KR101278108B1 - Data link of large amounts of antenna tracking recovery device and method - Google Patents

Abstract

PURPOSE: A massive data link antenna tracing recovery device and a method are provided to easily grasp the location of an airplane by using special communication devices when an aircraft is not traceable. CONSTITUTION: A ground antenna tracer traces airplanes based on signal. A first beam width antenna receives a first declining link reception signal. A second beam width antenna receives a second declining link reception signal. An aircraft control information generator generates aircraft control information. A duplexer combines uplink transmission signal and downlink reception signal. [Reference numerals] (AA) Aircraft control information generator; (BB) Uplink transmission receiver; (CC) Duplexer; (DD) Narrow beam width ground antenna; (EE) Ground antenna tracer; (FF) Wide beam width ground antenna; (GG) Large scale image information receiver; (HH) Aircraft location/condition information receiver; (II) Downlink variable receiver; (JJ) Downlink receiving antenna selector

Description

Mass data link antenna tracking recovery device and method {DATA LINK OF LARGE AMOUNTS OF ANTENNA TRACKING RECOVERY DEVICE AND METHOD}

The present invention relates to a mass data link antenna tracking recovery apparatus and method capable of tracking an antenna of an aircraft.

As the importance of network-centered warfare has been emphasized, the necessity of developing a data link technology for video information that transmits large amounts of video information acquired from manned or unmanned aircraft to distant areas as a technology to accurately and quickly secure friendly and enemy situations. This is emerging.

Image Information Datalinks using aircraft can quickly acquire information from remote areas. Real-time video information is more advantageous for situation determination than voice or text information. On the other hand, large-capacity image information requires a wide frequency band, high reception power, and must be received at a distant distance, so an aircraft communication device equipped with a data link for image information must transmit image information at a high output.

Due to the increased weight, size, and power consumption of high output transmitters, there are many restrictions on mounting on aircraft with limited space and power. Therefore, the aircraft communication device transmitting the image information data link over a long distance to maximize the antenna gain of the aircraft communication device and the terrestrial communication device to maximize the required communication distance. In particular, terrestrial communication devices, which have less limits on size, weight, and power consumption than aircraft, use an antenna with a very high antenna gain instead of a narrow beam width.

In wireless communication, the transmitter and the receiver must overlap the beamwidths of the two antennas to form a communication link. Even if there is an antenna of the terrestrial communication device within the beamwidth of the aircraft antenna, if there is no aircraft antenna within the beamwidth of the terrestrial communication device antenna, the communication link is not configured, and vice versa, a communication link cannot be formed.

The antenna of the aircraft may direct the aircraft antenna in the direction of the ground communication device by comparing the current position of the aircraft with the position of the fixed ground communication device.

On the other hand, since the ground communication device cannot know the position of the aircraft until the communication link is established and receives the position information of the aircraft, the ground communication device is directed to the ground communication device antenna toward the point where the signal power transmitted by the aircraft antenna to the ground communication device is high. In addition, a signal-based antenna tracking method such as monopulse tracking and conical tracking, which moves the ground communication device antenna direction according to the movement of the aircraft, is used.

The technique of tracking aircraft antennas moving at high speeds with very narrow beamwidths of terrestrial communication antennas has very high technical difficulty, and in actual operation, the ground communication device antennas may cause the aircraft antennas to instantaneously If you miss.

If the ground communication antenna misses the tracking of the aircraft antenna temporarily, signal-based antenna tracking can be restored by using a method of scanning if a signal transmitted by the aircraft antenna is received in an area adjacent to the point where the tracking is lost.

However, because the narrow beamwidth of the terrestrial communication antennas narrows the scanning range per hour, the terrestrial communication antennas will not be able to reach the ground-based antennas because the signal-based antenna tracking departure time of the terrestrial communication antennas increases. Antenna tracking cannot be recovered on a signal basis.

