forwarded by satellite system or ground system, general this Forwarding Latency in a few tens of milliseconds between hundreds of millisecond, will not
More than 1 second.It is considered that third party's time system and UTC basic synchronizations, and will not be tampered.
Using third party's time system as the standard of time system, compare the time letter of satellite navigation position receiver system
Number, if the error of actual signal positioning, the time signal and third party's time system will be within 1 second, if in real time
The error of forwarding radio frequency curve positioning, the time signal and third party's time system will be beyond 1 second-time.Standard is judged with this
Then, the presence of forwarding radio frequency curve in real time can be identified, the target of anti-fraud is reached.
The technique effect of the design, concrete structure and generation of the present invention is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the technology of the present invention block schematic illustration of a preferred embodiment of the present invention；
Fig. 2 is the operating diagram of the reception normal satellite signal of a preferred embodiment of the present invention；
Fig. 3 is the operating diagram that the reception of a preferred embodiment of the present invention forwards radio frequency curve in real time；
Specific embodiment
Hereinafter the process framework of the present invention is elaborated：
As shown in figure 1, functional module 1 is satellite navigation positioning receiver portion, functional module 2 is the technology of the present invention framework
Third party's time system part, functional module 3 are time signal rating units, and functional module 3 will output positioning latitude and longitude coordinates
And positioning alarm signal.
When receiving normal navigation satellite-signal, work is as shown in Figure 2.Aeronautical satellite radiofrequency signal is through functional module 1, defeated
Go out and position latitude and longitude coordinates, time signal, while functional module 2 receives and produce third party's time signal, two time signals
Through the comparison of module 3, within credible locating threshold, illustrate now to position credible, output latitude and longitude coordinates and fiducial mark.
Fiducial mark can be register value or level signal.
When receiving falseness radiofrequency signal in real time, work is as shown in Figure 3.Aeronautical satellite radiofrequency signal is through functional module 1, defeated
Go out and position latitude and longitude coordinates, time signal, while functional module 2 receives and produce third party's time signal, two time signals
Through the comparison of module 3, beyond credible locating threshold, whole system positioning is sat in insincere positioning states, output longitude and latitude
Mark and insincere mark.
Credible locating threshold of the present invention, time difference are less than 1 second, it is believed that credible, more than 1 second, it is believed that insincere.
The preferred embodiment of the present invention described in detail above.It should be appreciated that the ordinary skill of this area is without the need for wound
The property made work just can make many modifications and variations with design of the invention.Therefore, all technical staff in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. the satellite fix reception system that a kind of anti-real-time radio frequency is cheated, it is characterised in that including positioning calculation module, third party
Time module and time contrast module, wherein, the positioning calculation module is configured to the satellite navigation for receiving positioning system
System signal calculates temporal information and positional information, and third party's time module is configured to supply and the positioning clearing mould
The temporal information of the satellite navigation and location system signal independence acquired in block, the time contrast module is configured to will be described fixed
The temporal information that the temporal information that resolving module resolving in position is obtained is provided with third party's time module is contrasted, according to set
Described in fixed threshold decision, whether positional information is credible, and exports fiducial mark.
2. the satellite fix reception system that anti-real-time radio frequency as claimed in claim 1 is cheated, it is characterised in that the satellite is led
Boat positioning system signal is BDStar navigation system signal, GPS global navigation satellite system signals, GLONASS satellite
In navigation positioning system signal, Galileo satellite navigation positioning system signal and regional satellite navigation and location system signal
One or more.
3. the satellite fix reception system that anti-real-time radio frequency as claimed in claim 1 is cheated, it is characterised in that the third party
Time module is satellite broadcast communication reception system or terrestrial broadcast communication reception system.
4. the satellite fix reception system of anti-real-time radio frequency deception as claimed in claim 1, it is characterised in that the threshold value is
1 second.
5. the satellite fix reception system of anti-real-time radio frequency deception as claimed in claim 1, it is characterised in that it is described can beacon
Will is register value or level signal.
6. a kind of method that anti-real-time radio frequency for satellite fix reception system is cheated, it is characterised in that comprise the following steps：
The satellite navigation and location system signal for receiving is calculated temporal information and positional information by step 1, positioning calculation module；
Step 2, third party's time module provide only with the satellite navigation and location system signal acquired in the positioning settlement module
Vertical temporal information；
The positioning calculation module is resolved the temporal information and third party's time mould for obtaining for step 3, time contrast module
The temporal information that block is provided is contrasted；
Step 4, whether the positional information according to set threshold decision is credible, and exports fiducial mark.
7. the method that the anti-real-time radio frequency for being used for satellite fix reception system as claimed in claim 6 is cheated, it is characterised in that
The satellite navigation and location system signal is BDStar navigation system signal, GPS global navigation satellite system signals, lattice
Luo Nasi satellite navigation and location system signals, Galileo satellite navigation positioning system signal and regional satellite navigation positioning system
One or more in system signal.
8. the method that the anti-real-time radio frequency for being used for satellite fix reception system as claimed in claim 6 is cheated, it is characterised in that
Third party's time module is satellite broadcast communication reception system or terrestrial broadcast communication reception system.
9. the method that the anti-real-time radio frequency for being used for satellite fix reception system as claimed in claim 6 is cheated, it is characterised in that
The threshold value is 1 second.
10. the method that the anti-real-time radio frequency for being used for satellite fix reception system as claimed in claim 6 is cheated, its feature exist
In the fiducial mark is register value or level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169336.6A CN106526621A (en) | 2016-12-16 | 2016-12-16 | Satellite positioning receiving system capable of preventing real-time radio frequency cheating and method thereof |
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| CN201611169336.6A CN106526621A (en) | 2016-12-16 | 2016-12-16 | Satellite positioning receiving system capable of preventing real-time radio frequency cheating and method thereof |
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| CN201611169336.6A Pending CN106526621A (en) | 2016-12-16 | 2016-12-16 | Satellite positioning receiving system capable of preventing real-time radio frequency cheating and method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107861135A (en) * | 2017-10-26 | 2018-03-30 | 国家电网公司 | A kind of unmanned plane satellite navigation cheat detecting method towards electric inspection process |
| CN109581426A (en) * | 2019-02-18 | 2019-04-05 | 帆美航空科技(北京)有限公司 | A kind of method, system, equipment and storage medium identifying GNSS abnormal signal |
| CN114428261A (en) * | 2022-01-26 | 2022-05-03 | 沈阳安信合科技有限公司 | Detection method and detection device for satellite time synchronization device cheating attack |
| CN116009379A (en) * | 2023-03-28 | 2023-04-25 | 深圳市天辰防务通信技术有限公司 | Time system equipment system control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861135A (en) * | 2017-10-26 | 2018-03-30 | 国家电网公司 | A kind of unmanned plane satellite navigation cheat detecting method towards electric inspection process |
| CN107861135B (en) * | 2017-10-26 | 2021-06-11 | 国家电网公司 | Unmanned aerial vehicle satellite navigation deception detection method for power inspection |
| CN109581426A (en) * | 2019-02-18 | 2019-04-05 | 帆美航空科技(北京)有限公司 | A kind of method, system, equipment and storage medium identifying GNSS abnormal signal |
| CN114428261A (en) * | 2022-01-26 | 2022-05-03 | 沈阳安信合科技有限公司 | Detection method and detection device for satellite time synchronization device cheating attack |
| CN116009379A (en) * | 2023-03-28 | 2023-04-25 | 深圳市天辰防务通信技术有限公司 | Time system equipment system control method |
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Application publication date: 20170322 |
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