CN115480272A - Unmanned aerial vehicle navigation decoy signal generation antenna method and system - Google Patents
Unmanned aerial vehicle navigation decoy signal generation antenna method and system Download PDFInfo
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- CN115480272A CN115480272A CN202211248860.8A CN202211248860A CN115480272A CN 115480272 A CN115480272 A CN 115480272A CN 202211248860 A CN202211248860 A CN 202211248860A CN 115480272 A CN115480272 A CN 115480272A
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
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Abstract
The invention discloses an antenna generating method and system for unmanned aerial vehicle navigation decoy signals, and belongs to the technical field of unmanned aerial vehicle decoy.
Description
Technical Field
The invention relates to the technical field of building fire fighting, in particular to an antenna method and system for generating a navigation decoy signal of an unmanned aerial vehicle.
Background
The unmanned aerial vehicle industry has emerged rapidly in recent years, and unmanned aerial vehicle's popularity improves, and unmanned aerial vehicle low cost, convenient operation, powerful, the easy purchase obtains, and unmanned aerial vehicle has that flight height is low, the rate of motion is slow, the characteristics that radar scattering area is little, is difficult to discover and handle. The 'low-slow small' targets have increasingly prominent serious threats to key places, sensitive areas and important activities, and the conventional countermeasures mainly comprise spectrum suppression interference, microwave destruction, net guns, lasers and the like.
The existing unmanned aerial vehicle counter measure has the following defects:
(1) Unmanned aerial vehicle is out of control or destroys unmanned aerial vehicle, and this can lead to the uncontrollable falling of unmanned aerial vehicle, easily produces secondary damage, consequently should not use in personnel intensive occasion, and application scope is limited.
(2) The unmanned aerial vehicle is deceived to capture the control authority function less, can not store and counter-reconnaissance unmanned aerial vehicle information.
Disclosure of Invention
The invention aims to provide an antenna method and system for generating a navigation decoy signal of an unmanned aerial vehicle, which are used for solving the problems that the unmanned aerial vehicle is out of control or destroys the unmanned aerial vehicle in the background technology, the unmanned aerial vehicle can fall uncontrollably and is easy to generate secondary damage, so that the unmanned aerial vehicle is not suitable for being used in occasions with intensive personnel, the application occasions are limited, the unmanned aerial vehicle has fewer functions of decoy and capturing control authority, and the information of the unmanned aerial vehicle cannot be stored and counterscout can not be carried out.
The technical scheme of the invention is as follows: an unmanned aerial vehicle navigation deception signal generation antenna method comprises the following steps:
the position of the unmanned aerial vehicle is monitored in real time, the UTC time of the unmanned aerial vehicle and the position information under a geodetic coordinate system are obtained, and then when the UTC time is converted into corresponding atoms, the position information is converted into a geocentric geodetic fixed rectangular coordinate system mark;
acquiring images of the position information of the unmanned aerial vehicle to determine the position information images and the surrounding conditions of the unmanned aerial vehicle, determining whether the unmanned aerial vehicle is a target unmanned aerial vehicle, and determining whether the unmanned aerial vehicle belongs to a forced landing area;
calculating real visible satellite pseudo-range information of the unmanned aerial vehicle at the current position to each day according to ephemeris parameters in the current ephemeris updating range and the position information of the unmanned aerial vehicle;
simulating in real time to generate deception signals according to the atomic time corresponding to the current moment of the unmanned aerial vehicle, the position information under the geocentric geostationary coordinate system and the real visible star pseudo-range information;
the deception signal is sent to a target unmanned aerial vehicle, a receiver of the target unmanned aerial vehicle captures and tracks the deception signal with the same real pseudo range, the direction and speed information of the deception signal is continuously modified, and deception of the unmanned aerial vehicle in different directions and speeds is achieved;
transmitting the deception signal result data to an unmanned aerial vehicle flight direction deception remote control system for processing, and simultaneously transmitting the data in the NMEA0183 format to a single chip microcomputer module by a BDS receiver for processing;
the unmanned aerial vehicle flight direction decoy remote control system starts a deception signal generation subsystem and controls a display screen to display corresponding indication information;
after a deception signal generation subsystem is started, a navigation deception algorithm on the DSP is used for completing deception, wherein the navigation deception algorithm comprises deception signal synchronization and deception signal traction;
deception navigation signal, can lure the remote control system to control the unmanned aerial vehicle direction of flight at any time through the unmanned aerial vehicle direction of flight, handle unmanned aerial vehicle induction to safe region, deception signal generation subsystem generating system sets up the initial speed, the reference coordinate position that correspond the direction for unmanned aerial vehicle according to the direction instruction of receipt to simulate a dynamic scene, lure unmanned aerial vehicle to fly toward the target direction, induce unmanned aerial vehicle to safe region, utilize broadband frequency hopping interference module to trigger the unmanned aerial vehicle that flies blackly and compel to land.
