WO2017097158A1 - Gps攻击的检测方法及装置 - Google Patents
Gps攻击的检测方法及装置 Download PDFInfo
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- WO2017097158A1 WO2017097158A1 PCT/CN2016/108077 CN2016108077W WO2017097158A1 WO 2017097158 A1 WO2017097158 A1 WO 2017097158A1 CN 2016108077 W CN2016108077 W CN 2016108077W WO 2017097158 A1 WO2017097158 A1 WO 2017097158A1
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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
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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
Definitions
- the present invention relates to the field of information technology, and in particular, to a method and apparatus for detecting a GPS attack.
- the Global Positioning System also known as the Global Positioning System (GPS), is a medium-distance circular orbit satellite navigation system; it provides accurate positioning, speed and altitude for most areas of the Earth's surface (98%). The time standard of precision.
- the GPS system includes 24 GPS satellites in space; one master station on the ground, three data injection stations and five monitoring stations, and a GPS receiver as a client.
- the GPS signal transmitted by the GPS satellite is an information resource that can be shared by countless users.
- the GPS receiver can use the GPS signal to perform navigation and positioning measurement at any time.
- the specific process is as follows: the GPS receiver can capture the GPS satellite to send the GPS signal to be detected, and Converting, amplifying and processing the received GPS signal to be detected, so as to measure the propagation time of the GPS signal to be detected from the GPS satellite to the GPS receiver antenna, interpret the navigation message sent by the GPS satellite, and calculate the GPS reception in real time. Machine location information.
- a GPS receiver when a GPS receiver is positioned by a GPS signal, there may be a GPS attack, which is a false GPS signal transmitted by a forged GPS signal transmitter, within the effective transmission range of the forged GPS signal transmitter, if GPS
- the location information of the GPS receiver is inconsistent with the current location information of the GPS receiver.
- the determined location information may be Xinjiang or Shanghai; however, the real location information of the GPS receiver is a certain area in Beijing.
- the error location information determined by the GPS receiver is inconvenient to the GPS receiver user and may even cause irreparable damage.
- the present invention provides a GPS attack detection method and apparatus, the main purpose of which is to solve the problem of GPS reception in the effective transmission range of a forged GPS signal transmitter.
- the location information of the GPS receiver is inconsistent with the current location information of the GPS receiver.
- the present invention provides a method for detecting a GPS attack, the method comprising:
- the terminal device And acquiring, by the terminal device, the first geographic location information and the second geographic location information; wherein the first geographic location information is determined by a global positioning system (GPS), and the second geographic location information is determined by a Beidou satellite.
- GPS global positioning system
- the navigation system BDS determines, and the GPS and the BDS are installed in the same terminal device;
- the error exceeds the preset error threshold, it is determined that there is a GPS attack on the current geographical location information, and the warning information that the GPS attack exists is output.
- the present invention provides a GPS attack detecting apparatus, the apparatus comprising:
- a first acquiring unit configured to acquire first geographic location information and second geographic location information when the terminal device determines its current geographic location information; wherein the first geographic location information is determined by a global positioning system (GPS), The second geographical location information is determined by the Beidou satellite navigation system BDS, and the GPS and the BDS are installed in the same terminal device;
- GPS global positioning system
- a calculating unit configured to calculate an error between the first geographic location information determined by the first acquiring unit and the second geographic location information
- a first determining unit configured to determine whether the error calculated by the calculating unit exceeds a preset error threshold
- a second determining unit configured to: when the first determining unit determines that the error exceeds the preset error threshold, determine that a GPS attack exists in current geographic location information;
- an output unit configured to output, after the second determining unit determines that the GPS attack exists, outputting the warning information that the GPS attack exists.
- a computer program comprising computer readable code that, when executed on a computing device, causes the computing device to perform a GPS attack according to the above Detection method.
- a computer readable medium storing the above computer program is provided.
- the method and device for detecting a GPS attack provided by the present invention, When the terminal device determines its current geographic location, acquiring first geographic location information determined by the global positioning system GPS and second geographic location information determined by the Beidou satellite navigation system BDS, calculating the first geographic location information and the second geographic location An error between the location information, and determining whether the error exceeds a preset error threshold; if the error exceeds the preset error threshold, determining that the current geographic location information has a GPS attack, and outputting the warning information of the GPS attack; The invention locates the same geographical location information by using the global positioning system GPS and the Beidou satellite navigation system BDS.
- the determination is made. There is a GPS attack. Since the GPS attack occurs, the probability of attacking GPS and BDS at the same time is small. Therefore, the same geographical location information is verified by "multi-mode" to ensure the correctness of the geographical location information, so as to make the terminal device Users can get the current geographical location information of their location correctly and conveniently.
- FIG. 1 is a flowchart of a method for detecting a GPS attack according to an embodiment of the present invention
- FIG. 2 is a block diagram showing the composition of a GPS attack detecting apparatus according to an embodiment of the present invention
- FIG. 3 is a block diagram showing the composition of another GPS attack detecting apparatus according to an embodiment of the present invention.
- Figure 4 is a schematic block diagram of a computing device for performing a method of detecting a GPS attack in accordance with the present invention
- Fig. 5 schematically shows a storage unit for holding or carrying program code for implementing a detection method of a GPS attack according to the present invention.
- the embodiment of the invention provides a method for detecting a GPS attack. As shown in FIG. 1 , the method includes:
- the terminal device determines its current geographic location information, obtain the first geographic location information and the second geographic location information.
- the terminal device needs to be equipped with a Global Positioning System (GPS) and a BeiDou Navigation Satellite System (BDS), which serves as a signal receiver for GPS and BDS.
- GPS Global Positioning System
- BDS BeiDou Navigation Satellite System
- the first geographic location information is determined by a global positioning system (GPS)
- GPS global positioning system
- BDS Beidou Satellite Navigation system
- the signal receiver (terminal device) acquires the first geographical location information and the second geographical location information, it is necessary to determine the location service application in the open signal receiver (terminal device).
