KR101062335B1 - Apparatus and method for pursuing moving launch objects signals - Google Patents

Abstract

The present invention relates to a system and method for tracking signals of a projectile, and more particularly, to a projectile signal tracking system and method for tracking the trajectory of a projectile by sensing a tear in the projectile.
To this end, the present invention provides a method for tracking a projectile signal in a projectile signal tracking device, detecting a thermal image of a projectile, calculating a position of the projectile based on the detected thermal image, and using the calculated projectile position. Adjusting a direction coordinate to face the projectile, sensing a signal transmitted by the projectile, and transmitting the detected signal.

Description

Mobile signal tracking device and method {APPARATUS AND METHOD FOR PURSUING MOVING LAUNCH OBJECTS SIGNALS}

The present invention relates to a device and a method for tracking a signal of a moving object, and more particularly, to a moving signal tracking device and method for tracking a signal transmitted from the moving object by detecting a thermal image of the moving object.

In general, antenna, which is an essential element of wireless communication, is not only mobile communication but also various high technology fields using electromagnetic waves such as radar, ECM / ECCM, telemetry, remote sensing, EMI / EMC measurement, broadcasting, radio astronomy, navigation, etc. It is widely used in all fields from to everyday life.

The antenna is classified into a transmitting antenna and a receiving antenna according to the purpose of use. The transmitting antenna radiates radio waves with characteristics of an electric signal supplied to the antenna in a desired direction efficiently. The receiving antenna is designed and manufactured to efficiently receive a desired characteristic and a radio wave in a desired direction among radio waves flowing from the space.

On the other hand, the characteristics of these antennas are usually determined by antenna gain, radiation pattern (directionality), polarization characteristics, antenna efficiency, G / T, and the like. In addition, the frequency band of the electromagnetic wave is gradually expanded to the high frequency / ultra high frequency band such as the millimeter wave region, and the development and use of many high performance (gain, directivity, polarization characteristics) and high performance antennas are required. Importance is increasing day by day.

Such antennas are also used for military purposes, for example, to track signals emitted by a projectile or to track signals emitted by a moving object such as a vehicle.

That is, the antenna may receive or detect a telemetry signal transmitted to a control center located on the ground through a telemetry system mounted in the projectile to obtain a current position and a trajectory path of the projectile.

1 is an exemplary view showing a conventional projectile signal tracking system.

As shown, the conventional projectile signal tracking system includes a moving projectile (120a ~ 120d), a first antenna system 110 for transmitting and receiving a signal periodically with the projectile, and a second antenna system for sensing the transmitted and received signal ( 130).

In such a conventional projectile signal tracking system, a target (eg, a rocket, a missile, etc.) periodically transmits or receives data or signals with an antenna of a central control center, ie, a first antenna system, that controls itself and controls a trajectory. The signal includes a telemetry signal, and the telemetry signal is a signal used for testing a projectile such as a state of the projectile and a projectile speed through GPS. Through this signal the projectile is controlled or controlled from the first antenna system. The signal includes positional information of the projectile, and the positional information includes information indicating the position of the projectile as well as information indicating the position of the projectile in space such as the longitude, latitude, altitude, and velocity of the target. As such, the first antenna system 110 may periodically receive the position information from the target, thereby determining the current position and state of the projectile. In addition, the first antenna system 110 is installed on the ground, can be installed without limitation on the size of the antenna, it is also possible to install a high-gain antenna. Thus, it is possible to receive a low telemetry signal (e.g. 5W) emitted from the projectile and track the projectile through the received telemetry signal.

In addition, the second antenna system 130 may detect a signal transmitted and received between the projectile and the first antenna system 110, that is, a telemetry signal. This is mainly to detect missiles or rockets fired from enemy or neighboring countries. That is, when the country managing the projectile and the first antenna system 110 in a combat situation is a neighboring country or owned by an enemy country, the second antenna system 120 detects this.

However, the second antenna system 130 for detecting a signal transmitted from the projectile to the first antenna system 110 to track the trajectory path of the projectile is mainly installed on the ground, and the tracking system using the antenna is a projectile. There is a problem that can not be accurately detected depending on the speed of the, the initial tracking failure, the automatic tracking failure during tracking, the direction of the wrong antenna or the power of the monitored signal is below the threshold.