Thereby adjust unmanned aerial vehicle signal frequency through multichannel radiant power fine setting technique module and get into the unmanned aerial vehicle internal system and adjust thereby get into unmanned aerial vehicle database system to unmanned aerial vehicle signal frequency, thereby PID trail tracking induces the technique module and conveniently acquires unmanned aerial vehicle's right of authority control, and the database is convenient to be stored unmanned aerial vehicle information.
An unmanned aerial vehicle navigation decoy signal generation antenna system comprises a signal generation antenna and a signal generation antenna, wherein the signal generation antenna is connected with the signal generation antenna;
the radar detection system is used for monitoring the current position and UTC time of the unmanned aerial vehicle in real time to obtain the time and position information of the current unmanned aerial vehicle; the method is also used for storing the current ephemeris;
the processor is used for controlling the photoelectric equipment to acquire the unmanned aerial vehicle image based on the unmanned aerial vehicle position information;
the operation platform is used for calculating the real visible satellite pseudo-range information of the current position of the unmanned aerial vehicle to each day according to the ephemeris parameters in the current ephemeris updating range and the position and time information of the unmanned aerial vehicle;
the deception signal generation subsystem is used for converting the current UTC time of the unmanned aerial vehicle into atomic time, and then simulating in real time to generate deception signals according to the atomic time corresponding to the current time, the position information and the real visible star pseudo-range information;
the unmanned aerial vehicle flight direction decoy remote control system comprises a single chip microcomputer module, a clock chip module, a BDS receiver module, a key module, a display module and a storage module, wherein the clock chip module, the BDS receiver module, the key module, the display module and the storage module are electrically connected with the single chip microcomputer module;
the clock chip module is used for providing real-time and sending real-time data to the single chip microcomputer module; the BDS receiver module is used for receiving the BDS satellite signals, resolving positioning data in the BDS signals, converting resolving results into NMEA0183 format and sending the NMEA0183 format to the single chip microcomputer module; the key module is used for sending corresponding instructions to the single chip microcomputer by starting different keys; the display module is used for displaying corresponding instruction information when the keys of the key module are started; the storage module is used for storing data transmitted by the single chip microcomputer module; the single chip microcomputer module is used for processing resolving result data sent by the BDS receiver and sending a processing result to the deception signal generation subsystem;
the multi-channel radiation power fine-tuning technology module is used for adjusting the signal frequency of the unmanned aerial vehicle so as to enter an internal system of the unmanned aerial vehicle;
the PID track tracking induction technology module can flexibly deal with the unmanned aerial vehicle such as no-fly, stop, landing, decoy navigation and the like;
the anti-reconnaissance authority module copies data acquired in the unmanned aerial vehicle;
the database is used as a storage unit to store the acquired data in real time and upload the data to the cloud to prevent data loss.
Further, the spoofing signal is obtained by: determining a satellite that is available to generate a spoofed signal; calculating a carrier phase, a code phase, a carrier NCO and a code NCO of a satellite which can be used for generating deception signals to generate carrier waves and pseudo codes; modulating a text, a pseudo code and a carrier to generate a spoofed signal, the method of determining a satellite that is available to generate the spoofed signal comprising: and comparing the pseudo range of the simulated visible satellite with the pseudo range information of the real visible satellite one by one, and when the error between the pseudo range of the simulated visible satellite and the pseudo range information of the real visible satellite is less than a ranging code chip, determining that the satellite can be used for generating a deception signal.
Further, when the processor judges that the unmanned aerial vehicle in the image is the decoy target based on the unmanned aerial vehicle image, the processor controls the decoy device to decoy the decoy target until the decoy target lands at a specified position. .