- the signal receiver (terminal device) acquires the geographical location information
- different satellite navigation systems work differently when determining the geographical location information, and the determined geographic location may also have a difference, wherein
- the working principle of the GPS location information and the working principle of the BDS location information please refer to the related description of the prior art, and the embodiments of the present invention are not described herein again.
- the first geographical location information and the second geographical location information include information such as latitude, longitude, altitude, time and the like of the signal receiver, wherein the latitude and longitude is a coordinate system of longitude and latitude, which is a three-dimensional space
- the spherical surface defines the spherical coordinate system of the space on Earth, which can indicate any position on the earth.
- the embodiment of the present invention does not specifically limit the content included in the first geographical location information and the second geographical location information.
- the terminal device includes, but is not limited to, the following content, for example, a personal computer (PC), a portable computer, a tablet computer, a smart phone, and the like.
- PC personal computer
- portable computer portable computer
- tablet computer tablet computer
- smart phone smart phone
- the preset error threshold is an empirical value. When the preset error threshold is set, the smaller the preset error threshold is, the more accurate the current geographic location information determined by the terminal device is; the preset preset error threshold is larger. The coarser the current geographical location information determined by the terminal device; Illustratively, the preset error threshold may be set to 100 m, or the preset error threshold may be set to 200 m, etc.; when the preset error threshold is set, it needs to be set according to the actual needs of the terminal device user, and the embodiment of the present invention The specific value of the preset error threshold is not limited.
- the first geographical location information and the second geographical location information acquired by the signal receiver (terminal device) are usually latitude and longitude. If the basic unit when the preset error threshold is set is meters or kilometers, the latitude and longitude needs to be The unit conversion is performed in meters and kilometers, wherein the latitude 1 degree is approximately equal to 111 km, the latitude 1 minute is approximately equal to 1.85 km, and the latitude 1 second is approximately equal to 30.9 m. In the embodiment of the present invention, the unit conversion of the latitude and longitude with meters, kilometers, and the like is involved. The specific conversion method is not limited.
- the determined geographical location information may not be exactly the same, and may be allowed to have errors, but the error needs to be defined by the preset error threshold; when the first geographical location information When the error between the second geographic location information exceeds the preset error threshold, it indicates that there is a GPS attack in the area where the current geographic location information of the terminal device is located, that is, the geographical location information acquired by the terminal device user is wrong.
- the output After determining that there is a GPS attack, the output displays a warning message indicating that there is a GPS attack, so that the terminal device user relocates the current geographical location information according to the alert information.
- the content may include, but is not limited to, the following content, for example, the current geographic location information fails to be located; or the current geographic location information is incorrectly located.
- the content of the warning information is not limited in the embodiment of the present invention.
- the method for detecting a GPS attack provided by the embodiment of the present invention, when the terminal device determines the current geographic location, acquires the first geographic location information determined by the global positioning system GPS and the second geographic location information determined by the Beidou satellite navigation system BDS, and calculates Determining an error between the first geographic location information and the second geographic location information, and determining whether the error exceeds a preset error threshold; if the error exceeds the preset error threshold, determining that the current geographic location information has a GPS attack, and Outputting the warning information of the GPS attack; the embodiment of the present invention locates the same geographical location information by using the global positioning system GPS and the Beidou satellite navigation system BDS, if the first geographical location information determined by the GPS and the second geographical location determined by the BDS If the error between the information exceeds the preset error threshold, it is determined that there is a GPS attack.
- the probability of attacking GPS and BDS is small at the same time. Therefore, the same geographical location information is verified by "multi-mode" to ensure the correctness of the geographical location information, so that the terminal device user can be correct, Convenient access to the current geographic location information.
- determining the current geographic location according to the first geographic location information or the second geographic location information Information that is, determining that the current geographical location information does not have a GPS attack.
- calculating the first geographic location information and the second geographic location The average value of the information is determined as the current geographic location information of the terminal device.
- the method for determining the current geographic location information is not limited in the embodiment of the present invention, and the first geographic location information is determined as the current geographical location information.
- the second geographical location information is still determined as the current geographical location information, and the current geographical location information is the correct information.
- the method when calculating the error between the first geographical location information and the second geographic location information in step 102, the method may be performed by using, but not limited to, the following manners.
- the terminal device acquires a preset number of first geographic location information and a preset number of second geographic location information; and calculates a preset number of first geographic location information and a preset number of second geographic locations, respectively. The error between the information.
- the terminal device acquires three first geographical location information and two second geographical location information, and the combination of the first geographical location information and the second geographical location information is:
- the accuracy of the error can be improved by combining a plurality of first geographical location information and the second geographical location information, and calculating an error between the plurality of first geographical location information and the plurality of second geographic location information .
- the GPS signals generated by the forged BDS satellites may be forged GPS.
- the attack may also be a forged GPS attack by a forged GPS satellite.
- the manner of the forged GPS attack is not limited in the embodiment of the present invention.
- first historical geographical location information and second historical geographical location information where the first geographic location
- the historical geographical location information is historical geographical location information determined by the GPS
- the second geographical historical geographical location information is historical geographical location information determined by the BDS. If the difference between the first historical geographical location information and the first geographic location information exceeds a preset distance threshold, determining that the GPS attack exists; if the second historical geographic location information and the second geographic location If the difference between the location information exceeds the preset distance threshold, it is determined that the GPS attack exists.
- the GPS attack is a forged GPS attack by a forged BDS satellite or a forged GPS satellite transmitted signal forgery GPS attack.
- the first historical geographical location information acquired by the terminal device is (longitude 115°58′, latitude 40°28′), (longitude 115°59′, latitude 39°43′), and the first geographical location information (longitude 113.27°, latitude 23.13°);
- the second historical geographical location information is (longitude 116°28′, latitude 39°55′), (longitude 116°20′, latitude 39°44′), etc.
- the second geographical location information (longitude 116°26', latitude 39°45') and the like.
