CN113466893A - Civil aircraft GPS signal interference real-time analysis alarm method, electronic device, storage medium and program product - Google Patents
Civil aircraft GPS signal interference real-time analysis alarm method, electronic device, storage medium and program product Download PDFInfo
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- CN113466893A CN113466893A CN202110557869.6A CN202110557869A CN113466893A CN 113466893 A CN113466893 A CN 113466893A CN 202110557869 A CN202110557869 A CN 202110557869A CN 113466893 A CN113466893 A CN 113466893A
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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
- G01S19/015—Arrangements for jamming, spoofing or other methods of denial of service of such systems
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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
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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
- G01S19/38—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
- G01S19/52—Determining velocity
Abstract
The invention provides a civil aircraft GPS signal interference real-time analysis and alarm method, which comprises the following steps: sequentially receiving the airborne track information of the same aircraft according to the time sequence; receiving the position information of the current track point; calculating the speed, and calculating the speed and the direction of the first track point; comparing the speed and the direction of the two track points, and if the difference value of the speed and the direction is not a threshold value, skipping to the step of receiving the position information; if the difference value of the speed or the direction exceeds the threshold value, judging whether the flight is in the GPS interfered state, if so, identifying that the flight GPS interfered state is finished, otherwise, identifying that the flight GPS interfered state is started. The invention relates to an electronic device, a storage medium, and a program product. The invention inspects and determines the time and the position of the aircraft when the GPS interference happens by analyzing the characteristics and the rules in the airborne track data in real time, can quickly respond when the GPS interference just happens, immediately starts the cleaning and processing work on the ground interference source, and recovers the normal operation of the flight as soon as possible.
Description
Technical Field
The invention relates to the technical field of GPS signal interference analysis and investigation, in particular to a civil aircraft GPS signal interference real-time analysis and alarm method, electronic equipment, a storage medium and a program product.
Background
At present, the communication technology is rapidly developed, and the popularization and development of the radio communication technology bring much convenience to the society. However, many radio stations are also in use, which are not approved and approved by the relevant departments, and some radio lovers have privately assembled stations, radio signal disruptors for various personal purposes, and the like, which are all transmitting radio signals. If a civil aircraft passes near such a source of interference during flight, various radios used on the aircraft may be disturbed, thereby affecting the normal safe operation of the aircraft.
The radio signals of civil aircrafts are interfered more prominently, and the GPS signals are interfered, so that the GPS signals are lost. The GPS is a short name of a global positioning system, the GPS navigation system is one of navigation sources used by civil aircrafts, and the system acquires the real-time position of the aircrafts by means of GPS signals, so that the aircrafts are guided to finish a navigation task from a certain point to a certain point. The interference of the GPS signal can affect the normal operation of the GPS navigation system, thereby affecting the safe operation of the civil aircraft. According to incomplete statistics, in 2019, in 7 months, 10 months, 11 months and 12 months, more concentrated flight units occur in Guangzhou local areas and Hainan areas to report GPS abnormal conditions. In the south-middle part of the 2019 year, there are 250 flight reports that are subject to GPS interference. The problem of GPS interference greatly influences flight safety and flight normality, and according to incomplete statistics, only 12 months in 2019, the GPS interference causes the 3 rd shift of a cloud airport to go back to the flight and the 2 nd shift of the cloud airport to stop approaching.
Airborne GPS signal interference occurs very frequently. The unit generally reports the GPS interference condition to a civil aviation safety management department after the flight falls to the ground, and the delay of the reporting time is not beneficial to timely checking and treating the interference source and eliminating potential safety hazard as soon as possible; at present, most of interference does not have serious influence on flight operation when occurring, so that part of flights do not report GPS interference, and therefore flight interference information actually mastered by civil aviation safety management departments is not comprehensive enough.
At present, some airports in China collect airborne GPS receiver data for grounded flights to confirm whether the flights are interfered by GPS, but the types of the airports capable of receiving the data are not complete, the number of the airports with the system is small, the data are required to be collected to a local civil aviation management department after the flights finish one day, and the auxiliary technical means also have the defects of time lag and incomplete data.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a method for analyzing and alarming the interference of the GPS signal of the civil aircraft in real time, and the method is used for analyzing and investigating the interference condition of the GPS signal of the civil aircraft in the flight process in real time by using flight path data generated by airborne equipment of the civil aircraft.