Furthermore, the deception signal generation subsystem comprises a DSP module, an FPGA module and a D/A module; the DSP module is used for simulating and generating deception signals in real time according to the atomic time corresponding to the current UTC moment of the unmanned aerial vehicle, the coordinate information under the earth-centered earth-fixed rectangular coordinate system corresponding to the current position of the unmanned aerial vehicle and the pseudo-range information of the unmanned aerial vehicle at the current position to each visible satellite; the deception signal generation subsystem is also used for comparing pseudo-range information of the simulated visible star with pseudo-range information of the real visible star, and when the error of the pseudo-range information of the simulated visible star and the pseudo-range information of the real visible star is smaller than a set error, the satellite is considered to be available for the generation of deception signals; the DSP module is also used for calculating the telegraph text writing, carrier initial phase, code initial phase, carrier NCO and code NCO of the deception satellite. The FPGA module is used for carrying out carrier generation and code generation according to the carrier initial phase, the code initial phase, the carrier NCO and the value of the code NCO, and finally modulating the text, the pseudo code and the carrier to generate a deception signal; and the D/A module is used for performing digital-to-analog conversion on the signals regulated by the FPGA module to generate analog intermediate frequency signals.
Furthermore, the anti-reconnaissance authority module comprises an IP information acquisition module and an automatic positioning recording module, the IP information acquisition module acquires address information according to the intercepted satellite information, and the automatic positioning recording module performs positioning processing according to the satellite information.
The invention provides an antenna method and a system for generating a navigation decoy signal of an unmanned aerial vehicle by improvement, compared with the prior art, the method and the system have the following improvements and advantages:
according to the invention, the IP information acquisition module in the anti-reconnaissance authority module is used for acquiring address information according to the intercepted satellite information, the automatic positioning recording module is used for positioning according to the satellite information, the navigation satellite precise ephemeris decoding and calculation technology module is used for conveniently calculating the satellite condition, the multichannel radiation power fine adjustment technology module is used for conveniently adjusting the signal frequency of the unmanned aerial vehicle so as to enter the unmanned aerial vehicle database system, the PID track tracking induction technology module is used for conveniently acquiring the authority control authority of the unmanned aerial vehicle, the database is used for conveniently storing the information of the unmanned aerial vehicle, the fake satellite identical to the pseudo range from the unmanned aerial vehicle to the on-board satellite is generated, so that a deception signal can be seamlessly accessed into a receiver of the unmanned aerial vehicle at an excessive speed, the receiver does not need to be subjected to the processes of unlocking, deception and the like, the access time is greatly shortened, the access efficiency is improved, deception of the flight direction and speed of the unmanned aerial vehicle is realized, the target unmanned aerial vehicle is controlled by the deception signal to be in a preset designated position, the purpose of the anti-unmanned aerial vehicle is realized, and the secondary damage caused by uncontrollable falling is avoided.
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The invention is further explained below with reference to the figures and examples:
fig. 1 is a schematic diagram of an antenna method and system for generating a navigation decoy signal of an unmanned aerial vehicle;
Detailed Description
The present invention will be described in detail with reference to fig. 1, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an unmanned aerial vehicle navigation decoy signal generation antenna method and system through improvement, as shown in figure 1, the unmanned aerial vehicle navigation decoy signal generation antenna method comprises the following steps:
the position of the unmanned aerial vehicle is monitored in real time, the UTC time of the unmanned aerial vehicle and the position information under a geodetic coordinate system are obtained, and then when the UTC time is converted into corresponding atoms, the position information is converted into a geocentric geodetic fixed rectangular coordinate system mark;
acquiring images of the position information of the unmanned aerial vehicle to determine the position information images and the surrounding conditions of the unmanned aerial vehicle, determining whether the unmanned aerial vehicle is a target unmanned aerial vehicle, and determining whether the unmanned aerial vehicle belongs to a forced landing area;
calculating real visible satellite pseudo-range information of the unmanned aerial vehicle at the current position to each day according to ephemeris parameters in the current ephemeris updating range and the position information of the unmanned aerial vehicle;
simulating in real time to generate a deception signal according to the position information and the real visible star pseudo-range information under the atomic time, earth-center earth-fixed rectangular coordinate system corresponding to the current moment of the unmanned aerial vehicle;
sending the deception signal to a target unmanned aerial vehicle, capturing and tracking the deception signal which is the same as the real pseudo-range by a receiver of the target unmanned aerial vehicle, and continuously modifying the direction and speed information of the deception signal to realize deception of the unmanned aerial vehicle in different directions and speeds;
transmitting the deception signal result data to an unmanned aerial vehicle flight direction deception remote control system for processing, and simultaneously transmitting the data in the NMEA0183 format to a single chip microcomputer module by a BDS receiver for processing;
the unmanned aerial vehicle flight direction decoy remote control system starts a deception signal generation subsystem and controls a display screen to display corresponding indication information;
after a deception signal generation subsystem generation system is started, a navigation deception algorithm on a DSP is used for completing deception, wherein the navigation deception algorithm comprises deception signal synchronization and deception signal traction;
deception navigation signal, can lure the remote control system to control the unmanned aerial vehicle direction of flight at any time through the unmanned aerial vehicle direction of flight, handle unmanned aerial vehicle induction to safe region, deception signal generation subsystem generating system sets up the initial speed, the reference coordinate position that correspond the direction for unmanned aerial vehicle according to the direction instruction of receipt to simulate a dynamic scene, lure unmanned aerial vehicle to fly toward the target direction, induce unmanned aerial vehicle to safe region, utilize broadband frequency hopping interference module to trigger the unmanned aerial vehicle that flies blackly and compel to land.
