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Efficient Task-Resource Matchmaking Technique for Multiple/Heterogeneous Unmanned Combat Systems 多/异构无人作战系统的高效任务资源匹配技术
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.188
In the future battlefield centered on the concept of mosaic warfare, the need for an unmanned combat system will increase to value human life. It is necessary for Multiple/Heterogeneous Unmanned Combat Systems to have suitable mission planning method in order to perform various mission. In this paper, we propose the MTSR model for mission planning of the unmanned combat system, and introduce a method of identifying a task by a combination of services using a request operator and a method of allocating resources to perform a task using the requested service. In order to verify the performance of the proposed task-resource matchmaking algorithm, simulation using occupation scenarios is performed and the results are analyzed.
在以马赛克战争概念为中心的未来战场上,为了重视人的生命,对无人作战系统的需求将会增加。多/异构无人作战系统要完成各种任务,必须有合适的任务规划方法。本文提出了用于无人作战系统任务规划的MTSR模型,并引入了一种使用请求算子通过服务组合识别任务的方法和一种使用请求服务分配资源以执行任务的方法。为了验证所提出的任务资源匹配算法的性能,采用职业场景进行了仿真,并对仿真结果进行了分析。
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引用次数: 0
A Basic Study on the Selection of Required Operational Capability for Attack Drones of Army TIGER Units Using AHP Technique 基于AHP技术的陆军虎式部队攻击无人机作战能力选择基础研究
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.197
Jin-Gyeong Lee, Seong-Min Kwon
The importance of each warfighting function for Army TIGER unit attack drones is measured using the AHP technique. As a result, the importance of attack drones is high in the order of maneuver, firepower, intelligence, command/control, protection, and operation sustainment, but the importance of maneuver, firepower, and intelligence are almost similar. In addition, it is analyzed that attack drones capable of carrying out day and night missions by being equipped with an EO/IR sensor and being commanded/controlled in conjunction with the C4I system to eliminate threats with small bombs or aircraft collisions is needed. Finally, based on the results of this study, a virtual battle scenario for attack drones is proposed.
使用AHP技术对陆军虎式攻击无人机的每个作战功能的重要性进行了测量。因此,攻击无人机在机动、火力、情报、指挥/控制、防护、作战维持的重要性依次较高,但机动、火力、情报的重要性几乎相似。此外,有分析认为,需要配备EO/IR传感器,并与C4I系统一起进行指挥/控制,以消除小型炸弹或飞机碰撞的威胁,从而能够执行昼夜任务的攻击无人机。最后,在研究结果的基础上,提出了攻击无人机的虚拟作战场景。
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引用次数: 0
A Study on Safety Standards for the Interior of an Artillery Firing Range Considering Probable Error 考虑可能误差的火炮射击场内部安全标准研究
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.139
Safety standards for long-range artillery ammunition test and training sites follow the US artillery shooting range safety zone standards. Although the South Korean geographical conditions of shooting ranges are different from those of the United States, there is no safety standard reflecting the South Korean topographical characteristics. Probable error associated with the shooting range, trajectory should be considered in establishing the safety standards. In this study, we present the safety standards for the ammunition testing site suitable for the Korean situation, with applying a concept of trajectory and probable error differed by ammunition type, which are currently confirmed by the South Korean Army's artillery shooting.
远程火炮弹药试验和训练场地的安全标准遵循美国火炮射击场安全区标准。虽然韩国射击场的地理条件与美国不同,但并没有反映韩国地形特点的安全标准。在制定安全标准时应考虑与射击靶场、弹道有关的可能误差。在本研究中,我们提出了适合韩国情况的弹药测试场地的安全标准,并应用了目前韩国陆军炮兵射击所证实的弹道和可能误差不同的弹药类型的概念。
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引用次数: 0
A Study on the Detection of Fault Factor in Gear-Integrated Bearing 齿轮集成轴承故障因素的检测研究
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.113
Yeon-Sik Kang, I. Yang, Eun-Ye Lee, H. Jin, D. Shim
High-precision lasers and anti-aircraft radars are the main equipment to protect the Korean Peninsula, and require preemptive maintenance before signs of failure. Of the key components in the drive sector, bearings do not have a fault alarm function. Therefore, the technology for diagnosing defects in bearings before the performance degradation of equipment occurs is becoming more important. In this paper, for the experimental analysis, we measured the acceleration of the four sets of the same lot using acceleration sensors. Through periodic measurements, the factors that changed until the bearing stopped rotating were analyzed. To determine the replacement time, the main factors and threshold values of the bearing signal were analyzed. The error of the theoretical and experimental analysis results of the defect frequency was within 2.8 %, and the validity of the theoretical analysis results could be confirmed. Based on the results, it is possible to remotely transmit trouble alerts to users through the system check function.