The invention provides a civil aircraft GPS signal interference real-time analysis and alarm method, which comprises the following steps:
receiving flight path information, and sequentially receiving the airborne flight path information of the same aircraft according to a time sequence;
receiving position information, and receiving the position information of the current track point;
calculating the speed, and calculating the speed and the direction of the first track point;
comparing the speeds, comparing the speed sizes and the directions of the two track points, and jumping to the step of receiving the position information if the difference value of the speed sizes or the directions is not a threshold value; if the difference value of the speed or the direction exceeds the threshold value, judging whether the flight is in the GPS interfered state, if so, identifying that the flight GPS interfered state is finished, otherwise, identifying that the flight GPS interfered state is started.
Further, in the step of receiving the track information, the updating frequency of the track data on board the same aircraft is 0.5 seconds to 1 second.
Furthermore, in the step of calculating the speed, a vector is made according to the position of the current track point relative to the position of the last track point, the length of the vector is divided by the time interval between the two points to obtain the speed, and the direction of the vector is the speed direction.
Further, in the step of comparing the speeds, if the speed change exceeds 30% or the navigation direction angle change exceeds 20 degrees, it is determined that the flight GPS signal is interfered.
Furthermore, each track point comprises longitude and latitude, height and attached information; and obtaining the actual flying position information of the aircraft by using the comprehensive track provided by the secondary radar as actual track data.
Further, in the step of receiving the flight path information, an automatic monitoring system of air traffic administration in each region receives flight path data generated by airborne equipment of an aircraft in the controlled airspace range in real time through a ground-air data link; and collecting the data of each region through a ground network link to obtain the airborne track data of all flights in the national airspace range.
Further, the method also comprises the step of sending the checking result, and the interfered flight number, the time period and the position information are collected and sent to a local radio committee.
An electronic device, comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for executing a civil aircraft GPS signal interference real-time analysis alert method.
A computer-readable storage medium having stored thereon a computer program for executing by a processor a civil aircraft GPS signal interference real-time analysis warning method.
A computer program product comprising computer programs/instructions which, when executed by a processor, implement a civil aircraft GPS signal interference real-time analysis alert method.
Compared with the prior art, the invention has the beneficial effects that:
the invention can investigate and determine the time and the position of the aircraft with GPS interference by analyzing the characteristics and the rules in the airborne track data in real time. The analysis technique is real-time, the flight can be detected when the aircraft is interfered by the GPS, and the flights which can be checked are all flights in the national air. The investigation result of the invention, including the interfered flight number, time quantum, position information and the like, is collected and sent to the local radio committee, so that the local radio committee can quickly respond when GPS interference just occurs, the investigation processing work is immediately started for the ground interference source, and the position information of the flight is also helpful for reducing the ground investigation range, thereby accelerating the clearing of the ground interference source and recovering the normal operation of the flight as soon as possible.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a first schematic diagram of flight path data points during a flight GPS signal interference period according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of flight path data points during a flight GPS signal interference period according to an embodiment of the present invention;
fig. 3 is a flow chart of the civil aircraft GPS signal interference real-time analysis warning method of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The real-time analysis and alarm method for the interference of the GPS signals of the civil aircraft uses track data generated by airborne equipment of the civil aircraft to analyze and investigate the interference condition of the GPS signals of the civil aircraft in the flight process in real time. That is, the track data used in the present invention is generated by equipment onboard the aircraft, rather than by ground monitoring equipment such as radar. Generally speaking, airborne equipment mainly uses a GPS signal as a position information source, and the rest of the sources are standby, when the airborne equipment judges that the situation occurs, the position information source is switched by the airborne equipment, the land-based navigation system or the inertial navigation system is used as a main position information source, the GPS signal is dropped to standby, and once the GPS signal interference disappears and is recovered to normal, the airborne equipment recovers the GPS signal to be the main position information source. In the process of switching the position information source of the airborne equipment, the accuracy of the position information in the airborne track data can be influenced. When the GPS signal is normal, the position information of the airborne equipment is basically consistent with the actual position information of the aircraft (after the ionospheric interference, the ephemeris error, the receiver error and other unusual factors are eliminated); and the main position information source of the airborne equipment is switched to other channels from the GPS signal and is switched back to the GPS signal from other channels at two time points, because the working mechanisms of different position information sources are different, the obvious jump phenomenon can occur on the position of the aircraft reflected by the flight path data provided by the airborne equipment.