Thereby adjust unmanned aerial vehicle signal frequency through multichannel radiant power fine setting technical module and get into the unmanned aerial vehicle internal system and adjust thereby get into unmanned aerial vehicle database system to unmanned aerial vehicle signal frequency, thereby PID trail tracking inducement technical module conveniently acquires unmanned aerial vehicle's authority control right, and the database is convenient to be stored unmanned aerial vehicle information.
An unmanned aerial vehicle navigation decoy signal generation antenna system comprises a signal generation antenna and a signal generation antenna, wherein the signal generation antenna is connected with the signal generation antenna;
the radar detection system is used for monitoring the current position and UTC time of the unmanned aerial vehicle in real time to obtain the time and position information of the current unmanned aerial vehicle; the method is also used for storing the current ephemeris;
the processor is used for controlling the photoelectric equipment to acquire the unmanned aerial vehicle image based on the unmanned aerial vehicle position information;
the operation platform is used for calculating real visible satellite pseudo-range information of the current position of the unmanned aerial vehicle to each day according to ephemeris parameters in the current ephemeris updating range and the position and time information of the unmanned aerial vehicle;
the deception signal generation subsystem is used for converting the current UTC time of the unmanned aerial vehicle into atomic time, and then simulating in real time to generate deception signals according to the atomic time, the position information and the real visible satellite pseudo-range information corresponding to the current time;
the unmanned aerial vehicle flight direction decoy remote control system comprises a single chip microcomputer module, a clock chip module, a BDS receiver module, a key module, a display module and a storage module, wherein the clock chip module, the BDS receiver module, the key module, the display module and the storage module are electrically connected with the single chip microcomputer module;
the clock chip module is used for providing real-time and sending real-time data to the single chip microcomputer module; the BDS receiver module is used for receiving the BDS satellite signals, resolving positioning data in the BDS signals, converting resolving results into an NMEA0183 format and sending the NMEA0183 format to the single chip microcomputer module; the key module is used for sending corresponding instructions to the single chip microcomputer by starting different keys; the display module is used for displaying corresponding instruction information when the key of the key module is started; the storage module is used for storing data transmitted by the single chip module; the single chip microcomputer module is used for processing resolving result data sent by the BDS receiver and sending a processing result to the deception signal generation subsystem;
the multi-channel radiation power fine-tuning technology module is used for adjusting the signal frequency of the unmanned aerial vehicle so as to enter an internal system of the unmanned aerial vehicle;
the PID track tracking induction technology module can flexibly deal with the unmanned aerial vehicle such as no-fly, stop, landing, decoy navigation and the like;
the anti-reconnaissance authority module copies data collected in the unmanned aerial vehicle;
the database is used as a storage unit to store the acquired data in real time and upload the data to the cloud to prevent data loss.
The spoof signal is obtained by: determining satellites available for generating spoofed signals; calculating a carrier phase, a code phase, a carrier NCO and a code NCO of a satellite which can be used for generating deception signals to generate carrier waves and pseudo codes; the method for modulating the text, the pseudo code and the carrier wave to generate the deception signal and determining the satellite which can be used for generating the deception signal comprises the following steps: and comparing the pseudo range of the simulated visible satellite with the pseudo range information of the real visible satellite one by one, and when the error between the pseudo range of the simulated visible satellite and the pseudo range information of the real visible satellite is less than a ranging code chip, determining that the satellite can be used for generating a deception signal.