If the antenna of the aircraft transmitting the video information data link is completely missed by the antenna of the ground communication device, in the case of a manned aircraft, the antenna of the ground communication device is manually directed or the position of the antenna is determined by voice communication with the pilot. It uses a method to recover the signal-based antenna tracking by moving the aircraft. In the case of an unmanned aircraft, the aircraft is moved to a pre-programmed location to recover signal-based tracking, or signal-based antenna tracking is restored by informing the ground communication device of the aircraft's location with a separate low-frequency communications device.

Moving to a previously promised location and restoring signal-based antenna tracking is a major problem for mission continuity because it requires stopping the current surveillance reconnaissance mission and requiring time to recover signal-based antenna tracking. do.

The method of informing the ground communication device of the position of the aircraft as a communication device separate from the image information datalink increases the space and weight mounted on the aircraft due to the additional communication device and antennas on the aircraft and the ground communication device, and separate communication device. The frequency band for operating the system should be secured. In addition, in order to manually input or automatically input the position information of the aircraft secured by a separate communication device to the ground communication device antenna of the image information data link, an interface between the separate communication device and the ground communication device antenna of the image information data link is required. It must be added.

It is an object of the present invention to provide a large data link antenna tracking recovery apparatus and method capable of re-tracking an aircraft based on a signal if the aircraft cannot be signal-based.

One embodiment of the present invention relates to a terrestrial communication device capable of tracking an aircraft antenna. The large-capacity data link antenna tracking recovery apparatus according to an embodiment of the present invention tracks an aircraft based on a signal to control the direction of the first beamwidth antenna, and determines maintenance and departure of the signal-based tracking of the first beamwidth antenna. Receive the aircraft position information and state information from an aircraft position and state information receiver upon departure of signal-based tracking, direct the first beamwidth antenna in the direction of the aircraft according to the position information of the aircraft, and receive downlink A terrestrial antenna tracker for determining an antenna to be selected by the antenna selector and for determining a transmission capacity to be received by the downlink variable receiver; A first beamwidth antenna directed in a direction controlled by the terrestrial antenna tracker, transmitting an uplink transmission signal including aircraft control information and receiving a first downlink reception signal; If the aircraft is mechanically coupled to an upper portion of the first beamwidth antenna and directed in the same direction as the first beamwidth antenna, receives a second downlink received signal, and the aircraft is outside the beamwidth of the first beamwidth antenna, the aircraft A second beamwidth antenna for receiving the aircraft position information and status information from the second antenna; A downlink receiving antenna selector for selecting any one of first and second downlink received signals received from the first and second beamwidth antennas according to the determination of the terrestrial antenna tracker; A downlink variable receiver that selects a transmission capacity of the downlink based on the determination of the terrestrial antenna tracker and receives the aircraft position information and state information; An aircraft position and state information receiver for receiving the aircraft position information and state information from the downlink variable receiver and transmitting the position information of the aircraft to the ground antenna tracker; An aircraft control information generator for generating the aircraft control information for controlling the aircraft and generating information for controlling downlink transmission capacity of an aircraft communication device; A duplexer for coupling an uplink transmission signal and a downlink reception signal to the first beamwidth antenna; And an uplink transmitter for receiving the aircraft control information from the aircraft control information generator and generating the uplink transmission signal.

The terrestrial antenna tracker may control a direction of the first beamwidth antenna such that the first beamwidth antenna tracks the aircraft on a signal-based basis when maintaining the signal-based tracking of the first beamwidth antenna. Upon departure of the signal-based tracking of one beamwidth antenna, the location information of the aircraft may be received from the aircraft location and status information receiver, and the first beamwidth antenna may be directed based on the received location information.

The downlink receive antenna selector may be configured to determine whether the downlink receive antenna selector receives the first downlink receive signal from the first beamwidth antenna based on the determination of the ground antenna tracker. And select the second downlink received signal received from the second beamwidth antenna upon departure of the signal based tracking of the first beamwidth antenna.