- first geographical location information longitude 113.27°, latitude 23.13°
- first historical geographical location information longitude 115°58′, latitude 40°28′
- longitude 115°59′, latitude 39°43′ longitude 115°59′, latitude 39°43′
- the first geographical location information and the second geographic location information are acquired, and the preset number of geographical location information determined by the GPS is acquired; Setting the number of pieces of geographic location information to perform arithmetic mean calculation, determining the geographical location information calculated by the arithmetic mean value as the first location information; acquiring the preset number of geographical location information determined by the BDS; The preset geographic location information is used to perform arithmetic mean calculation, and the geographical location information calculated by the arithmetic mean is determined as the second location information.
- the accuracy of the first geographical location information and the second geographical location information is obtained by the terminal device.
- another embodiment of the present invention further provides a GPS attack detecting apparatus.
- the device embodiment corresponds to the foregoing method embodiment.
- the device embodiment is no longer within the details of the foregoing method embodiment.
- the content is described one by one, but it should be clarified that the device in this embodiment can implement all the contents in the foregoing method embodiments.
- the detecting device for the GPS attack includes:
- the first obtaining unit 21 is configured to acquire, when the terminal device determines the current geographic location information, the first geographic location information and the second geographic location information; wherein the first geographic location information is determined by a global positioning system (GPS), The second geographical location information is determined by the Beidou satellite navigation system BDS, and the GPS and the BDS are installed in the same terminal device;
- GPS global positioning system
- BDS Beidou satellite navigation system
- the calculating unit 22 is configured to calculate an error between the first geographical location information determined by the first acquiring unit 21 and the second geographical location information;
- a first determining unit 23 configured to determine whether the error calculated by the calculating unit 22 exceeds a preset error threshold
- a second determining unit 24 configured to: when the first determining unit 23 determines that the error exceeds the preset error threshold, determine that there is a GPS attack on the current geographic location information;
- the output unit 25 is configured to output, after the second determining unit 24 determines that the GPS attack exists, the warning information that the GPS attack exists.
- the device further includes:
- a third determining unit 26 configured to: when the first determining unit 23 determines that the error does not exceed the preset error threshold, determine the current according to the first geographic location information or the second geographic location information Location information.
- the calculating unit 22 includes:
- the obtaining module 221 is configured to acquire a preset number of first geographic location information and a preset number of second geographic location information;
- the calculating module 222 is configured to separately calculate an error between the preset number of first geographic location information acquired by the obtaining module 221 and the preset number of second geographic location information.
- the device further includes:
- a second acquiring unit 27 configured to acquire first historical geographical location information and second historical geographical location information before the second determining unit 24 determines that there is a GPS attack; wherein the first geographic historical geographical location information is Determining historical geographical location information determined by the GPS; the second geographical historical geographical location information is historical geographical location information determined by the BDS;
- the second determining unit 24 is further configured to: when the difference between the first historical geographical location information and the first geographic location information acquired by the second acquiring unit 27 exceeds a preset When the threshold is determined, determining that the current geographical location information has the GPS attack;
- the second determining unit 24 is further configured to determine, when the difference between the second historical geographical location information and the second geographic location information acquired by the second acquiring unit 27 exceeds a preset distance threshold, The geographic location information has the GPS attack.
- the first acquiring unit 21 includes:
- the first obtaining module 211 is configured to acquire preset geographic location information determined by the GPS;
- the first calculation module 212 is configured to perform arithmetic mean calculation on the preset number of pieces of geographic location information acquired by the first obtaining module 211;
- a first determining module 213, configured to determine the geographical location information calculated by the first calculating module 212 by an arithmetic mean value as the first location information
- a second obtaining module 214 configured to acquire preset geographic location information determined by the BDS
- the second calculating module 215 is configured to perform arithmetic mean calculation on the preset number of pieces of geographic location information acquired by the second obtaining module 214;
- the second determining module 216 is configured to determine the geographical location information calculated by the second calculating module 215 by the arithmetic mean value as the second location information.
- first geographical location information and the second geographical location information include latitude and longitude.
- the device for detecting a GPS attack provided by the embodiment of the present invention, when the terminal device determines the current geographic location, acquires the first geographic location information determined by the global positioning system GPS and the second geographic location information determined by the Beidou satellite navigation system BDS, and calculates An error between the first geographic location information and the second geographic location information, and determining whether the error exceeds a preset error threshold; if the error exceeds the preset error threshold, determining that a GPS attack exists, and outputting the presence The warning information of the GPS attack; the embodiment of the present invention locates the same geographical location information through the global positioning system GPS and the Beidou satellite navigation system BDS, if the first geographical location information determined by the GPS and the second geographical location information determined by the BDS If the error exceeds the preset error threshold, it is determined that there is a GPS attack on the current geographical location information.
- the probability of attacking the GPS and the BDS is small at the same time. Therefore, the same geographical location information is verified by “multi-mode”. Ensure that the location information is correct so that the end device user can be correct, McNair Gets the current location in the information it.
- modules in the devices of the embodiments can be adaptively changed and placed in one or more devices different from the embodiment.
- the modules or units or components of the embodiments may be combined into one module or unit or component, and further they may be divided into a plurality of sub-modules or sub-units or sub-components.
- any combination of the features disclosed in the specification, including the accompanying claims, the abstract and the drawings, and any methods so disclosed, or All processes or units of the device are combined.
- Each feature disclosed in this specification (including the accompanying claims, the abstract and the drawings) may be replaced by alternative features that provide the same, equivalent or similar purpose.
- the various component embodiments of the present invention may be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof.
- a microprocessor or digital signal processor may be used in practice to implement some of the GPS attack detection devices in accordance with embodiments of the present invention or Some or all of the features of all components.
- the invention can also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing some or all of the methods described herein.
- a program implementing the invention may be stored on a computer readable medium or may be in the form of one or more signals.
- Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.
- Figure 4 illustrates a computing device that can implement a method of detecting a GPS attack.
- the computing device conventionally includes a processor 410 and a computer program product or computer readable medium in the form of a memory 420.
- the memory 420 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM, a hard disk, or a ROM.
- Memory 420 has a memory space 430 for program code 431 for performing any of the method steps described above.
- storage space 430 for program code may include various program code 431 for implementing various steps in the above methods, respectively.
