KR-102963613-B1 - METHOD AND SYSTEM FOR LOCATION-BASED AUTOMATIC GAIN CONTROL IN WEAPON DATA LINK

KR102963613B1KR 102963613 B1KR102963613 B1KR 102963613B1KR-102963613-B1

Abstract

The present invention relates to a technology for improving the reception performance of weapon data link equipment, and more specifically, to a method and system for position information-based automatic gain control for weapon data links that can optimize reception performance by performing automatic gain control (AGC) based on position information, taking into account the operating conditions of weapon data link equipment operated in a harsh electromagnetic environment where various RF equipment, such as high-power radar, is operated together.

Inventors

이영준
박재수
송영환
김현수
강병욱

Assignees

한화시스템 주식회사

Dates

Publication Date: 20260513
Application Date: 20250626

Claims (12)

The process of generating location information of a guided weapon through a GPS receiver immediately after launch; A process of transmitting generated location information to a ground control station via a communication processor at predetermined time intervals; The above ground control station confirms and tracks the location of the above-mentioned guided weapon based on received location information; A process of selecting a reception path through an RF reception path selection unit in accordance with a request from the ground control station above; and A process in which an AGC (Automatic Gain Control) device automatically adjusts the gain value according to the selected receiving path to optimize the quality of the received signal; A position information-based automatic gain control method for armed data links including
In Article 1, The above-mentioned receiving path is selected as at least one of multiple antennas, multiple frequency bands, or multiple receiving circuits. A position information-based automatic gain control method for an armed data link.
In Article 1, The above RF reception path selection unit selects a reception path by considering at least one of the strength of the received signal, interference, speed of position change, or communication distance. Position information-based automatic gain control method for armed data links.
In Article 1, The above AGC device adjusts the gain of the amplifier in real time according to the environment of the selected receiving path and performs upper or lower limit correction for receiving strength above or below a predetermined threshold value, a position information-based automatic gain control method for armed data links.
In Article 1, A position information-based automatic gain control method for a weapon data link, wherein the position information of the above-mentioned guided weapon is periodically updated at intervals of n (n is a natural number) seconds through a communication processor.
In Article 5, A method for automatic gain control based on position information for a weapon data link, wherein the process of an RF reception path selection unit dynamically selecting a reception path in response to a request from the ground control station, and the process of an AGC device automatically adjusting a gain value according to the selected reception path to optimize the quality of the reception signal are repeated at every update cycle of the position information of the guided weapon.
It includes weapon data link equipment mounted on a guided weapon, which is a high-speed mobility system, and wirelessly communicates with a ground control station, The above-mentioned armed data link equipment is, A GPS receiver that generates location information of the above-mentioned guided weapon in real time; A communication processor that transmits generated location information to a ground control station at predetermined time intervals: An RF reception path selection unit that selects a reception path according to a request from the ground control station; and An AGC (Automatic Gain Control) device that optimizes reception quality by automatically adjusting the gain of the received signal according to the selected reception path; A position information-based automatic gain control system for armed data links including
In Article 7, The above RF reception path selection unit is a position information-based automatic gain control system for an armed data link that selects at least one of multiple antennas, multiple frequency bands, or multiple reception circuits as a reception path.
In Article 7, The above RF reception path selection unit is a position information-based automatic gain control system for an armed data link that selects a reception path by considering at least one of the strength of the received signal, interference, speed of position change, or communication distance.
In Article 7, The above AGC device is a position information-based automatic gain control system for armed data links that adjusts the gain of an amplifier in real time according to the environment of a selected receiving path and performs upper or lower limit correction for receiving strengths above or below a certain threshold.
In Article 7, The position information of the above-mentioned guided weapon is a position information-based automatic gain control system for a weapon data link, which is periodically updated at intervals of n (n is a natural number) seconds through a communication processor.
In Article 11, A position information-based automatic gain control system for a weapon data link, wherein the RF reception path selection unit dynamically selects a reception path at every update cycle of the position information of the guided weapon, and the AGC device automatically adjusts a gain value at every update cycle of the position information of the guided weapon to optimize the quality of the received signal.

Description

Method and System for Location-Based Automatic Gain Control in Weapon Data Link The present invention relates to a technology for improving the reception performance of weapon data link equipment, and more specifically, to a method and system for position information-based automatic gain control for weapon data links that can optimize reception performance by performing automatic gain control (AGC) based on position information, taking into account the operating conditions of weapon data link equipment operated in a harsh electromagnetic environment where various RF equipment, such as high-power radar, is operated together. In wireless communication systems, technology capable of effectively handling received signal fluctuations is required because the amplitude of the received signal varies significantly depending on time or environment. In particular, RF (Radio Frequency) technology and Automatic Gain Control (hereinafter referred to as 'AGC') technology are utilized to reliably cover a wide dynamic range. AGC is a technology that detects the input signal amplitude of a wireless receiver or amplifier and automatically adjusts the amplifier's gain to maintain a constant output signal magnitude. This AGC technology is effectively applied to general communication systems, such as fixed or low-speed mobile terminals, contributing to ensuring the stability of communication quality. However, the application of existing AGC technology may be limited to weapon data link systems, particularly equipment operating in high-speed maneuvering systems or harsh electromagnetic environments. For example, weapon data link equipment mounted on missile platforms faces rapid high-speed maneuvering and environmental changes immediately after launch, resulting in extremely rapid and unpredictable changes in the input signal strength of the RF receiver. In such situations, conventional AGC methods may cause delays or instability in appropriate gain control, leading to a degradation of reception performance. In particular, for weapon data link equipment mounted on maritime platforms (ships), such as in the operation of ship-to-ship guided weapons, the electromagnetic interference environment becomes extremely harsh because various RF equipment, including high-power radar and ECM (Electronic Countermeasure), operates in the same environment. Consequently, it becomes difficult for the weapon data link equipment to perform normal reception operations, which can lead to a decrease in the reliability of the communication link. Consequently, to ensure the reception performance of weapon data link equipment, a new reception gain control technology is required that overcomes the limitations of traditional AGC methods and reflects the specific characteristics of the operating environment, such as high-speed maneuvering, position changes, and electromagnetic interference. FIG. 1 is a configuration diagram showing a position information-based receiving automatic gain control system according to an embodiment of the present invention. FIG. 2 is a flowchart illustrating a position information-based automatic gain control method according to an embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms, and the embodiments of the present invention are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. In the drawings, like reference numerals refer to like elements. FIG. 1 is a schematic diagram showing a position information-based automatic gain control system according to an embodiment of the present invention. Referring to FIG. 1, a position information-based automatic gain control system according to an embodiment of the present invention includes a guided weapon (1) which is a high-speed maneuvering system, and a ground control station (2) that communicates wirelessly with a weapon data link equipment (10) mounted on the guided weapon (1). The guided weapon (1) may be, for example, a missile. The weapon data link equipment (10) is mounted on the guided weapon (1) and transmits and receives location information and control data in real time between the ground control station (2) and the weapon data link equipment (10) so as to maintain stable communication even during high-speed maneuvering, and automatically adjusts the reception sensitivity based on the location information. The armed data link equipment (10) may include a GPS receiver (11), a transmitting and receiving antenna (12), a communication processor (13), an RF receiver (14), an RF receiving path selection unit (15), and an AGC device (16). The GPS receiver (11) is a device that measures the position of the guided weapon (1) in real time and continu