According to an embodiment, the downlink variable receiver may include the image information, the aircraft position information, and the state information when maintaining the signal-based tracking of the first beamwidth antenna based on the determination of the ground antenna tracker. The first downlink received signal may be selected, and the second downlink received signal including the aircraft position information and state information may be selected when the signal-based tracking of the first beamwidth antenna deviates.

In example embodiments, the duplexer may receive the Singlink link transmission signal from the uplink transmitter and combine the uplink transmission signal and the first downlink reception signal to the first beamwidth antenna.

Another embodiment of the present invention relates to an aircraft communication device included in an aircraft. In accordance with another aspect of the present invention, there is provided a high-capacity data link antenna tracking recovery apparatus, including: an uplink reception departure determiner for determining maintenance and departure of uplink reception, and determining whether to include image information in a downlink transmission signal; A downlink variable transmitter configured to transmit the downlink transmission signal by including or excluding the image information in the downlink based on the determination of the uplink reception departure determiner; An aircraft location and status information generator for generating location information and status information of the aircraft; A large capacity image information generator for generating the image information; An uplink receiver receiving an uplink reception signal to transmit aircraft control information to an aircraft control information receiver, and transmitting a reception state of the uplink reception signal to the uplink reception departure determiner; If the control command to receive the aircraft control information from the uplink receiver, and to restore the transmission capacity of the downlink transmission signal of the aircraft control information to a predetermined capacity is received, the received control command is released from the uplink reception An aircraft control information receiver for transmitting to a determiner; A duplexer for coupling the downlink transmission signal and the uplink reception signal to an aircraft antenna; An aircraft antenna tracker for receiving location information of the aircraft from the aircraft location and status information generator and controlling the aircraft antenna to track the ground communication device based on a position difference between the aircraft and a ground communication device; And an aircraft antenna for tracking the terrestrial communication device under control of the aircraft antenna tracker.

The downlink variable transmitter may include a first downlink including both the image information, the aircraft position information, and state information when the uplink reception is maintained based on the determination of the uplink reception departure determiner. A link transmission signal may be transmitted, and a second downlink transmission signal including the aircraft position information and state information may be transmitted when the uplink reception is deviated.

Another embodiment of the present invention is directed to a method for a terrestrial communication device to recover a large datalink antenna tracking. The method of restoring large datalink antenna tracking may include: determining, by a terrestrial antenna tracker of the terrestrial communication device, maintenance and departure of signal-based tracking of a first beamwidth antenna; From the first beamwidth antenna to the second beamwidth antenna, an antenna for receiving a downlink reception signal to receive a second downlink reception signal including aircraft position information and status information upon departure of the signal based tracking of the first beamwidth antenna Changing; Searching location information of an aircraft from the aircraft location information and state information included in the received second downlink received signal; The ground antenna tracker directing the first beamwidth antenna in a direction of the aircraft according to the positional information of the aircraft; Determining whether the terrestrial antenna tracker is capable of signal based tracking; Determining whether reception of an uplink of the aircraft communication device is normal; Changing a downlink receiving antenna to the first beamwidth antenna to receive a first downlink receiving signal including both image information and aircraft position information and status information; Transmitting an uplink transmission signal including aircraft control information requesting to change the downlink reception signal received from the aircraft communication device to a preset capacity; Checking whether the downlink received signal changed to the preset capacity is normally received; And transmitting, by the terrestrial communication device, an uplink transmission signal including aircraft control information indicating that the downlink reception signal is normally received, and completing signal-based tracking recovery of the terrestrial communication device.

In the large-capacity data link antenna tracking recovery apparatus according to an embodiment of the present invention, when the ground communication device antenna cannot track the antenna of the aircraft based on a signal, the location of the aircraft may be manually found by using a separate communication device. Alternatively, the aircraft can be located and recover signal-based antenna tracking without having to move the aircraft to its designated location.