- the program code can be read from or written to one or more computer program products.
- These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG.
- the storage unit may have storage segments, storage spaces, and the like that are similarly arranged to memory 420 in the computing device of FIG.
- the program code can be compressed, for example, in an appropriate form.
- the storage unit includes computer readable code 431', ie, code readable by a processor, such as 410, that when executed by a computing device causes the computing device to perform each of the methods described above step.
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Abstract
一种GPS攻击的检测方法及装置,涉及信息技术领域,其目的在于解决GPS接收机接收到虚假GPS信号,GPS接收机定位的位置信息与该GPS接收机当前所在真实的位置信息不一致的问题。检测方法包括:当终端设备对当前地理位置信息进行定位时,获取第一地理位置信息及第二地理位置信息,第一地理位置信息由全球定位系统GPS确定,第二地理位置信息由北斗卫星导航系统BDS确定,且GPS与BDS安装于同一终端设备中(101);计算第一地理位置信息与第二地理位置信息之间的误差,并确定误差是否超过预置误差阈值(102);若误差超过预置误差阈值,则确定存在GPS攻击,并输出存在GPS攻击的警示信息(103)。检测方法及装置可应用于检测GPS攻击的过程中。
Description
本发明涉及信息技术领域,特别是涉及一种GPS攻击的检测方法及装置。
全球定位系统(Global Positioning System,GPS),又称全球卫星定位系统,是一个中距离圆型轨道卫星导航系统;它可以为地球表面绝大部分地区(98%)提供准确的定位、测速和高精度的时间标准。GPS系统包括太空中的24颗GPS卫星;地面上1个主控站、3个数据注入站和5个监测站及作为用户端的GPS接收机。
GPS卫星发送的GPS信号是可供无数用户共享的信息资源,GPS接收机可以在任何时候用GPS信号进行导航定位测量,其具体过程如下:GPS接收机能够捕获GPS卫星发送待检测GPS信号,并对所接收到的待检测GPS信号进行转换、放大和处理,以便测量出待检测GPS信号从GPS卫星到GPS接收机天线的传播时间,解译GPS卫星所发送的导航电文,实时计算出GPS接收机的位置信息。
目前,GPS接收机通过GPS信号进行定位时,可能会存在GPS攻击,所述GPS攻击是指通过伪造GPS信号发射器发送虚假GPS信号,在该伪造GPS信号发射器的有效发射范围内,若GPS接收机接收到虚假GPS信号,则该GPS接收机定位的位置信息与该GPS接收机当前所在真实的位置信息不一致。例如,若北京市某某区内架设有一台伪造GPS信号发射器,在该伪造GPS信号发射器的有效发射范围内,若GPS接收机接收到该伪造GPS信号发射器发送的虚假GPS信号,则确定的位置信息可能是新疆,也可能是上海;但GPS接收机真实的位置信息是北京某某区。GPS接收机确定的错误位置信息,给GPS接收机用户带来不便,甚至可能会带来不可挽回的损失。
发明内容
有鉴于此,本发明提供的一种GPS攻击的检测方法及装置,主要目的在于解决在伪造GPS信号发射器的有效发射范围内,若GPS接收
机接收到虚假GPS信号,则GPS接收机定位的位置信息与该GPS接收机当前所在真实的位置信息不一致的问题。
依据本发明一方面,本发明提供了一种GPS攻击的检测方法,该方法包括:
当终端设备确定其当前地理位置信息时,获取第一地理位置信息及第二地理位置信息;其中,所述第一地理位置信息由全球定位系统GPS确定,所述第二地理位置信息由北斗卫星导航系统BDS确定,且所述GPS与所述BDS安装于同一终端设备中;
计算所述第一地理位置信息与所述第二地理位置信息之间的误差,并确定所述误差是否超过预置误差阈值;
若所述误差超过所述预置误差阈值,则确定当前地理位置信息存在GPS攻击,并输出存在所述GPS攻击的警示信息。
依据本发明另一方面,本发明提供了一种GPS攻击的检测装置,该装置包括:
第一获取单元,用于当终端设备确定其当前地理位置信息时,获取第一地理位置信息及第二地理位置信息;其中,所述第一地理位置信息由全球定位系统GPS确定,所述第二地理位置信息由北斗卫星导航系统BDS确定,且所述GPS与所述BDS安装于同一终端设备中;
计算单元,用于计算所述第一获取单元确定的所述第一地理位置信息与所述第二地理位置信息之间的误差;
第一确定单元,用于确定所述计算单元计算的所述误差是否超过预置误差阈值;
第二确定单元,用于当所述第一确定单元确定所述误差超过所述预置误差阈值时,确定当前地理位置信息存在GPS攻击;
输出单元,用于在所述第二确定单元确定存在所述GPS攻击之后,输出存在所述GPS攻击的警示信息。
根据本发明的又一方面,提供了一种计算机程序,其包括计算机可读代码,当所述计算机可读代码在计算设备上运行时,导致所述计算设备执行根据上文所述的GPS攻击的检测方法。
根据本发明的再一方面,提供了一种计算机可读介质,其中存储了上述的计算机程序。
借由上述技术方案,本发明提供的GPS攻击的检测方法及装置,
