CN113251994A - Device and method for detecting transmitting direction of mobile communication phased array antenna - Google Patents
Device and method for detecting transmitting direction of mobile communication phased array antenna Download PDFInfo
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- CN113251994A CN113251994A CN202110694919.5A CN202110694919A CN113251994A CN 113251994 A CN113251994 A CN 113251994A CN 202110694919 A CN202110694919 A CN 202110694919A CN 113251994 A CN113251994 A CN 113251994A
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
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- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
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- G01R29/10—Radiation diagrams of antennas
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Abstract
The invention discloses a device and a method for detecting the emission and the pointing of a phase array antenna in motion communication, wherein the device comprises an unmanned aerial vehicle, airborne equipment and an unmanned aerial vehicle ground station, wherein the unmanned aerial vehicle ground station is connected and communicated with the phase array antenna; the airborne equipment comprises a cradle head, an antenna signal processing module, a controller, a sensing module and a data transmission radio station, wherein the cradle head is loaded with a transmitting horn antenna and a receiving horn antenna, and the antenna signal processing module is electrically connected with the transmitting horn antenna, the receiving horn antenna and the data transmission radio station; the controller is connected with the sensing module, the holder and the data transmission radio station; cloud platform and sensing module are connected to the data radio station respectively, data radio station and unmanned aerial vehicle ground satellite station wireless connection communication. According to the invention, the receiving horn antenna and the transmitting horn antenna are carried by the unmanned aerial vehicle, the phased array antenna is adjusted, the pointing accuracy is obtained by comparing the signal strength received by the receiving horn antenna, and the detection result is accurate and reliable.
Description
Technical Field
The invention relates to an antenna transmission direction detection device and a detection method thereof, in particular to a mobile communication phased array antenna transmission direction detection device and a detection method thereof.
Background
The orientation of the transmitting and receiving arrays of the on-board communication-in-motion phased array antenna has inconsistency, i.e. the transmitting and receiving orientations need to be detected and calibrated respectively. In a marine environment, a geostationary satellite is generally used to detect and calibrate the reception orientation of a phased array antenna, while the transmission orientation of a phased array antenna cannot be detected and calibrated by a geostationary satellite. Therefore, it is very necessary to design a device and a method for detecting the transmission direction of a phased array antenna.
Disclosure of Invention
The invention aims to provide a device and a method for detecting the transmitting direction of a communication-in-motion phased array antenna, which are used for detecting the transmitting direction of the phased array antenna.
The invention provides a device for detecting the transmitting and pointing directions of a communication-in-motion phased array antenna, which solves the technical problems and comprises an unmanned aerial vehicle, airborne equipment and an unmanned aerial vehicle ground station, wherein the unmanned aerial vehicle ground station is connected and communicated with the phased array antenna; the airborne equipment is loaded on the unmanned aerial vehicle and comprises a cradle head, an antenna signal processing module, a controller, a sensing module and a data transmission radio station, wherein the cradle head is loaded with a transmitting horn antenna and a receiving horn antenna, and the antenna signal processing module is electrically connected with the transmitting horn antenna, the receiving horn antenna and the data transmission radio station; the controller is connected with the sensing module, the holder and the data transmission radio station; cloud platform and sensing module are connected to the data radio station respectively, data radio station and unmanned aerial vehicle ground satellite station wireless connection communication.
Further, the ground station of the unmanned aerial vehicle transmits a control signal through a data transmission radio station to control the holder to adjust the directions of the transmitting horn antenna and the receiving horn antenna; the controller performs self-stabilization control on the holder; the antenna signal processing module acquires and processes signals received by the receiving horn antenna; and the antenna signal processing module sends the transmitting signal data to the transmitting horn antenna for sending.
Further, the sensing module comprises a GNSS positioning unit, an altimeter, a direction sensor and an attitude sensor; the GNSS positioning unit measures the position information of the unmanned aerial vehicle and comprises longitude and latitude information; the altimeter measures altitude information of the unmanned aerial vehicle; the direction sensor measures the head direction of the unmanned aerial vehicle; the attitude sensor measures attitude information of the unmanned aerial vehicle; the sensing module sends measured data information to the controller, and simultaneously sends the measured data information to the unmanned aerial vehicle ground station through the data transmission radio station.