1A to 1D are conceptual views illustrating an antenna tracking method of a terrestrial communication device and an aircraft according to an embodiment of the present invention.
2 is a block diagram illustrating a terrestrial communication device according to an embodiment of the present invention.
3A to 3C are flowcharts illustrating a process of recovering signal-based tracking by a terrestrial communication device according to an embodiment of the present invention.
4 is a block diagram showing an aircraft communication device according to an embodiment of the present invention.
5A and 5B are flowcharts illustrating a process of restoring signal-based tracking by an aircraft communication device according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

1A to 1D are conceptual views illustrating an antenna tracking method of a terrestrial communication device and an aircraft according to an embodiment of the present invention.

The present invention is to add a separate communication device to the ground communication device and the aircraft or to the designated location when the antenna of the ground communication device that tracks the aircraft antenna transmitting the image information datalink can not track the aircraft antenna based on the signal It has been proposed to allow terrestrial communications antennas to retrace aircraft antennas on a signal basis without moving them.

1A is a conceptual diagram illustrating a conventional signal based tracking.

Referring to FIG. 1A, an existing terrestrial communication device may include a first beamwidth antenna (also referred to as a 'narrow beamwidth antenna'). The first beamwidth antenna may track the aircraft antenna on a signal basis. In this case, the first beamwidth antenna may receive a large amount of image information from the aircraft. In addition, the first beamwidth antenna may receive aircraft location information and status information together with a large amount of image information from the aircraft.

FIG. 1B is a conceptual diagram illustrating a case in which tracking is deviated from a conventional signal based tracking.

Referring to FIG. 1B, since the conventional terrestrial communication device includes only the first beamwidth antenna, if the aircraft is out of the scan range of the terrestrial communication device antenna, the terrestrial communication device antenna cannot recover antenna tracking based on the signal.

1C is a conceptual diagram illustrating an example of transmitting a second beamwidth antenna (also referred to as a 'wide beamwidth antenna') and a low capacity downlink according to an embodiment of the present invention.

Referring to FIG. 1C, the terrestrial communication device according to the present invention may include a second beamwidth antenna in addition to the first beamwidth antenna. If the aircraft is out of the scan range of the terrestrial communication device antenna, the second beamwidth antenna may receive low-capacity information, ie, aircraft location information and status information, from the aircraft.

1D is a conceptual diagram illustrating an example of recovering signal-based aircraft antenna tracking according to an embodiment of the present invention.

Referring to FIG. 1D, the terrestrial communication device according to the present invention may include a second beamwidth antenna in addition to the first beamwidth antenna. If the aircraft is out of the scan range of the terrestrial communication device antenna, the second beamwidth antenna may receive location information and status information of the aircraft from the aircraft.

The ground antenna tracker may detect the location of the aircraft based on the location information and the status information of the aircraft received by the second beamwidth antenna. The terrestrial antenna tracker may direct the first beamwidth antenna to the position of the aircraft in order for the first beamwidth antenna to track the aircraft again on a signal basis. Accordingly, signal based aircraft antenna tracking can be restored.

That is, the present invention is mechanically coupled to the top of the first beamwidth antenna in the same direction as the first beamwidth antenna, in order to overcome the case where the first beamwidth antenna is unable to signal-track the aircraft antenna due to the very narrow beamwidth. It relates to a terrestrial communication device to which a small second beamwidth antenna is directed.

The ground communication apparatus according to the present invention receives aircraft position information and status information transmitted by an aircraft deviating from the beam width of the first beamwidth antenna to the ground communication device by the second beamwidth antenna, finds the position of the aircraft, and locates the position of the aircraft. It is aimed at directing the first beamwidth antenna of the terrestrial communication device so that the terrestrial communication device can trace back the aircraft antenna on a signal basis.

However, since the second beamwidth antenna has a lower antenna gain than the first beamwidth antenna, when the second beamwidth antenna receives a large amount of image information transmitted by the aircraft communication device, the reception power is too low to be received by the terrestrial communication device. There is no problem.