当终端设备确定其当前地理位置时,获取由全球定位系统GPS确定的第一地理位置信息以及由北斗卫星导航系统BDS确定的第二地理位置信息,计算该第一地理位置信息与该第二地理位置信息之间的误差,并确定该误差是否超过预置误差阈值;若该误差超过该预置误差阈值,则确定当前地理位置信息存在GPS攻击,并输出存在所述GPS攻击的警示信息;本发明通过全球定位系统GPS以及北斗卫星导航系统BDS对同一地理位置信息进行定位,若GPS确定的第一地理位置信息与BDS确定的第二地理位置信息之间的误差超过预置误差阈值,则确定存在GPS攻击,由于GPS攻击发生时,其同时攻击GPS与BDS的机率较小,因此,通过“多模”对同一地理位置信息进行校验,确保该地理位置信息的正确性,以便使得终端设备用户能够正确、便捷的获取其所在的当前地理位置信息。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,而可依照说明书的内容予以实施,并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂,以下特举本发明的具体实施方式。
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本发明的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1示出了本发明实施例提供的一种GPS攻击的检测方法的流程图;
图2示出了本发明实施例提供的一种GPS攻击的检测装置的组成框图;
图3示出了本发明实施例提供的另一种GPS攻击的检测装置的组成框图;
图4示意性地示出了用于执行根据本发明的GPS攻击的检测方法的计算设备的框图;以及
图5示意性地示出了用于保持或者携带实现根据本发明的GPS攻击的检测方法的程序代码的存储单元。
下面结合附图和具体的实施方式对本发明作进一步的描述。
本发明实施例提供一种GPS攻击的检测方法,如图1所示,该方法包括:
101、当终端设备确定其当前地理位置信息时,获取第一地理位置信息及第二地理位置信息。
所述终端设备中需安装全球定位系统(Global Positioning System,GPS)与北斗卫星导航系统(BeiDou Navigation Satellite System,BDS),该终端设备作为GPS与BDS的信号接收机。其中,所述第一地理位置信息由全球定位系统GPS确定,所述第二地理位置信息由北斗卫星导航系统BDS确定。
需要说明的是,在信号接收机(终端设备)获取第一地理位置信息以及第二地理位置信息时,需确定打开信号接收机(终端设备)中的定位服务应用。在本发明实施例中,在信号接收机(终端设备)在获取地理位置信息时,不同的卫星导航系统在确定地理位置信息时的工作原理不同,其确定的地理位置也可能存在差异,其中,有关GPS定位地理位置信息的工作原理与BDS定位地理位置信息的工作原理请参考现有技术的相关说明,本发明实施例在此不再进行一一赘述。
所述第一地理位置信息与第二地理位置信息中包含信号接收机的经纬度、高度、时间等信息,其中,经纬度是经度与纬度的合称组成一个坐标系统,它是一种利用三度空间的球面来定义地球上的空间的球面坐标系统,能够标示地球上的任何一个位置。本发明实施例对第一地理位置信息以及第二地理位置信息中包含的内容不进行具体限定。
本发明实施例中,终端设备包括但不局限于以下内容,例如:个人电脑(personal computer,PC)、便携式电脑、平板电脑、智能手机等等,具体的本发明实施例对此不进行限定。
102、计算所述第一地理位置信息与所述第二地理位置信息之间的误差,并确定所述误差是否超过预置误差阈值。
所述预置误差阈值为经验值,在对该预置误差阈值进行设置时,设置该预置误差阈值越小,终端设备确定的当前地理位置信息越精确;预设该预置误差阈值越大,终端设备确定的当前地理位置信息越粗略;
示例性的,可以设置预置误差阈值为100m,或者,设置预置误差阈值为200m等等;在对预置误差阈值进行设置时,需根据终端设备用户的实际需求进行设置,本发明实施例对预置误差阈值的具体数值不进行限定。
需要说明的是,信号接收机(终端设备)获取的第一地理位置信息与第二地理位置信息通常为经纬度,若设置预置误差阈值时的基本单位为米或者千米时,需要将经纬度与米、千米进行单位转换,其中,纬度1度大约等于111km,纬度1分大约等于1.85km,纬度1秒大约等于30.9m,本发明实施例对经纬度与米、千米等进行单位转换所涉及的具体转换方式不进行限定。
103、若所述误差超过所述预置误差阈值,则确定当前地理位置信息存在GPS攻击,并输出存在所述GPS攻击的警示信息。
不同的卫星定位系统在确定同一地理位置信息时,其确定的地理位置信息不一定完全相同,可以并且允许其存在误差,但是,该误差需由预置误差阈值的限定;当第一地理位置信息与所述第二地理位置信息之间的误差超过预置误差阈值时,说明该终端设备当前地理位置信息所在的区域内存在GPS攻击,即终端设备用户获取的地理位置信息是错误的。
在确定存在GPS攻击之后,输出显示存在GPS攻击的警示信息,以便终端设备用户根据该警示信息重新定位其当前所在的地理位置信息。本发明实施例中,在输出显示警示信息时,其内容可以包含但不局限于以下的内容,例如,当前地理位置信息定位失败;或者,当前地理位置信息定位错误。本发明实施例对警示信息的内容不进行限定。
本发明实施例提供的GPS攻击的检测方法,当终端设备确定当前地理位置时,获取由全球定位系统GPS确定的第一地理位置信息以及由北斗卫星导航系统BDS确定的第二地理位置信息,计算该第一地理位置信息与该第二地理位置信息之间的误差,并确定该误差是否超过预置误差阈值;若该误差超过该预置误差阈值,则确定当前地理位置信息存在GPS攻击,并输出存在所述GPS攻击的警示信息;本发明实施例通过全球定位系统GPS以及北斗卫星导航系统BDS对同一地理位置信息进行定位,若GPS确定的第一地理位置信息与BDS确定的第二地理位置信息之间的误差超过预置误差阈值,则确定存在GPS攻击,
由于GPS攻击发生时,其同时攻击GPS与BDS的机率较小,因此,通过“多模”对同一地理位置信息进行校验,确保该地理位置信息的正确性,以便使得终端设备用户能够正确、便捷的获取其所在的当前地理位置信息。