Furthermore, the phased array antenna is loaded with a GNSS dual-antenna module, an attitude sensor and a height sensor, the GNSS dual-antenna module measures azimuth information and position information of the phased array antenna, and the position information comprises longitude and latitude information; the attitude sensor measures attitude information of the phased array antenna; the height sensor measures height information of the phased array antenna.
Further, unmanned aerial vehicle is provided with the airborne battery, airborne battery supplies power for airborne equipment and unmanned aerial vehicle.
The present invention adopts another technical solution to solve the above technical problems, and provides an open loop tracking detection method for a mobile communication phased array antenna transmission direction detection apparatus, including the following steps: s101: the method comprises the steps that an unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the unmanned aerial vehicle, attitude information of a holder and longitude and latitude, direction, attitude and height information of a phased array antenna, and the relative position of a receiving horn antenna and the phased array antenna is obtained through calculation; s102: the ground station of the unmanned aerial vehicle controls the holder to enable the receiving horn antenna to point to the phased array antenna; the controller is used for carrying out self-stabilization control on the holder; simultaneously controlling the phased array antenna to enable the phased array antenna to scan around the receiving horn antenna and transmit signals; s103: the ground station of the unmanned aerial vehicle acquires a real-time signal received by a receiving horn antenna through a data transmission radio station; recording the maximum value of the signal intensity as a reference value; s104: controlling the communication-in-motion phased array antenna to point to a receiving horn antenna and sending a signal; s105: the unmanned aerial vehicle ground station reads the real-time signal intensity value of the airborne receiving horn antenna through the data transmission radio station; s106: and comparing the real-time signal intensity value obtained in the step S105 with the reference value obtained in the step S103, calculating an attenuation value of the real-time signal intensity value with respect to the reference value, and further calculating the open-loop tracking pointing accuracy.
Further, in the step S101, the ground station of the unmanned aerial vehicle acquires longitude and latitude, direction, attitude, height information of the unmanned aerial vehicle and attitude information of the pan/tilt head from the sensing module through the data transmission radio station; the unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the phased array antenna from the GNSS double-antenna module, the attitude sensor and the height sensor loaded by the phased array antenna.
Further, the step S102 of performing stable control on the pan/tilt head by the controller includes: the controller acquires unmanned aerial vehicle's height, position and gesture information, and the controller control cloud platform compensates unmanned aerial vehicle gesture change, makes the receiving horn antenna on the cloud platform keep the gesture stable and last directional phased array antenna promptly.
The third technical solution adopted by the present invention to solve the above technical problems is to provide a closed loop tracking detection method for a mobile communication phased array antenna transmission pointing detection device, comprising the following steps: s201: the method comprises the steps that an unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the unmanned aerial vehicle, attitude information of a holder and longitude and latitude, direction, attitude and height information of a phased array antenna, and the relative position of a receiving horn antenna and the phased array antenna is obtained through calculation; s202: the ground station of the unmanned aerial vehicle controls the tripod head of the unmanned aerial vehicle to enable the receiving horn antenna and the transmitting horn antenna to point to the phased array antenna; the controller is used for carrying out self-stabilization control on the holder; simultaneously controlling the phased array antenna to enable the phased array antenna to scan around the receiving horn antenna and transmit signals; s203: the ground station of the unmanned aerial vehicle acquires a real-time signal received by a receiving horn antenna through a data transmission radio station; recording the maximum value of the signal intensity as a reference value; s204, controlling the communication-in-motion phased array antenna to work in an automatic tracking mode, namely, the phased array antenna automatically receives and tracks the direction of the transmitting horn antenna and sends signals to the receiving horn antenna;
s205: the unmanned aerial vehicle ground station reads the real-time signal intensity value of the airborne receiving horn antenna through the data transmission radio station;
s206: comparing the real-time signal intensity value obtained in step S205 with the reference value obtained in step S203, calculating an attenuation value of the real-time signal intensity value with respect to the reference value, and further calculating the closed-loop tracking pointing accuracy.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a device and a method for detecting the transmitting direction of a communication-in-motion phased array antenna, wherein an unmanned aerial vehicle carries a receiving horn antenna and a transmitting horn antenna, the phased array antenna transmits signals around the receiving horn antenna, and the maximum signal intensity received by the receiving horn antenna is used as a comparison signal; comparing the signal intensity received by the receiving horn antenna with the maximum signal intensity when the phased array antenna points to the receiving horn antenna to obtain open-loop pointing accuracy; comparing the signal intensity received by the receiving horn antenna with the maximum signal intensity when the phased array antenna tracks the transmitting horn antenna to obtain closed loop pointing accuracy; the detection result is accurate and reliable.