Therefore, when the terrestrial communication device uses the second beamwidth antenna, the aircraft communication device transmits only the low-capacity information of the aircraft position information and the state information, without transmitting the large-capacity image information. In the same communication scheme, the reduced transmission capacity reduces the frequency bandwidth and enables signal reception at lower sensitivity. Accordingly, if the transmission capacity is reduced by more than a gain difference between the first beamwidth antenna and the second beamwidth antenna of the terrestrial communication device, the second beamwidth antenna may also receive aircraft position information and state information without large-capacity image information.

The terrestrial communication device can continue to transmit the aircraft control information to the first beamwidth antenna while receiving the low-capacity aircraft position information and status information transmitted by the aircraft communication device to the second beamwidth antenna to find the position of the aircraft. By directing one beamwidth antenna in the direction of the aircraft, the aircraft antenna can be tracked on a signal basis.

After tracking and restoring the aircraft antenna on a signal basis, the aircraft communication device transmits a large amount of image information back to the terrestrial communication device and changes the terrestrial communication device back to the first beamwidth antenna so that the existing communication between the aircraft communication device and the terrestrial communication device is performed. The bidirectional link can be reconfigured.

2 is a block diagram illustrating a terrestrial communication device according to an embodiment of the present invention.

In FIG. 2, the aircraft control information generator, the uplink transmitter, and the duplexer operate the same whether or not the ground communication device is capable of signal-based tracking of the aircraft communication device.

The narrow beamwidth terrestrial antenna (hereinafter referred to as 'first beamwidth antenna') may track the aircraft on a signal basis. The first beamwidth antenna may be configured to direct in a direction controlled by the terrestrial antenna tracker, transmit an uplink transmission signal including aircraft control information, and receive a first downlink reception signal.

The wide beamwidth terrestrial antenna (hereinafter referred to as a 'second beamwidth antenna') may receive aircraft position information and status information from the aircraft when the aircraft is out of the beamwidth of the first beamwidth antenna. The second beamwidth antenna is coupled to an upper portion of the first beamwidth antenna, has a wider beamwidth than the first beamwidth antenna, and can receive a second downlink received signal.

The ground antenna tracker can usually signal based track an aircraft using the first beamwidth antenna. The ground antenna tracker may track the aircraft using the first beamwidth antenna based on the signal when the signal based antenna tracking is possible by determining maintenance and departure of the signal based tracking of the first beamwidth antenna.

The aircraft control information generator may generate aircraft control information for controlling an aircraft and may generate information for controlling downlink transmission capacity of the aircraft communication device.

The uplink transmitter may receive the aircraft control information from the aircraft control information generator and generate an uplink transmission signal.

The duplexer may receive a forward link transmission signal from an uplink transmitter and combine the uplink transmission signal and the first downlink reception signal to a first beamwidth antenna.

If the ground antenna tracker determines that the signal-based tracking of the first beamwidth antenna has deviated, the terrestrial communication device controls the following functions. The first downlink received signal received by the first beamwidth antenna and the second downlink received signal received by the second beamwidth antenna are selected so as to select a second downlink received signal received by the second beamwidth antenna, which is a wide beamwidth terrestrial antenna; It is possible to control the link antenna selector (also referred to as 'downlink receiving antenna selector').

In addition, the terrestrial antenna tracker may control the downlink variable receiver to receive low-capacity aircraft position information and status information.

The aircraft position and state information receiver is provided in the aircraft communication device, and receives the aircraft position information and the state information from the downlink variable receiver, and transmits the position information of the aircraft to the ground antenna tracker.

Similarly, the large-capacity image information generator is provided in the aircraft communication device, and can generate large-capacity image information.

3A to 3C are flowcharts illustrating a process of recovering signal-based tracking by a terrestrial communication device according to an embodiment of the present invention.

Referring to FIG. 3A, the terrestrial antenna tracker may signal based tracking an aircraft using a first beamwidth antenna. The ground antenna tracker may track the aircraft using the first beamwidth antenna based on the signal when the signal based antenna tracking is possible by determining maintenance and departure of the signal based tracking of the first beamwidth antenna.