When the processor judges that the unmanned aerial vehicle in the image is the decoy target based on the unmanned aerial vehicle image, the processor controls the decoy device to decoy the decoy target until the decoy target lands at the appointed position.
The deception signal generation subsystem comprises a DSP module, an FPGA module and a D/A module; the DSP module is used for simulating and generating deception signals in real time according to the atomic time corresponding to the current UTC moment of the unmanned aerial vehicle, the coordinate information under the earth center earth fixed-angle coordinate system corresponding to the current position of the unmanned aerial vehicle and the pseudo-range information of the unmanned aerial vehicle at the current position from each visible star; the deception signal generation subsystem is also used for comparing pseudo-range information of the simulated visible star with pseudo-range information of the real visible star, and when the error of the pseudo-range information of the simulated visible star and the pseudo-range information of the real visible star is smaller than a set error, the satellite is considered to be available for generating deception signals; the DSP module is also used for calculating the telegraph text writing, carrier initial phase, code initial phase, carrier NCO and code NCO of the deception satellite. The FPGA module is used for carrying out carrier generation and code generation according to the carrier initial phase, the code initial phase, the carrier NCO and the value of the code NCO, and finally modulating the text, the pseudo code and the carrier to generate a deception signal; and the D/A module is used for performing digital-to-analog conversion on the signal adjusted by the FPGA module to generate an analog intermediate frequency signal.
The anti-reconnaissance authority module comprises an IP information acquisition module and an automatic positioning recording module, the IP information acquisition module acquires address information according to the intercepted satellite information, and the automatic positioning recording module performs positioning processing according to the satellite information.
The working principle is as follows: firstly, monitoring the position of an unmanned aerial vehicle in real time, carrying out image acquisition on the position information of the unmanned aerial vehicle to determine the position information image and the surrounding situation of the unmanned aerial vehicle, determining whether the unmanned aerial vehicle is a target unmanned aerial vehicle, calculating the real visible star pseudo range information of the unmanned aerial vehicle at the current position to each day according to ephemeris parameters in the current ephemeris update range and the position information of the unmanned aerial vehicle, simulating in real time to generate cheating signals according to the position information of the unmanned aerial vehicle under the atomic time, the earth-centered earth-fixed rectangular coordinate system and the real visible star pseudo range information corresponding to the current moment of the unmanned aerial vehicle, sending the cheating signals to the target unmanned aerial vehicle, capturing and tracking the cheating signals identical to the real pseudo ranges by a receiver of the target unmanned aerial vehicle, continuously modifying the direction and speed information of the cheating signals, realizing cheating in different directions and speeds of the unmanned aerial vehicle, starting a cheating signal generation subsystem by a flying direction luring remote control system of the unmanned aerial vehicle, after a deception signal generation subsystem generation system is started, a navigation deception algorithm on a DSP is used for completing deception, the navigation deception algorithm comprises deception signal synchronization and deception signal traction, deception navigation signals can be used for remotely controlling the flight direction of the unmanned aerial vehicle at any time through an unmanned aerial vehicle flight direction decoy remote control system, the unmanned aerial vehicle is induced to a safe area to be treated, the deception signal generation subsystem generation system sets the initial speed and the reference coordinate position of the corresponding direction for the unmanned aerial vehicle according to a received direction instruction, so that a dynamic scene is simulated, the unmanned aerial vehicle is induced to fly towards a target direction, the unmanned aerial vehicle is induced to the safe area, a broadband frequency hopping interference module is used for triggering the black flying unmanned aerial vehicle to force to land, meanwhile, the multichannel radiation power fine adjustment technology module can be used for adjusting the signal frequency of the unmanned aerial vehicle so as to enter an unmanned aerial vehicle internal system to adjust the signal frequency and further enter an unmanned aerial vehicle database system, the PID trajectory tracking induction technology module conveniently acquires the authority control right of the unmanned aerial vehicle, and the database conveniently stores the information of the unmanned aerial vehicle.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An unmanned aerial vehicle navigation decoy signal generation antenna method is characterized in that: the decoy method comprises the following steps:
the position of the unmanned aerial vehicle is monitored in real time, the UTC time of the unmanned aerial vehicle and the position information under a geodetic coordinate system are obtained, and then when the UTC time is converted into corresponding atoms, the position information is converted into a geocentric geodetic fixed rectangular coordinate system mark;
acquiring images of the position information of the unmanned aerial vehicle to determine the position information images and the surrounding conditions of the unmanned aerial vehicle, determining whether the unmanned aerial vehicle is a target unmanned aerial vehicle, and determining whether the unmanned aerial vehicle belongs to a forced landing area;