The method analyzes a large number of historical cases of the aircraft subjected to GPS interference, and the conclusion is supported by comparing the airborne track data with the actual track data when the aircraft is subjected to the GPS interference. The invention uses the comprehensive track provided by the secondary radar as the actual track data, is not interfered by the outside and can be regarded as the actual flying position of the aircraft.
As shown in fig. 1 and fig. 2, track data points during the interfered GPS signals of two flights are displayed on a map, the dashed line is the onboard equipment track data, the solid line is the actual track of the flight, and the arrow indicates the flight direction. In fact, the flight should fly smoothly, as shown by the dashed line, but it can be seen that the solid line has a significant position deviation from the dashed line, and the circle indicates that the position represented by the airborne track data will jump when the GPS interference starts or ends. Based on the analysis of the historical data, the airborne data of most GPS interfered flights will generate position jumps at the beginning and end of the interference. According to this law, the method for real-time analysis and alarm of the interference of the civil aircraft GPS signals, as shown in fig. 3, comprises the following steps:
receiving flight path information, and sequentially receiving the airborne flight path information of the same aircraft according to a time sequence; the track data is track information of the aircraft in the flying process, and each track point comprises longitude and latitude, height and other accessory information. The automatic monitoring system of the air traffic administration in each region can receive track data generated by airborne equipment of aircrafts in the range of the airspace under the jurisdiction through the ground-air data link in real time, and the data in each region can be collected together through the ground network link, so that the airborne track data of all flights in the range of the national airspace is collected. The updating frequency of the flight path data on the same aircraft is 0.5 seconds to 1 second. The aircraft flight path data received via the ground-to-air data link is real-time with a time lag of no more than 0.1 second. The invention can investigate and determine the time and the position of the aircraft with GPS interference by analyzing the characteristics and the rules in the airborne track data in real time. The analysis technology is real-time, and the aircraft can be detected in the process of being interfered by a GPS; and the flights that can be checked out are all flights in the national airspace.
And receiving the position information, receiving the position information of the current track point, and obtaining the actual flying position information of the aircraft by using the comprehensive track provided by the secondary radar as actual track data.
And calculating the speed, calculating the speed and the direction of the last track point, taking the position of the current track point relative to the position of the last track point as a vector, and dividing the length of the vector by the time interval of the two points to obtain the speed, wherein the direction of the vector is the speed direction.
Comparing the speeds, comparing the speed sizes and the directions of the two track points, and jumping to the step of receiving the position information if the difference value of the speed sizes or the directions is not a threshold value; if the difference value of the speed or the direction exceeds the threshold value, judging whether the flight is in the GPS interfered state, if so, identifying that the flight GPS interfered state is finished, otherwise, identifying that the flight GPS interfered state is started. Through analysis and comparison of a large amount of historical data, the currently set threshold values are: and if the speed changes by more than 30% or the navigation direction angle changes by more than 20 degrees, judging that the flight GPS signal is interfered.
In one embodiment, the method further comprises the step of sending the troubleshooting results, and the interfered flight number, the time period, the position information and the like are collected and sent to a local radio committee, so that the local radio committee can quickly respond to the GPS interference when the GPS interference just occurs, the ground interference sources immediately start to be cleared, and the position information of the flight is also beneficial to reducing the ground troubleshooting range, so that the ground interference sources are cleared quickly, and the normal operation of the flight is recovered as soon as possible.
The GPS signal interference real-time analysis and alarm system developed by the civil aircraft GPS signal interference real-time analysis and alarm method can analyze and alarm the GPS signal interference condition of the civil aircraft in the airspace in real time. After the analysis and comparison with the GPS signal interference condition report (called local data for short) of the civil aviation passenger plane regularly collected by the civil aviation management department, the coverage rate reaches more than 95 percent. As described in the background art, the local data is not comprehensive for the reasons of the set and the technology, the GPS signal interference case acquired by the automatic acquisition means of the present invention is about 140% of the local data, and the actual GPS signal interference case is about 133% of the local data by combining the number of 95% of the coverage. Therefore, the civil aircraft GPS signal interference real-time analysis and alarm method provided by the invention has the advantages of strong real-time performance, high accuracy and more comprehensive covered GPS signal interference cases, and is beneficial to timely and effectively performing investigation and cleaning on ground interference sources by civil aviation management departments.