Referring to FIG. 3B, when the signal-based antenna tracking deviates, the ground antenna tracker receives location information and status information of the aircraft, which is a low capacity signal, from the aircraft location and status information receiver by using the second beamwidth antenna, and receives the received information. And detect the position of the aircraft based on the first position, and direct the first beamwidth antenna to direct the position of the aircraft so that the first beamwidth antenna again tracks the aircraft on a signal basis. At this time, signal-based antenna tracking is a conventional antenna tracking method such as monopulse tracking and conical tracking that compares the received signal power. On the other hand, the ground antenna tracker changes the directing position of the ground antenna tracker when the second beamwidth antenna does not receive the location information and the status information of the aircraft which is the low capacity signal.

Referring to FIG. 3C, if the first beamwidth antenna is directed to the aircraft position, the ground antenna tracker may receive signal power high enough to track the aircraft antenna on a signal basis. Further, if the first beamwidth antenna is directed to the aircraft position, the uplink, which was previously broken, is recovered again and the aircraft communication device transmits the information 'uplink normal' to the ground communication device as the aircraft position information and status information.

If the ground antenna tracker determines that it can track the aircraft antenna on a signal basis and the aircraft position and status information receiver sends information "uplink normal" to the ground antenna tracker, the ground antenna tracker indicates that the aircraft communications device antenna tracking has been restored normally. After determining, the receiving antenna may be changed from the second beamwidth antenna to the first beamwidth antenna, and the downlink variable receiver may be changed to a large capacity.

Specifically, the terrestrial antenna tracker tracks an aircraft communication device antenna in a signal based tracking method. The terrestrial antenna tracker controls the downlink antenna selector to select one of the first and second downlink received signals respectively received from the first and second beamwidth antennas that are simultaneously receiving the downlink received signal. The terrestrial antenna tracker controls the downlink variable receiver to receive a large amount of image information along with aircraft position information and status information. The terrestrial antenna tracker transmits the information 'change the downlink to a large capacity' to the uplink as aircraft control information to control the aircraft communication device to transmit original large-capacity image information together with the aircraft position information and status information.

In this case, when the downlink variable receiver is capable of receiving a large signal, the terrestrial antenna tracker may transmit 'downlink normal' information to the uplink as aircraft control information. Accordingly, signal-based antenna tracking recovery can be completed. On the other hand, when the downlink variable receiver does not receive a large signal, the terrestrial antenna tracker transmits the information 'change the downlink to a large capacity' as the aircraft control information to the uplink.

4 is a block diagram showing an aircraft communication device according to an embodiment of the present invention.

In FIG. 4, the remaining components except the downlink variable transmitter always operate the same regardless of the uplink state from the ground communication device to the aircraft communication device. Additionally, the aircraft antenna tracker compares the fixed position of the ground communication device with the aircraft position received by the aircraft position and status information generator to control the aircraft antenna to point to the ground communication device.

The aircraft communication device transmits large-capacity image information, aircraft position information, and status information of the aircraft to the ground communication device in the downlink, receives the aircraft control information of the ground communication device in the uplink, and downgrades according to the maintenance and departure of the uplink. The transmission capacity of the link can be determined.

The uplink reception departure determiner may determine uplink reception maintenance and departure and determine whether to include a large amount of image information in the downlink.

The downlink variable transmitter may transmit the downlink by including or excluding a large amount of image information in the downlink according to the determination of the uplink reception departure determiner.

The aircraft location and status information generator may generate location information and status information of the aircraft.

The large-capacity image information generator may generate a large-capacity image information.

The uplink receiver may receive the uplink, transmit the aircraft control information to the aircraft control information receiver, and may transmit a reception state of the uplink to the uplink reception departure determiner.

When the aircraft control information receiver receives the aircraft control information from the uplink receiver and receives a control command to restore the downlink transmission capacity of the aircraft control information to a large capacity, the aircraft control information receiver may transmit the received command to the uplink reception departure determiner.

The duplexer may combine the downlink transmission signal and the uplink reception signal with the aircraft antenna.

The aircraft antenna tracker may receive the position of the aircraft from the aircraft position status information generator and control the aircraft antenna to track the ground communication device based on the position difference with the ground communication device.