Drawings
Fig. 1 is a schematic structural diagram of a mobile communication phased array antenna transmission direction detection apparatus according to an embodiment of the present invention;
FIG. 2 is a flowchart of an open-loop tracking detection method of the device for detecting the transmission direction of the communication-in-motion phased array antenna according to the embodiment of the present invention;
fig. 3 is a flowchart of a closed-loop tracking detection process of the mobile communication phased array antenna transmission pointing detection apparatus according to the embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic structural diagram of a mobile communication phased array antenna transmission direction detection apparatus according to an embodiment of the present invention.
Referring to fig. 1, the communication-in-motion phased array antenna emission pointing detection device in the embodiment of the present invention includes an unmanned aerial vehicle, an airborne device, and an unmanned aerial vehicle ground station, where the unmanned aerial vehicle ground station is connected to and communicates with the phased array antenna; the airborne equipment is loaded on the unmanned aerial vehicle and comprises a cradle head, an antenna signal processing module, a controller, a sensing module and a data transmission radio station, wherein the cradle head is loaded with a transmitting horn antenna and a receiving horn antenna, and the antenna signal processing module is electrically connected with the transmitting horn antenna, the receiving horn antenna and the data transmission radio station; the controller is connected with the sensing module, the holder and the data transmission radio station; cloud platform and sensing module are connected to the data radio station respectively, data radio station and unmanned aerial vehicle ground satellite station wireless connection communication.
Specifically, the ground station of the unmanned aerial vehicle transmits a control signal through a data transmission radio station to control a holder to adjust the directions of a transmitting horn antenna and a receiving horn antenna; the controller performs self-stabilization control on the holder; the antenna signal processing module acquires and processes signals received by the receiving horn antenna; and the antenna signal processing module sends the transmitting signal data to the transmitting horn antenna for sending.
Specifically, the sensing module comprises a GNSS positioning unit, an altimeter, a direction sensor and an attitude sensor; the GNSS positioning unit measures the position information of the unmanned aerial vehicle and comprises longitude and latitude information; the altimeter measures altitude information of the unmanned aerial vehicle; the direction sensor measures the head direction of the unmanned aerial vehicle, and can be a magnetometer or a dual-antenna GNSS; the attitude sensor measures attitude information of the unmanned aerial vehicle; the sensing module sends measured data information to the controller, and simultaneously sends the measured data information to the unmanned aerial vehicle ground station through the data transmission radio station.
Specifically, a GNSS dual-antenna module, an attitude sensor and a height sensor are loaded on a phased array antenna, the GNSS dual-antenna module measures azimuth information and position information of the phased array antenna, and the position information comprises longitude and latitude information; the attitude sensor measures attitude information of the phased array antenna; the height sensor measures height information of the phased array antenna
Specifically, unmanned aerial vehicle is provided with the airborne battery, airborne battery supplies power for airborne equipment and unmanned aerial vehicle.
Referring to fig. 2, the open-loop tracking detection method for the mobile communication phased array antenna transmission direction detection apparatus according to the embodiment of the present invention includes the following steps:
s101: the method comprises the steps that an unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the unmanned aerial vehicle, attitude information of a holder and longitude and latitude, direction, attitude and height information of a phased array antenna, and the relative position of a receiving horn antenna and the phased array antenna is obtained through calculation;
the unmanned aerial vehicle ground station acquires longitude and latitude, direction, attitude and height information of the unmanned aerial vehicle and attitude information of a holder from the sensing module through the data transmission radio station; the unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the phased array antenna from the GNSS double-antenna module, the attitude sensor and the height sensor loaded by the phased array antenna.