calculating real visible satellite pseudo-range information of the unmanned aerial vehicle at the current position to each day according to ephemeris parameters in the current ephemeris updating range and the position information of the unmanned aerial vehicle;
simulating in real time to generate deception signals according to the atomic time corresponding to the current moment of the unmanned aerial vehicle, the position information under the geocentric geostationary coordinate system and the real visible star pseudo-range information;
sending the deception signal to a target unmanned aerial vehicle, capturing and tracking the deception signal which is the same as the real pseudo range by a receiver of the target unmanned aerial vehicle, and continuously modifying the direction and speed information of the deception signal to realize deception of the unmanned aerial vehicle in different directions and speeds;
transmitting the deception signal result data to an unmanned aerial vehicle flight direction deception remote control system for processing, and simultaneously transmitting the data in the NMEA0183 format to a single chip microcomputer module by a BDS receiver for processing;
the unmanned aerial vehicle flight direction decoy remote control system starts a deception signal generation subsystem and controls a display screen to display corresponding indication information;
after a deception signal generation subsystem is started, a navigation deception algorithm on the DSP is used for completing deception, wherein the navigation deception algorithm comprises deception signal synchronization and deception signal traction;
deception navigation signals can be used for remotely controlling the flight direction of the unmanned aerial vehicle at any time through the unmanned aerial vehicle flight direction decoy remote control system, the unmanned aerial vehicle is induced to a safe region to be disposed, the deception signal generation subsystem generation system sets the initial speed and the reference coordinate position of the corresponding direction for the unmanned aerial vehicle according to the received direction instructions, so that a dynamic scene is simulated, the unmanned aerial vehicle is decoyed to fly towards the target direction, the unmanned aerial vehicle is induced to the safe region, and the broadband frequency hopping interference module is used for triggering the black flying unmanned aerial vehicle to force to land.
Thereby adjust unmanned aerial vehicle signal frequency through multichannel radiant power fine setting technique module and get into the unmanned aerial vehicle internal system and adjust thereby get into unmanned aerial vehicle database system to unmanned aerial vehicle signal frequency, thereby PID trail tracking induces the technique module and conveniently acquires unmanned aerial vehicle's right of authority control, and the database is convenient to be stored unmanned aerial vehicle information.
2. The utility model provides an antenna system takes place for unmanned aerial vehicle navigation decoy signal which characterized in that: the system comprises;
the radar detection system is used for monitoring the current position and UTC time of the unmanned aerial vehicle in real time to obtain the time and position information of the current unmanned aerial vehicle; the method is also used for storing the current ephemeris;
the processor is used for controlling the photoelectric equipment to acquire an unmanned aerial vehicle image based on the unmanned aerial vehicle position information;
the operation platform is used for calculating the real visible satellite pseudo-range information of the current position of the unmanned aerial vehicle to each day according to the ephemeris parameters in the current ephemeris updating range and the position and time information of the unmanned aerial vehicle;
a deception signal generation subsystem, which is used for converting the current UTC time of the unmanned aerial vehicle into atomic time, and then simulating in real time to generate deception signals according to the atomic time, the position information and the real visible star pseudo-range information corresponding to the current time;
the unmanned aerial vehicle flight direction decoy remote control system comprises a single chip microcomputer module, a clock chip module, a BDS receiver module, a key module, a display module and a storage module, wherein the clock chip module, the BDS receiver module, the key module, the display module and the storage module are electrically connected with the single chip microcomputer module;
the clock chip module is used for providing real-time and sending real-time data to the singlechip module; the BDS receiver module is used for receiving the BDS satellite signals, resolving positioning data in the BDS signals, converting resolving results into an NMEA0183 format and sending the NMEA0183 format to the single chip microcomputer module; the key module is used for sending corresponding instructions to the single chip microcomputer by starting different keys; the display module is used for displaying corresponding instruction information when the keys of the key module are started; the storage module is used for storing data transmitted by the single chip microcomputer module; the single chip microcomputer module is used for processing resolving result data sent by the BDS receiver and sending a processing result to the deception signal generation subsystem;
the multi-channel radiation power fine-tuning technology module is used for adjusting the signal frequency of the unmanned aerial vehicle so as to enter an internal system of the unmanned aerial vehicle;
the PID trajectory tracking induction technology module can flexibly deal with the unmanned aerial vehicle such as no-fly, stop, landing, decoy navigation and the like;
the anti-reconnaissance authority module copies data collected in the unmanned aerial vehicle;
the database is used as a storage unit to store the acquired data in real time and upload the data to the cloud to prevent data loss.