The aircraft antenna may track ground communication devices under the control of an aircraft antenna tracker.

5A and 5B are flowcharts illustrating a process of restoring signal-based tracking by an aircraft communication device according to an embodiment of the present invention.

Referring to FIG. 5A, when the first beamwidth antenna of the terrestrial communication device loses the position of the aircraft, the uplink that the aircraft communication device needs to receive is interrupted, and the uplink is continued when the uplink interruption continues for a specified time or more. The link reception departure determiner sends an uplink reception departure determination to the downlink variable transmitter.

Referring to FIG. 5B, when the downlink variable transmitter receives an uplink reception departure determination, the low-capacity aircraft position information and state information having a very small capacity received from the aircraft position and state information generator is excluded except for the high-capacity image information received from the high-capacity image information generator. Only send on the downlink.

When the ground communication device receives the position information of the aircraft with a wide beamwidth ground antenna and aims at the aircraft communication device based on the position, the uplink reception departure determiner is the aircraft position and status information generator when the uplink is received and the reception is maintained for a certain period. By transmitting the information that the uplink is normal, the terrestrial communication device can receive the information that the uplink is normal.

The uplink reception departure determiner determines that the terrestrial communication device has completely recovered the signal-based tracking when the uplink is restored to normal and receives the information 'change the downlink to a large capacity' from the aircraft control information of the ground communication device. The variable transmitter controls the original large-capacity image information to be transmitted along with the aircraft position information and status information.

Subsequently, upon receiving the information 'downlink normal' as the aircraft control information, the restoration of the downlink large capacity signal transmission is completed.

The apparatus and method for tracking and recovering a large-capacity data link antenna as described above may not be limitedly applied to the configuration and method of the above-described embodiments. It may be configured in combination.

Claims (8)