In addition, the conventional projectile signal tracking system may not detect a signal according to an obstacle located around the projectile when the projectile moves. That is, as shown, it can be detected only after crossing the line (①) after the projectile is launched, it can not be detected before.

In addition, even if the projectile signal tracking system is mounted on the aircraft, since the size of the antenna of the projectile signal tracking system is limited, there is a problem that it is impossible to receive and track a telemetry signal having a low power.

Accordingly, the present invention provides a mobile signal tracking apparatus and method using a thermal device that detects the thermal image to accurately track the trajectory of the moving object in order to solve the above problems.

According to an aspect of the present invention, there is provided a projectile signal tracking device comprising: a thermal image detection unit detecting a thermal image of a projectile, a calculation unit calculating a position of the projectile based on the detected thermal image, and a calculated position of the projectile. Directional coordinates are adjusted to face the projectile through, an antenna for detecting a signal transmitted by the projectile, and a transceiver for transmitting the detected signal.

In addition, the present invention for achieving the above described in the projectile signal tracking method in a projectile signal tracking device, the process of detecting the thermal image of the projectile, the process of calculating the position of the projectile through the detected thermal image, the calculation And adjusting a direction coordinate to face the projectile through the position of the projectile, detecting a signal transmitted by the projectile, and transmitting the detected signal.

The present invention provides a mobile signal tracking device and method for detecting the thermal image of the moving object to track the trajectory of the moving object, thereby limiting the speed of the moving object, initial tracking failure, automatic tracking failure during tracking, wrong antenna direction or power of the monitored signal. Even if the value is less than the value can accurately track the moving object, it is possible to accurately detect the signal transmitted by the moving object.

1 is an exemplary view showing a conventional projectile signal tracking system.
2 is an exemplary view showing a projectile signal tracking system according to an embodiment of the present invention.
Figure 3 is a detailed configuration of the projectile signal tracking device according to an embodiment of the present invention.
Figure 4 is a flow chart illustrating a projectile signal tracking method through the thermal image detection according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the operating principle of the preferred embodiment of the present invention. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to a user, a user's intention or custom. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, the detailed description of the present invention has been described with respect to the projectile signal tracking that detects the laceration of the projectile and tracks the signal, but this is only an embodiment, the present invention is not only a projectile, but also mobility, such as a vehicle, a tank is guaranteed and transmits a signal Obviously, it can be applied to a moving object.

2 is an exemplary view showing a projectile signal tracking system according to an embodiment of the present invention.

As shown, the projectile signal tracking system according to the embodiment of the present invention includes a projectile (220a to 220d), a first antenna system 210 for periodically transmitting and receiving a signal with the projectile, and a first sensing signal for transmitting and receiving the signal. A two-antenna system 230 and a projectile signal tracking system mounted on the aircraft to detect the transmitted and received signals, and a projectile signal tracking system mounted on the aircraft and detecting a signal transmitted from the projectile. 250.

In the detailed description, the projectile signal tracking system 250 is mounted on the aircraft 240. However, the projectile signal tracking system 250 may be installed in a moving object such as a tank, an armored vehicle, etc., which is only an embodiment, and has mobility. And the projectiles 220a-220d and the 1st antenna system 210 belong to an enemy army, and since it demonstrated in the prior art, it abbreviate | omits.

Hereinafter, a projectile signal tracking system according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

When the projectile is launched, the projectile starts transmitting signals (①, ②, ③, ④) to the first antenna system 210. The ground-based second antenna system 230 starts tracking the projectile, but the second antenna system cannot track correctly because the projectiles 220b, 220c, which are located under the line ⑤, are hidden by the feature or mountain. . In this case, a projectile tracking request is made to the projectile tracking antenna system 250 mounted on the aircraft 240. The projectile tracking antenna system mounted on the aircraft 240 receiving the projectile tracking request tracks the projectile and detects a thermal image of the flame 221 ejected from the projectile. Then, the position information of the projectile is calculated, and the angle of the antenna provided in the projectile tracking antenna system is adjusted according to the calculated position information. The antenna is a high gain antenna and receives a telemetry signal emitted by the projectile. In this way, the projectile tracking antenna system can accurately track the projectile by adjusting the angle of the antenna to the projectile, and detect (6, ⑦, ⑧) the telemetry signal transmitted from the projectile. That is, the points for detecting the signal according to the position of the projectile are the same as A, B, C, and then the detected signal is transmitted to a friendly control center or the second antenna system 230.