进一步的,当确定第一地理位置信息与第二地理位置信息之间的误差未超过预置误差阈值时,根据所述第一地理位置信息或者所述第二地理位置信息确定所述当前地理位置信息,即确定当前地理位置信息不存在GPS攻击。作为本发明实施例的另一种实现方式,当在确定第一地理位置信息与第二地理位置信息之间的误差未超过预置误差阈值时,通过计算第一地理位置信息与第二地理位置信息的平均值,将该平均值确定为终端设备的当前地理位置信息,本发明实施例对当前地理位置信息的确定方式不进行限定,不管是将第一地理位置信息确定为当前地理位置信息,还是将第二地理位置信息确定为当前地理位置信息,所述当前地理位置信息均为正确的信息。
进一步的,作为对上述实施例的细化和扩展,在步骤102执行计算所述第一地理位置信息与所述第二地理位置信息之间的误差时,可以采用但不局限于以下的方式进行,例如:终端设备获取预置个数的第一地理位置信息以及预置个数的第二地理位置信息;分别计算预置个数的第一地理位置信息以及预置个数的第二地理位置信息之间的误差。
示例性的,终端设备获取3个第一地理位置信息,2个第二地理位置信息,从排列组合层面上说,第一地理位置信息与第二地理位置信息的组合方式为:通过多种第一地理位置信息与所述第二地理位置信息的组合方式,并计算多种第一地理位置信息与多种第二地理位置信息之间的误差,能够提高所述误差的精确度。
在具体实施时,通过GPS获取地理地理位置信息与BDS获取地理位置信息时,其接收到的卫星发射的信号是不同的,因此,在GPS攻击时,可能是伪造BDS卫星发射的信号伪造的GPS攻击,也可能是伪造GPS卫星发射的信号伪造的GPS攻击,本发明实施例对伪造的GPS攻击的方式不进行限定。
进一步的,在确定当前地理位置信息存在GPS攻击之前,获取第一历史地理位置信息与第二历史地理位置信息,其中,所述第一地理
历史地理位置信息为所述GPS确定的历史地理位置信息;所述第二地理历史地理位置信息为所述BDS确定的历史地理位置信息。若所述第一历史地理位置信息与所述第一地理位置信息之间的差异超过预设距离阈值,则确定存在所述GPS攻击;若所述第二历史地理位置信息与所述第二地理位置信息之间的差异超过预设距离阈值,则确定存在所述GPS攻击。在确定第一地理位置信息与第二地理位置信息之间的误差超过预置误差阈值的前提下,判断该GPS攻击是伪造BDS卫星发射的信号伪造的GPS攻击,还是伪造GPS卫星发射的信号伪造的GPS攻击。
示例性的,终端设备获取的第一历史地理位置信息分别为(经度115°58′,纬度40°28′)、(经度115°59′,纬度39°43′),而第一地理位置信息的(经度113.27°,纬度23.13°);第二历史地理位置信息分别为(经度116°28′,纬度39°55′)、(经度116°20′,纬度39°44′)等等,而第二地理位置信息的(经度116°26′,纬度39°45′)等等。通过第一历史地理位置信息(经度115°58′,纬度40°28′)、(经度115°59′,纬度39°43′)与第一地理位置信息(经度113.27°,纬度23.13°)比较可知,第一地理位置信息与其历史地理位置信息的跨度较大,因此,可以确定该GPS攻击是伪造GPS信号发射器引起的GPS攻击。以上仅为示例性的举例,具体的本发明实施例对第一历史地理位置信息、第一地理位置信息、第二历史地理位置信息及第二地理位置信息的具体内容不进行限定。
进一步的,为了能够确保终端设备获取地理位置信息的准确性,在获取第一地理位置信息及第二地理位置信息时,获取所述GPS确定的预置个数的地理位置信息;对所述预置个数的地理位置信息进行算术平均值计算,将通过算术平均值计算后的地理位置信息确定为所述第一位置信息;获取所述BDS确定的预置个数的地理位置信息;对所述预置个数的地理位置信息进行算术平均值计算,将通过算术平均值计算后的地理位置信息确定为所述第二位置信息。以提高终端设备获取第一地理位置信息与第二地理位置信息的准确性。
进一步的,作为对上述图1所示方法的实现,本发明另一实施例还提供了一种GPS攻击的检测装置。该装置实施例与前述方法实施例对应,为便于阅读,本装置实施例不再对前述方法实施例中的细节内
容进行逐一赘述,但应当明确,本实施例中的装置能够对应实现前述方法实施例中的全部内容。如图2所示,所述GPS攻击的检测装置包括:
第一获取单元21,用于当终端设备确定其当前地理位置信息时,获取第一地理位置信息及第二地理位置信息;其中,所述第一地理位置信息由全球定位系统GPS确定,所述第二地理位置信息由北斗卫星导航系统BDS确定,且所述GPS与所述BDS安装于同一终端设备中;
计算单元22,用于计算所述第一获取单元21确定的所述第一地理位置信息与所述第二地理位置信息之间的误差;
第一确定单元23,用于确定所述计算单元22计算的所述误差是否超过预置误差阈值;
第二确定单元24,用于当所述第一确定单元23确定所述误差超过所述预置误差阈值时,确定当前地理位置信息存在GPS攻击;
输出单元25,用于在所述第二确定单元24确定存在所述GPS攻击之后,输出存在所述GPS攻击的警示信息。
进一步的,如图3所述,所述装置还包括:
第三确定单元26,用于当所述第一确定单元23确定所述误差未超过所述预置误差阈值时,根据所述第一地理位置信息或者所述第二地理位置信息确定所述当前地理位置信息。
进一步的,如图3所述,所述计算单元22包括:
获取模块221,用于获取预置个数的第一地理位置信息以及预置个数的第二地理位置信息;
计算模块222,用于分别计算所述获取模块221获取的预置个数的第一地理位置信息以及预置个数的第二地理位置信息之间的误差。
进一步的,如图3所述,所述装置还包括:
第二获取单元27,用于在所述第二确定单元24确定存在GPS攻击之前,获取第一历史地理位置信息与第二历史地理位置信息;其中,所述第一地理历史地理位置信息为所述GPS确定的历史地理位置信息;所述第二地理历史地理位置信息为所述BDS确定的历史地理位置信息;
所述第二确定单元24,还用于当所述第二获取单元27获取的所述第一历史地理位置信息与所述第一地理位置信息之间的差异超过预设
距离阈值时,确定当前地理位置信息存在所述GPS攻击;