3. The unmanned aerial vehicle navigation decoy signal generation antenna system of claim 2, characterized in that: the spoof signal is obtained by: determining a satellite that is available to generate a spoofed signal; calculating a carrier phase, a code phase, a carrier NCO and a code NCO of a satellite which can be used for generating deception signals to generate carrier waves and pseudo codes; modulating the text, the pseudo code and the carrier wave to generate the spoofed signal, wherein the method for determining the satellite which can be used for generating the spoofed signal comprises the following steps: and comparing the pseudo range of the simulated visible satellite with the pseudo range information of the real visible satellite one by one, and when the error between the pseudo range of the simulated visible satellite and the pseudo range information of the real visible satellite is less than a ranging code chip, determining that the satellite can be used for generating a deception signal.
4. The unmanned aerial vehicle navigation decoy signal generation antenna system of claim 2, characterized in that: when the processor judges that the unmanned aerial vehicle in the image is the decoy target based on the unmanned aerial vehicle image, the processor controls the decoy device to decoy the decoy target until the decoy target lands at a specified position.
5. The unmanned aerial vehicle navigation decoy signal generation antenna system of claim 2, characterized in that: the deception signal generation subsystem comprises a DSP module, an FPGA module and a D/A module; the DSP module is used for simulating and generating deception signals in real time according to the atomic time corresponding to the current UTC moment of the unmanned aerial vehicle, the coordinate information under the earth-centered earth-fixed rectangular coordinate system corresponding to the current position of the unmanned aerial vehicle and the pseudo-range information of the unmanned aerial vehicle at the current position to each visible star; the deception signal generation subsystem is also used for comparing pseudo-range information of the simulated visible star with pseudo-range information of the real visible star, and when the error of the pseudo-range information of the simulated visible star and the pseudo-range information of the real visible star is smaller than a set error, the satellite is considered to be available for the generation of deception signals; the DSP module is also used for calculating the telegraph text writing, carrier initial phase, code initial phase, carrier NCO and code NCO of the deception satellite. The FPGA module is used for carrying out carrier generation and code generation according to the carrier initial phase, the code initial phase, the carrier NCO and the value of the code NCO, and finally modulating the text, the pseudo code and the carrier to generate a deception signal; and the D/A module is used for performing digital-to-analog conversion on the signals regulated by the FPGA module to generate analog intermediate frequency signals.
6. The unmanned aerial vehicle navigation decoy signal generation antenna system of claim 2, characterized in that: the anti-reconnaissance authority module comprises an IP information acquisition module and an automatic positioning recording module, the IP information acquisition module acquires address information according to the intercepted satellite information, and the automatic positioning recording module performs positioning processing according to the satellite information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211248860.8A CN115480272A (en) | 2022-10-12 | 2022-10-12 | Unmanned aerial vehicle navigation decoy signal generation antenna method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118050751A (en) * | 2024-04-15 | 2024-05-17 | 江西鉴真防务技术有限公司 | Unmanned aerial vehicle induction method and system based on position spoofing |
| CN118409601A (en) * | 2024-06-26 | 2024-07-30 | 烟台欣飞智能系统有限公司 | Unmanned aerial vehicle capturing system based on navigation decoy technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118050751A (en) * | 2024-04-15 | 2024-05-17 | 江西鉴真防务技术有限公司 | Unmanned aerial vehicle induction method and system based on position spoofing |
| CN118409601A (en) * | 2024-06-26 | 2024-07-30 | 烟台欣飞智能系统有限公司 | Unmanned aerial vehicle capturing system based on navigation decoy technology |
| CN118409601B (en) * | 2024-06-26 | 2024-09-17 | 烟台欣飞智能系统有限公司 | Unmanned aerial vehicle capturing system based on navigation decoy technology |
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