In addition, the projectile tracking antenna system according to the present invention calculates the average value by repeatedly performing the process of adjusting the angle of the antenna by periodically calculating the position information of the projectile. In this way, when calculating the position information, the aircraft's own speed, altitude, latitude, longitude, and azimuth are reflected. By doing so, the direction of travel, speed, altitude, etc. of the projectile can be known, and the position after a predetermined time can be grasped in advance.

In addition, if the calculated average value is in a certain range, it is possible to track the projectile faster by adjusting the angle of the antenna according to the average value without calculating the position information. When the projectile is tracked through a series of processes, the projectile tracking antenna system 250 detects a telemetry signal transmitted by the projectile to the first antenna system 210. Then, the detected signal is transmitted to the second antenna system 230. This projectile tracking antenna system 250 is described in more detail in FIG. 3.

3 is a detailed block diagram of a projectile signal tracking device according to an embodiment of the present invention.

As shown, the projectile signal tracking device includes a thermal detection unit 310 for detecting the thermal image of the projectile through a flame ejected from the projectile to detect and track the projectile, and a calculation unit for calculating the position of the projectile through the detected thermal image. 340, an antenna unit 310 that adjusts the angle of the antenna, that is, the orientation coordinates of the antenna, toward the projectile according to the calculated position, and a signal detector 330 that detects a telemetry signal transmitted from the projectile. ), The transmission and reception unit 350 for transmitting and receiving the detected signal, and the overall control of the projectile signal tracking system, and to continuously track the high gain antenna of the antenna unit 310 through the calculated position information. Control the direction coordinates, adjust the antenna direction coordinates according to whether or not the average value of the controlled antenna direction coordinates falls within the critical range, or After the delay, a control unit 360 that controls the calculation of the position information of the projectile back.

In FIG. 3, the antenna unit 310 and the signal detector 330 are separately illustrated. However, this is only an example, and a module of the signal detector 330 may be provided in the antenna unit 310. Therefore, although the signal transmitted by the projectile can be monitored through the antenna unit 310, it will be described separately for convenience.

Hereinafter, a detailed configuration diagram of a projectile signal tracking device according to an embodiment of the present invention will be described in detail with reference to FIG. 3.

The projectile signal tracking device according to the present invention is installed in a mobile object, such as an aircraft, a tank, the mobility is guaranteed. Such a projectile signal tracking device starts tracking a projectile through the heat of flames received from or projected by an enemy or adjacent country from a friendly antenna system.

That is, the optical lens provided in the thermal detection unit 320 mounted on the projectile signal tracking device is directed to the projectile to track the projectile, and detects the flame of the projectile using infrared rays and tracks the projectile through it. The optical lens 360 is capable of omnidirectional rotation ⁰ as an optical lens of a high magnification, and is installed on the exterior of the mobile body. When the optical lens is directed to the projectile, the thermal image detector 320 detects the thermal image ejected from the projectile. As such, the device for detecting a thermal image of the projectile includes a plume detection device. Then, the calculator 340 calculates the position of the projectile through the thermal image detected by the thermal image detector 320 under the control of the controller 360. At this time, the exact position of the projectile is calculated through a calculation process of subtracting or adding the position of the projectile and the position for the projectile signal tracking device. In addition, the information including the position includes the altitude, speed, latitude, longitude, azimuth value of the moving object. In addition, the calculation unit 340 calculates and calculates the altitude, speed, latitude, longitude, azimuth value of the projectile. This position information includes not only the positional information of the projectile in space, such as the speed, altitude, latitude, longitude, and orientation of the projectile, but also the state information indicating the state of the projectile itself. The controller 360 controls the antenna coordinates 310 by controlling the antenna 310 according to the calculated position information. In addition, when the directing coordinates of the antenna are controlled, the controller 360 controls the optical device of the thermal detection unit 320 and the antenna to move in the same manner. In other words, the optics and the antenna point at the projectile at the same angle. As such, the process of calculating the position information and adjusting the orientation coordinates of the antenna according to the calculated position information may be performed repeatedly in small time units, or may be performed only once if the projectile can be continuously tracked.