所述第二确定单元24,还用于当所述第二获取单元27获取的所述第二历史地理位置信息与所述第二地理位置信息之间的差异超过预设距离阈值时,确定当前地理位置信息存在所述GPS攻击。
进一步的,如图3所述,所述第一获取单元21包括:
第一获取模块211,用于获取所述GPS确定的预置个数的地理位置信息;
第一计算模块212,用于对所述第一获取模块211获取的所述预置个数的地理位置信息进行算术平均值计算;
第一确定模块213,用于将所述第一计算模块212通过算术平均值计算后的地理位置信息确定为所述第一位置信息;
第二获取模块214,用于获取所述BDS确定的预置个数的地理位置信息;
第二计算模块215,用于对所述第二获取模块214获取的所述预置个数的地理位置信息进行算术平均值计算;
第二确定模块216,用于将所述第二计算模块215通过算术平均值计算后的地理位置信息确定为所述第二位置信息。
进一步的,所述第一地理位置信息与所述第二地理位置信息包括经纬度。
本发明实施例提供的GPS攻击的检测装置,当终端设备确定当前地理位置时,获取由全球定位系统GPS确定的第一地理位置信息以及由北斗卫星导航系统BDS确定的第二地理位置信息,计算该第一地理位置信息与该第二地理位置信息之间的误差,并确定该误差是否超过预置误差阈值;若该误差超过该预置误差阈值,则确定存在GPS攻击,并输出存在所述GPS攻击的警示信息;本发明实施例通过全球定位系统GPS以及北斗卫星导航系统BDS对同一地理位置信息进行定位,若GPS确定的第一地理位置信息与BDS确定的第二地理位置信息之间的误差超过预置误差阈值,则确定当前地理位置信息存在GPS攻击,由于GPS攻击发生时,其同时攻击GPS与BDS的机率较小,因此,通过“多模”对同一地理位置信息进行校验,确保该地理位置信息的正确性,以便使得终端设备用户能够正确、便捷的获取其所在的当前地理位置信息。
在此处所提供的说明书中,说明了大量具体细节。然而,能够理解,本发明的实施例可以在没有这些具体细节的情况下实践。在一些实例中,并未详细示出公知的方法、结构和技术,以便不模糊对本说明书的理解。
类似地,应当理解,为了精简本公开并帮助理解各个发明方面中的一个或多个,在上面对本发明的示例性实施例的描述中,本发明的各个特征有时被一起分组到单个实施例、图、或者对其的描述中。然而,并不应将该公开的方法解释成反映如下意图:即所要求保护的本发明要求比在每个权利要求中所明确记载的特征更多的特征。更确切地说,如下面的权利要求书所反映的那样,发明方面在于少于前面公开的单个实施例的所有特征。因此,遵循具体实施方式的权利要求书由此明确地并入该具体实施方式,其中每个权利要求本身都作为本发明的单独实施例。
本领域那些技术人员可以理解,可以对实施例中的设备中的模块进行自适应性地改变并且把它们设置在与该实施例不同的一个或多个设备中。可以把实施例中的模块或单元或组件组合成一个模块或单元或组件,以及此外可以把它们分成多个子模块或子单元或子组件。除了这样的特征和/或过程或者单元中的至少一些是相互排斥之外,可以采用任何组合对本说明书(包括伴随的权利要求、摘要和附图)中公开的所有特征以及如此公开的任何方法或者设备的所有过程或单元进行组合。除非另外明确陈述,本说明书(包括伴随的权利要求、摘要和附图)中公开的每个特征可以由提供相同、等同或相似目的的替代特征来代替。
此外,本领域的技术人员能够理解,尽管在此所述的一些实施例包括其它实施例中所包括的某些特征而不是其它特征,但是不同实施例的特征的组合意味着处于本发明的范围之内并且形成不同的实施例。例如,在下面的权利要求书中,所要求保护的实施例的任意之一都可以以任意的组合方式来使用。
本发明的各个部件实施例可以以硬件实现,或者以在一个或者多个处理器上运行的软件模块实现,或者以它们的组合实现。本领域的技术人员应当理解,可以在实践中使用微处理器或者数字信号处理器(DSP)来实现根据本发明实施例的GPS攻击的检测装置中的一些或
者全部部件的一些或者全部功能。本发明还可以实现为用于执行这里所描述的方法的一部分或者全部的设备或者装置程序(例如,计算机程序和计算机程序产品)。这样的实现本发明的程序可以存储在计算机可读介质上,或者可以具有一个或者多个信号的形式。这样的信号可以从因特网网站上下载得到,或者在载体信号上提供,或者以任何其他形式提供。
例如,图4示出了可以实现GPS攻击的检测方法的计算设备。该计算设备传统上包括处理器410和以存储器420形式的计算机程序产品或者计算机可读介质。存储器420可以是诸如闪存、EEPROM(电可擦除可编程只读存储器)、EPROM、硬盘或者ROM之类的电子存储器。存储器420具有用于执行上述方法中的任何方法步骤的程序代码431的存储空间430。例如,用于程序代码的存储空间430可以包括分别用于实现上面的方法中的各种步骤的各个程序代码431。这些程序代码可以从一个或者多个计算机程序产品中读出或者写入到这一个或者多个计算机程序产品中。这些计算机程序产品包括诸如硬盘,紧致盘(CD)、存储卡或者软盘之类的程序代码载体。这样的计算机程序产品通常为如参考图5所述的便携式或者固定存储单元。该存储单元可以具有与图4的计算设备中的存储器420类似布置的存储段、存储空间等。程序代码可以例如以适当形式进行压缩。通常,存储单元包括计算机可读代码431’,即可以由例如诸如410之类的处理器读取的代码,这些代码当由计算设备运行时,导致该计算设备执行上面所描述的方法中的各个步骤。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着,结合实施例描述的特定特征、结构或者特性包括在本发明的至少一个实施例中。此外,请注意,这里“在一个实施例中”的词语例子不一定全指同一个实施例。
应该注意的是上述实施例对本发明进行说明而不是对本发明进行限制,并且本领域技术人员在不脱离所附权利要求的范围的情况下可设计出替换实施例。在权利要求中,不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本发明可以借助于包括有若干不同元件的硬件