The receiving horn antenna is fixed on the cradle head, and the cradle head can adjust the posture of the receiving horn antenna at will, namely, the receiving horn antenna points to any direction, and outputs the posture information of the cradle head.
S102: the ground station of the unmanned aerial vehicle controls the holder to enable the receiving horn antenna to point to the phased array antenna; the controller is used for carrying out self-stabilization control on the holder; simultaneously controlling the phased array antenna to enable the phased array antenna to scan around the receiving horn antenna and transmit signals;
carry out stable control to the cloud platform through the controller and include: the controller acquires unmanned aerial vehicle's height, position and gesture information, and the controller control cloud platform compensates unmanned aerial vehicle gesture change, makes the receiving horn antenna on the cloud platform keep the gesture stable and last directional phased array antenna promptly.
Determining the relative orientation of the unmanned aerial vehicle and the phased array antenna through the longitude and latitude and the height of the unmanned aerial vehicle and the phased array antenna; and then, the attitude of a cradle head (receiving horn antenna) and the attitude of the phased array antenna are obtained, so that how to adjust the wave beams of the cradle head and the phased array antenna can be determined, the wave beams of the receiving horn antenna and the phased array antenna are both pointed to each other, namely the receiving horn is pointed to the phased array, and the phased array antenna is pointed to the receiving horn.
S103: the ground station of the unmanned aerial vehicle acquires a real-time signal received by a receiving horn antenna through a data transmission radio station; recording the maximum value of the signal intensity as a reference value;
s104: controlling the communication-in-motion phased array antenna to point to a receiving horn antenna and sending a signal;
s105: the unmanned aerial vehicle ground station reads the real-time signal intensity value of the airborne receiving horn antenna through the data transmission radio station;
s106: and comparing the real-time signal intensity value obtained in the step S105 with the reference value obtained in the step S103, calculating an attenuation value of the real-time signal intensity value with respect to the reference value, and further calculating the open-loop tracking pointing accuracy.
Referring to fig. 3, the closed-loop tracking detection method for the mobile communication phased array antenna transmitting direction detection apparatus according to the embodiment of the present invention includes the following steps:
s201: the method comprises the steps that an unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the unmanned aerial vehicle, attitude information of a holder and longitude and latitude, direction, attitude and height information of a phased array antenna, and the relative position of a receiving horn antenna and the phased array antenna is obtained through calculation;
the method is the same as the open loop detection tracking method, in the step S101, the ground station of the unmanned aerial vehicle acquires longitude and latitude, direction, attitude, height information of the unmanned aerial vehicle and attitude information of the pan-tilt from the sensing module through the data transmission radio station; the unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the phased array antenna from the GNSS double-antenna module, the attitude sensor and the height sensor loaded by the phased array antenna.
S202: the ground station of the unmanned aerial vehicle controls the tripod head of the unmanned aerial vehicle to enable the receiving horn antenna and the transmitting horn antenna to point to the phased array antenna; the controller is used for carrying out self-stabilization control on the holder; simultaneously controlling the phased array antenna to enable the phased array antenna to scan around the receiving horn antenna and transmit signals;
the same as the open loop detection tracking method, the stable control of the holder by the controller comprises the following steps: the controller acquires unmanned aerial vehicle's height, position and gesture information, and the controller control cloud platform compensates unmanned aerial vehicle gesture change, makes the receiving horn antenna on the cloud platform keep the gesture stable and last directional phased array antenna promptly.
When unmanned aerial vehicle receives wind interference, gesture, height, position etc. can change, and the receiving horn antenna on the cloud platform is directional also to change thereupon. After the attitude sensor, the altimeter and the GNSS positioning unit measure the state change of the unmanned aerial vehicle, the controller automatically compensates the direction of the receiving horn antenna on the holder, so that the direction of the receiving horn antenna is kept stable.
Determining the relative orientation of the unmanned aerial vehicle and the phased array antenna through the longitude and latitude and the height of the unmanned aerial vehicle and the phased array antenna; then, the attitude of the holder (receiving horn antenna/transmitting horn antenna) and the attitude of the phased array antenna are obtained, and how to adjust the beam of the holder and the beam of the phased array antenna can be determined, so that the beam of the receiving horn antenna and the beam of the phased array antenna are both pointed to each other, namely, the receiving horn is pointed to the phased array antenna, and the phased array antenna tracks the transmitting horn antenna.