In addition, the thermal image emitted from the projectile is detected, the positional information of the projectile is calculated by using the detected thermal image, and the orientation coordinates of the antenna are adjusted. Repeat the adjustment process to calculate the average value of the adjusted orientation coordinates. Thereafter, if the adjusted value of the coordinate is adjusted by the same value within the error range of the average value, the orientation coordinates of the antenna are adjusted by the average value in predetermined time units without calculating the position information of the projectile. As such, the projectile can be tracked more quickly and accurately by adjusting the direction coordinates of the antenna through the average value to track the projectile. As described above, the flame of the projectile is detected through the optical lens provided in the thermal detection unit 320 to track the projectile to calculate position information, and the orientation of the high gain antenna mounted to the antenna unit 310 is calculated through the calculated position information. By controlling the coordinates you can always match the line of sight (LOS) of the target and antenna.

When the projectile is tracked by adjusting the orientation coordinates of the antenna, the signal detector 330 detects a signal transmitted from the projectile. The signal is a signal transmitted and received between the projectile and the first radar system 210, and includes a telemetry signal.

4 is a flowchart illustrating a projectile signal tracking method through thermal image detection according to an exemplary embodiment of the present invention.

Hereinafter, a method for tracking a projectile signal through thermal image detection according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 4.

When a projectile that is not confirmed in an enemy country or an adjacent country is fired, a flying object equipped with a projectile signal tracking system detects a thermal image through a flame ejected from the projectile to track the projectile (S410, S412). Then, the position information of the projectile is calculated based on the detected thermal image information (S414). The position information includes information indicating the position of the projectile in space, and includes the speed, altitude, latitude, and longitude of the projectile. Then, the location information of the projectile and the location information of the aircraft itself are calculated. Then, the directed magnetic field of the antenna is adjusted according to the calculated position information (S416). The calculated positional information is obtained through distance, height difference, latitude and longitude difference from the aircraft itself.

In addition, when the antenna orientation coordinate value cut out in the process S416 is not optimal, the antenna orientation coordinate is corrected through the tracking result (S418). The correction is for optimizing the antenna orientation coordinates to track the projectile, and to minimize the error range. In operation S420, a signal emitted from the projectile is detected. When a signal to be emitted is detected, the detected signal is transmitted to the second antenna system 422. That is, when a signal is detected, the detected signal is transmitted to the second antenna system after filtering and amplifying processes are performed. These processes S412 ˜ S420 are not only executed once, but are repeatedly performed periodically.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (8)

In the projectile signal tracking device,
A thermal image detection unit for detecting a thermal image of the projectile,
A calculator configured to calculate a position of the projectile through the detected thermal image;
An orientation coordinate is adjusted to face the projectile through the calculated position of the projectile, and an antenna for detecting a signal transmitted by the projectile;
It includes a transceiver for transmitting the sensed signal,
And a control unit for controlling movement of the thermal detection unit and the antenna such that the thermal detection unit and the antenna face the projectile at the same angle when the position of the projectile is calculated.
According to claim 1, wherein the projectile signal tracking device
Projectile signal tracking device, characterized in that mounted on a mobile object guaranteed mobility.
The method of claim 1, wherein the calculation unit
The projectile signal tracking device for calculating the position of the projectile by calculating the position of the projectile and the position of the projectile signal tracking device.
delete The method of claim 1, wherein the thermal detection unit
Projectile signals tracking device, characterized in that it is equipped with a 360 ⁰ The optical lens as possible all-round rotation for detecting the laceration.
The method of claim 1, wherein the position is
A projectile signal tracking device comprising at least one of altitude, speed, latitude, longitude, and orientation.
In the projectile signal tracking device,
Detecting the thermal image of the projectile,
Calculating a position of the projectile based on the detected thermal image;
Controlling movement of the thermal detection unit and the antenna such that the thermal detection unit and the antenna for detecting the thermal image through the calculated position of the projectile face the projectile at the same angle;
Detecting a signal transmitted by the projectile;
Projectile signal tracking method comprising the step of transmitting the sensed signal.
The method of claim 7, wherein the calculating process
Projectile signal tracking method characterized in that for calculating the position of the projectile by calculating the position of the projectile and the position of the projectile signal tracking device.

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