以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中,这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
此外,还应当注意,本说明书中使用的语言主要是为了可读性和教导的目的而选择的,而不是为了解释或者限定本发明的主题而选择的。因此,在不偏离所附权利要求书的范围和精神的情况下,对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。对于本发明的范围,对本发明所做的公开是说明性的,而非限制性的,本发明的范围由所附权利要求书限定。
Claims (14)
- 一种GPS攻击的检测方法,包括:当终端设备确定其当前地理位置信息时,获取第一地理位置信息及第二地理位置信息;其中,所述第一地理位置信息由全球定位系统GPS确定,所述第二地理位置信息由北斗卫星导航系统BDS确定,且所述GPS与所述BDS安装于同一终端设备中;计算所述第一地理位置信息与所述第二地理位置信息之间的误差,并确定所述误差是否超过预置误差阈值;若所述误差超过所述预置误差阈值,则确定当前地理位置信息存在GPS攻击,并输出存在所述GPS攻击的警示信息。
- 根据权利要求1所述的方法,其中,所述方法还包括:若所述误差未超过所述预置误差阈值,则根据所述第一地理位置信息或者所述第二地理位置信息确定所述当前地理位置信息。
- 根据权利要求2所述的方法,其中,所述计算所述第一地理位置信息与所述第二地理位置信息之间的误差包括:获取预置个数的第一地理位置信息以及预置个数的第二地理位置信息;分别计算预置个数的第一地理位置信息以及预置个数的第二地理位置信息之间的误差。
- 根据权利要求3所述的方法,其中,在确定当前地理位置信息存在GPS攻击之前,所述方法还包括:获取第一历史地理位置信息与第二历史地理位置信息;其中,所述第一地理历史地理位置信息为所述GPS确定的历史地理位置信息;所述第二地理历史地理位置信息为所述BDS确定的历史地理位置信息;所述确定当前地理位置信息存在GPS攻击包括:若所述第一历史地理位置信息与所述第一地理位置信息之间的差异超过预设距离阈值,则确定当前地理位置信息存在所述GPS攻击;或者,若所述第二历史地理位置信息与所述第二地理位置信息之间的差异超过预设距离阈值,则确定当前地理位置信息存在所述GPS攻击。
- 根据权利要求4所述的方法,其中,所述获取第一地理位置信 息及第二地理位置信息包括:获取所述GPS确定的预置个数的地理位置信息;对所述预置个数的地理位置信息进行算术平均值计算,将通过算术平均值计算后的地理位置信息确定为所述第一位置信息;获取所述BDS确定的预置个数的地理位置信息;对所述预置个数的地理位置信息进行算术平均值计算,将通过算术平均值计算后的地理位置信息确定为所述第二位置信息。
- 根据权利要求1-5中任一项所述的方法,其中,所述第一地理位置信息与所述第二地理位置信息包括经纬度。
- 一种GPS攻击的检测装置,包括:第一获取单元,用于当终端设备确定其当前地理位置信息时,获取第一地理位置信息及第二地理位置信息;其中,所述第一地理位置信息由全球定位系统GPS确定,所述第二地理位置信息由北斗卫星导航系统BDS确定,且所述GPS与所述BDS安装于同一终端设备中;计算单元,用于计算所述第一获取单元确定的所述第一地理位置信息与所述第二地理位置信息之间的误差;第一确定单元,用于确定所述计算单元计算的所述误差是否超过预置误差阈值;第二确定单元,用于当所述第一确定单元确定所述误差超过所述预置误差阈值时,确定当前地理位置信息存在GPS攻击;输出单元,用于在所述第二确定单元确定存在所述GPS攻击之后,输出存在所述GPS攻击的警示信息。
- 根据权利要求7所述的装置,其中,所述装置还包括:第三确定单元,用于当所述第一确定单元确定所述误差未超过所述预置误差阈值时,根据所述第一地理位置信息或者所述第二地理位置信息确定所述当前地理位置信息。
- 根据权利要求8所述的装置,其中,所述计算单元包括:获取模块,用于获取预置个数的第一地理位置信息以及预置个数的第二地理位置信息;计算模块,用于分别计算所述获取模块获取的预置个数的第一地理位置信息以及预置个数的第二地理位置信息之间的误差。
- 根据权利要求9所述的装置,其中,所述装置还包括:第二获取单元,用于在所述第二确定单元确定存在GPS攻击之前,获取第一历史地理位置信息与第二历史地理位置信息;其中,所述第一地理历史地理位置信息为所述GPS确定的历史地理位置信息;所述第二地理历史地理位置信息为所述BDS确定的历史地理位置信息;所述第二确定单元,还用于当所述第二获取单元获取的所述第一历史地理位置信息与所述第一地理位置信息之间的差异超过预设距离阈值时,确定当前地理位置信息存在所述GPS攻击;所述第二确定单元,还用于当所述第二获取单元获取的所述第二历史地理位置信息与所述第二地理位置信息之间的差异超过预设距离阈值时,确定当前地理位置信息存在所述GPS攻击。
- 根据权利要求10所述的装置,其中,所述第一获取单元包括:第一获取模块,用于获取所述GPS确定的预置个数的地理位置信息;第一计算模块,用于对所述第一获取模块获取的所述预置个数的地理位置信息进行算术平均值计算;第一确定模块,用于将所述第一计算模块通过算术平均值计算后的地理位置信息确定为所述第一位置信息;第二获取模块,用于获取所述BDS确定的预置个数的地理位置信息;第二计算模块,用于对所述第二获取模块获取的所述预置个数的地理位置信息进行算术平均值计算;第二确定模块,用于将所述第二计算模块通过算术平均值计算后的地理位置信息确定为所述第二位置信息。
- 根据权利要求7-11中任一项所述的装置,其中,所述第一地理位置信息与所述第二地理位置信息包括经纬度。
- 一种计算机程序,包括计算机可读代码,当所述计算机可读代码在计算设备上运行时,导致所述计算设备执行根据权利要求1-6中任一项所述的GPS攻击的检测方法。
- 一种计算机可读介质,其中存储了如权利要求13所述的计算机程序。
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