An electronic device, comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for executing a civil aircraft GPS signal interference real-time analysis alert method.
A computer-readable storage medium having stored thereon a computer program for executing by a processor a civil aircraft GPS signal interference real-time analysis warning method.
A computer program product comprising computer programs/instructions which, when executed by a processor, implement a civil aircraft GPS signal interference real-time analysis alert method.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. The civil aircraft GPS signal interference real-time analysis and alarm method is characterized by comprising the following steps:
receiving flight path information, and sequentially receiving the airborne flight path information of the same aircraft according to a time sequence;
receiving position information, and receiving the position information of the current track point;
calculating the speed, and calculating the speed and the direction of the first track point;
comparing the speeds, comparing the speed sizes and the directions of the two track points, and jumping to the step of receiving the position information if the difference value of the speed sizes or the directions is not a threshold value; if the difference value of the speed or the direction exceeds the threshold value, judging whether the flight is in the GPS interfered state, if so, identifying that the flight GPS interfered state is finished, otherwise, identifying that the flight GPS interfered state is started.
2. The civil aircraft GPS signal interference real-time analysis warning method according to claim 1, characterized in that: in the step of receiving the flight path information, the updating frequency of the flight path data of the same aircraft is 0.5-1 second.
3. The civil aircraft GPS signal interference real-time analysis warning method according to claim 1, characterized in that: in the step of calculating the speed, a vector is made relative to the position of the last track point through the position of the current track point, the length of the vector is divided by the time interval of the two points to obtain the speed, and the direction of the vector is the speed direction.
4. The civil aircraft GPS signal interference real-time analysis warning method according to claim 1, characterized in that: in the step of comparing the speeds, if the change of the speed exceeds 30 percent or the change of the navigation direction angle exceeds 20 degrees, the flight GPS signal is judged to be interfered.
5. The civil aircraft GPS signal interference real-time analysis warning method according to claim 1, characterized in that: each track point comprises longitude and latitude, height and attached information; and obtaining the actual flying position information of the aircraft by using the comprehensive track provided by the secondary radar as actual track data.
6. The civil aircraft GPS signal interference real-time analysis warning method according to claim 1, characterized in that: in the step of receiving the flight path information, an automatic monitoring system of air traffic management offices in various regions receives flight path data generated by airborne equipment of aircrafts in the range of the airspace under the jurisdiction in real time through a ground-air data link; and collecting the data of each region through a ground network link to obtain the airborne track data of all flights in the national airspace range.
7. The civil aircraft GPS signal interference real-time analysis warning method according to claim 1, characterized in that: and sending the troubleshooting result, and collecting and sending the interfered flight number, time period and position information to the local radio committee.
8. An electronic device, characterized by comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for carrying out the method according to any one of claims 1-7.
9. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program is executed by a processor for performing the method according to any of claims 1-7.
10. A computer program product comprising computer programs/instructions, characterized in that the computer programs/instructions, when executed by a processor, implement the method according to any of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110557869.6A CN113466893A (en) | 2021-05-21 | 2021-05-21 | Civil aircraft GPS signal interference real-time analysis alarm method, electronic device, storage medium and program product |
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| CN202110557869.6A CN113466893A (en) | 2021-05-21 | 2021-05-21 | Civil aircraft GPS signal interference real-time analysis alarm method, electronic device, storage medium and program product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550504A (en) * | 2022-01-10 | 2022-05-27 | 民航数据通信有限责任公司 | GPS interference area identification and investigation method and device based on ADS-B data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550504A (en) * | 2022-01-10 | 2022-05-27 | 民航数据通信有限责任公司 | GPS interference area identification and investigation method and device based on ADS-B data |
| CN114550504B (en) * | 2022-01-10 | 2023-12-22 | 民航数据通信有限责任公司 | GPS interference area identification and investigation method and device based on ADS-B data |
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