S203: the ground station of the unmanned aerial vehicle acquires a real-time signal received by a receiving horn antenna through a data transmission radio station; recording the maximum value of the signal intensity as a reference value;
s204, controlling the communication-in-motion phased array antenna to work in an automatic tracking mode, namely, the phased array antenna automatically receives and tracks the direction of the transmitting horn antenna and sends signals to the receiving horn antenna;
s205: the unmanned aerial vehicle ground station reads the real-time signal intensity value of the airborne receiving horn antenna through the data transmission radio station;
s206: comparing the real-time signal intensity value obtained in step S205 with the reference value obtained in step S203, calculating an attenuation value of the real-time signal intensity value with respect to the reference value, and further calculating the closed-loop tracking pointing accuracy.
In summary, according to the detection device and the detection method for the communication-in-motion phased array antenna transmission direction in the embodiment of the present invention, the receiving horn antenna and the transmitting horn antenna are carried by the unmanned aerial vehicle, the phased array antenna transmits signals around the receiving horn antenna, and the maximum signal strength received by the receiving horn antenna is used as a comparison signal; comparing the signal intensity received by the receiving horn antenna with the maximum signal intensity when the phased array antenna points to the receiving horn antenna to obtain open-loop pointing accuracy; comparing the signal intensity received by the receiving horn antenna with the maximum signal intensity when the phased array antenna tracks the transmitting horn antenna to obtain closed loop pointing accuracy; the detection result is accurate and reliable.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A communication-in-motion phased array antenna emission pointing detection device is characterized by comprising an unmanned aerial vehicle, airborne equipment and an unmanned aerial vehicle ground station, wherein the unmanned aerial vehicle ground station is connected with and communicates with a phased array antenna; the airborne equipment is loaded on the unmanned aerial vehicle and comprises a cradle head, an antenna signal processing module, a controller, a sensing module and a data transmission radio station, wherein the cradle head is loaded with a transmitting horn antenna and a receiving horn antenna, and the antenna signal processing module is electrically connected with the transmitting horn antenna, the receiving horn antenna and the data transmission radio station; the controller is connected with the sensing module, the holder and the data transmission radio station; cloud platform and sensing module are connected to the data radio station respectively, data radio station and unmanned aerial vehicle ground satellite station wireless connection communication.
2. The device for detecting the transmitting direction of the phase-array antenna in the motion communication according to claim 1, wherein the ground station of the unmanned aerial vehicle transmits a control signal through a data transmission radio station to control a holder to adjust the directions of the transmitting horn antenna and the receiving horn antenna; the controller performs self-stabilization control on the holder; the antenna signal processing module acquires and processes signals received by the receiving horn antenna; and the antenna signal processing module sends the transmitting signal data to the transmitting horn antenna for sending.
3. The device as claimed in claim 1, wherein the sensing module comprises a GNSS positioning unit, an altimeter, a direction sensor and an attitude sensor; the GNSS positioning unit measures the position information of the unmanned aerial vehicle and comprises longitude and latitude information; the altimeter measures altitude information of the unmanned aerial vehicle; the direction sensor measures the head direction of the unmanned aerial vehicle; the attitude sensor measures attitude information of the unmanned aerial vehicle; the sensing module sends measured data information to the controller, and simultaneously sends the measured data information to the unmanned aerial vehicle ground station through the data transmission radio station.
4. The communication-in-motion phased array antenna transmission direction detection device as claimed in claim 1, wherein the phased array antenna is loaded with a GNSS dual antenna module, an attitude sensor and an altitude sensor, the GNSS dual antenna module measures azimuth information and position information of the phased array antenna, and the position information includes latitude and longitude information; the attitude sensor measures attitude information of the phased array antenna; the height sensor measures height information of the phased array antenna.
5. The communication-in-motion phased array antenna transmission direction detection device of claim 1, wherein the unmanned aerial vehicle is provided with an onboard battery, and the onboard battery supplies power to onboard equipment and the unmanned aerial vehicle.