In a terrestrial communication device capable of tracking an aircraft antenna:
By tracking the aircraft on a signal basis to control the direction of the first beamwidth antenna, determine the maintenance and departure of the signal-based tracking of the first beamwidth antenna, the aircraft position and the position of the aircraft from the aircraft position and status information receiver upon departure of the signal-based tracking Receive information and status information, direct the first beamwidth antenna in the direction of the aircraft according to the positional information of the aircraft, determine an antenna to be selected by a downlink receiving antenna selector, and transmit that the downlink variable receiver will receive A terrestrial antenna tracker for determining capacitance;
A first beamwidth antenna directed in a direction controlled by the terrestrial antenna tracker, transmitting an uplink transmission signal including aircraft control information and receiving a first downlink reception signal;
If the aircraft is mechanically coupled to an upper portion of the first beamwidth antenna and directed in the same direction as the first beamwidth antenna, receives a second downlink received signal, and the aircraft is outside the beamwidth of the first beamwidth antenna, the aircraft A second beamwidth antenna for receiving the aircraft position information and status information from the second antenna;
A downlink receiving antenna selector for selecting any one of first and second downlink received signals received from the first and second beamwidth antennas according to the determination of the terrestrial antenna tracker;
A downlink variable receiver that selects a transmission capacity of the downlink based on the determination of the terrestrial antenna tracker and receives the aircraft position information and state information;
An aircraft position and state information receiver for receiving the aircraft position information and state information from the downlink variable receiver and transmitting the position information of the aircraft to the ground antenna tracker;
An aircraft control information generator for generating the aircraft control information for controlling the aircraft and generating information for controlling downlink transmission capacity of an aircraft communication device;
A duplexer for coupling an uplink transmission signal and a downlink reception signal to the first beamwidth antenna; And
And an uplink transmitter for receiving the aircraft control information from the aircraft control information generator and generating the uplink transmission signal. The method of claim 1,
The terrestrial antenna tracker,
Control the direction of the first beamwidth antenna such that the first beamwidth antenna tracks the aircraft signal based on maintaining the signal based tracking of the first beamwidth antenna,
Receiving the position information of the aircraft from the aircraft position and state information receiver upon departure of the signal based tracking of the first beamwidth antenna and directing the first beamwidth antenna based on the received position information; Large capacity datalink antenna tracking recovery device. 3. The method of claim 2,
The downlink receiving antenna selector,
Based on the determination of the terrestrial antenna tracker,
Select the first downlink received signal received from the first beamwidth antenna when maintaining signal based tracking of the first beamwidth antenna,
And recovering the second downlink received signal received from the second beamwidth antenna upon departure of the signal based tracking of the first beamwidth antenna. The method of claim 3, wherein
The downlink variable receiver,
Based on the determination of the terrestrial antenna tracker,
Selecting the first downlink received signal including both the image information and the aircraft position information and the state information when maintaining the signal-based tracking of the first beamwidth antenna,
And recovering the second downlink received signal including the aircraft position information and the state information when the signal-based tracking of the first beamwidth antenna deviates. The method of claim 4, wherein
The duplexer includes:
Receiving the directional link transmission signal from the uplink transmitter, and combining the uplink transmission signal and the first downlink reception signal to the first beamwidth antenna. In an aircraft communication device included in an aircraft:
An uplink reception departure determination unit determining uplink reception maintenance and departure and determining whether to include image information in the downlink transmission signal;
A downlink variable transmitter configured to transmit the downlink transmission signal by including or excluding the image information in the downlink based on the determination of the uplink reception departure determiner;
An aircraft location and status information generator for generating location information and status information of the aircraft;
A large capacity image information generator for generating the image information;
An uplink receiver receiving an uplink reception signal to transmit aircraft control information to an aircraft control information receiver, and transmitting a reception state of the uplink reception signal to the uplink reception departure determiner;
If the control command to receive the aircraft control information from the uplink receiver, and to restore the transmission capacity of the downlink transmission signal of the aircraft control information to a predetermined capacity is received, the received control command is released from the uplink reception An aircraft control information receiver for transmitting to a determiner;
A duplexer for coupling the downlink transmission signal and the uplink reception signal to an aircraft antenna;
An aircraft antenna tracker for receiving location information of the aircraft from the aircraft location and status information generator and controlling the aircraft antenna to track the ground communication device based on a position difference between the aircraft and a ground communication device; And
And an aircraft antenna for tracking the terrestrial communication device under control of the aircraft antenna tracker. The method according to claim 6,
The downlink variable transmitter,
Based on the determination of the uplink reception departure determiner,
Transmit a first downlink transmission signal including both the image information, the aircraft position information, and state information when the uplink reception is maintained;
And a second downlink transmission signal including the aircraft position information and the state information when the uplink reception deviates. A method for terrestrial communication devices to recover large datalink antenna tracking:
Determining, by the terrestrial antenna tracker of the terrestrial communication device, the maintenance and departure of signal-based tracking of the first beamwidth antenna;
From the first beamwidth antenna to the second beamwidth antenna, an antenna for receiving a downlink reception signal to receive a second downlink reception signal including aircraft position information and status information upon departure of the signal based tracking of the first beamwidth antenna Changing;
Searching location information of an aircraft from the aircraft location information and state information included in the received second downlink received signal;
The ground antenna tracker directing the first beamwidth antenna in a direction of the aircraft according to the positional information of the aircraft;
Determining whether the terrestrial antenna tracker is capable of signal based tracking;
Determining whether reception of an uplink of the aircraft communication device is normal;
Changing a downlink receiving antenna to the first beamwidth antenna to receive a first downlink receiving signal including both image information and aircraft position information and status information;
Transmitting an uplink transmission signal including aircraft control information requesting to change the downlink reception signal received from the aircraft communication device to a preset capacity;
Checking whether the downlink received signal changed to the preset capacity is normally received; And
A mass data link including transmitting, by the terrestrial communication device, an uplink transmission signal including aircraft control information indicating that the downlink reception signal is normally received, and completing signal-based tracking recovery of the terrestrial communication device; Antenna tracking recovery method.

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