6. The open-loop tracking detection method of the communication-in-motion phased array antenna transmission pointing detection device according to any one of claims 1 to 5, characterized by comprising the steps of:
s101: the method comprises the steps that an unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the unmanned aerial vehicle, attitude information of a holder and longitude and latitude, direction, attitude and height information of a phased array antenna, and the relative position of a receiving horn antenna and the phased array antenna is obtained through calculation;
s102: the ground station of the unmanned aerial vehicle controls the holder to enable the receiving horn antenna to point to the phased array antenna; the controller is used for carrying out self-stabilization control on the holder; simultaneously controlling the phased array antenna to enable the phased array antenna to scan around the receiving horn antenna and transmit signals;
s103: the ground station of the unmanned aerial vehicle acquires a real-time signal received by a receiving horn antenna through a data transmission radio station; recording the maximum value of the signal intensity as a reference value;
s104: controlling the communication-in-motion phased array antenna to point to a receiving horn antenna and sending a signal;
s105: the unmanned aerial vehicle ground station reads the real-time signal intensity value of the airborne receiving horn antenna through the data transmission radio station;
s106: and comparing the real-time signal intensity value obtained in the step S105 with the reference value obtained in the step S103, calculating an attenuation value of the real-time signal intensity value with respect to the reference value, and further calculating the open-loop tracking pointing accuracy.
7. The detection method according to claim 6, wherein in step S101, the ground station of the drone obtains longitude and latitude, direction, attitude, height information of the drone and attitude information of the pan/tilt head from the sensing module through the data transmission station; the unmanned aerial vehicle ground station obtains longitude and latitude, direction, attitude and height information of the phased array antenna from the GNSS double-antenna module, the attitude sensor and the height sensor loaded by the phased array antenna.
8. The detection method according to claim 6, wherein the step S102 of performing stable control on the pan/tilt head by the controller comprises: the controller acquires unmanned aerial vehicle's height, position and gesture information, and the controller control cloud platform compensates unmanned aerial vehicle gesture change, makes the receiving horn antenna on the cloud platform keep the gesture stable and last directional phased array antenna promptly.
9. The closed-loop tracking detection method of the SOTM phased array antenna transmission pointing detection apparatus as claimed in any one of claims 1 to 5, comprising the steps of:
s201: the method comprises the steps that an unmanned aerial vehicle ground station obtains longitude and latitude information and height information of an unmanned aerial vehicle, longitude and latitude information and height information of a phased array antenna, and the relative direction of a horn antenna and the phased array antenna is obtained through calculation;
s202: the ground station of the unmanned aerial vehicle controls the tripod head of the unmanned aerial vehicle to enable the receiving horn antenna and the transmitting horn antenna to point to the phased array antenna; the controller is used for carrying out self-stabilization control on the holder; simultaneously controlling the phased array antenna to enable the phased array antenna to scan around the receiving horn antenna and transmit signals;
s203: the ground station of the unmanned aerial vehicle acquires a real-time signal received by a receiving horn antenna through a data transmission radio station; recording the maximum value of the signal intensity as a reference value;
s204, controlling the communication-in-motion phased array antenna to work in an automatic tracking mode, namely, the phased array antenna automatically receives and tracks the direction of the transmitting horn antenna and sends signals to the receiving horn antenna;
s205: the unmanned aerial vehicle ground station reads the real-time signal intensity value of the airborne receiving horn antenna through the data transmission radio station;
s206: comparing the real-time signal intensity value obtained in step S205 with the reference value obtained in step S203, calculating an attenuation value of the real-time signal intensity value with respect to the reference value, and further calculating the closed-loop tracking pointing accuracy.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034937A (en) * | 2021-11-18 | 2022-02-11 | 四川省冶勘设计集团有限公司 | Unmanned aerial vehicle aviation frequency domain electromagnetic weak signal receiving device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034937A (en) * | 2021-11-18 | 2022-02-11 | 四川省冶勘设计集团有限公司 | Unmanned aerial vehicle aviation frequency domain electromagnetic weak signal receiving device and method |
| CN114034937B (en) * | 2021-11-18 | 2022-03-25 | 四川省冶勘设计集团有限公司 | Unmanned aerial vehicle aviation frequency domain electromagnetic weak signal receiving device and method |
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