高精度激光器和防空雷达是保护韩半岛的主要装备,需要在出现故障迹象之前进行先发制人的维护。在驱动部分的关键部件中,轴承不具有故障报警功能。因此,在设备性能下降之前诊断轴承缺陷的技术变得越来越重要。在本文中,为了进行实验分析,我们使用加速度传感器测量了四组相同批次的加速度。通过周期性测量,分析了轴承停止转动前的变化因素。为了确定更换时间,分析了轴承信号的主要影响因素和阈值。缺陷频率的理论和实验分析结果误差在2.8%以内,验证了理论分析结果的有效性。根据结果,可以通过系统检查功能远程发送故障警报给用户。
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引用次数: 0
Cyberattack Tracing System Operational Architecture 网络攻击跟踪系统操作架构
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.179
J. Ahn
APT cyber attacks have been a problem for over a past decade, but still remain a challenge today as attackers use more sophisticated techniques and the number of objects to be protected increases. ‘Cyberattack Tracing System’ allows analysts to find undetected attack codes that penetrated and hid in enterprises, and to investigate their lateral movement propagation activities. The enterprise is characterized by multiple networks and mass hosts (PCs/servers). This paper presents a data processing procedure that collects event data, generates a temporally and spatially extended provenance graph and cyberattack tracing paths. In each data process procedure phases, system design considerations are suggested. With reflecting the data processing procedure and the characteristics of enterprise environment, an operational architecture for CyberAttack Tracing System is presented. The operational architecture will be lead to the detailed design of the system.
APT网络攻击在过去十年中一直是一个问题,但随着攻击者使用更复杂的技术和需要保护的对象数量的增加,今天仍然是一个挑战。“网络攻击追踪系统”允许分析人员发现渗透和隐藏在企业中的未被发现的攻击代码,并调查其横向移动传播活动。企业的特点是多个网络和大量主机(pc /服务器)。本文提出了一种收集事件数据,生成时间和空间扩展的溯源图和网络攻击跟踪路径的数据处理过程。在每个数据处理过程阶段,建议系统设计注意事项。在反映数据处理流程和企业环境特点的基础上,提出了网络攻击跟踪系统的运行体系结构。操作架构将引导系统的详细设计。
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引用次数: 0
Numerical Analysis on Dynamic Behavior Characteristics of an Amphibious Assault Vehicle during Water Entry 两栖突击车入水动力学特性数值分析
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.159
Y. Heo, Taehyung Kim
In the present study, the dynamic behavior characteristics of an amphibious assault vehicle during water entry were analyzed using STAR-CCM+, a commercial computational fluid dynamics(CFD) code. All computations were performed using an overset mesh system and a RANS based flow-solver coupled with dynamic fluid-body interaction(DFBI) solver for simulating three degrees of freedom motion. For numerical validation of the solver, a water entry simulation of inclined circular cylinder was conducted and it was compared between an existing experiment data and CFD results. The pitch angle variation and the trajectory of the circular cylinder during water entry shows good agreement with previous experimental and numerical studies. For the water entry simulations of the amphibious assault vehicle, the analysis of dynamic behaviors of the amphibious assault vehicle with different slope angles, submerged depths and initial velocities were conducted. It is confirmed that the steep slope angle increases the submerged volume of the amphibious assault vehicle, so the buoyancy acting on the vehicle is increased and the moved distance for the re-flotation is decreased. It is also revealed that the submerged volume is increased, bow-up phenomenon occur earlier.
采用商用计算流体动力学(CFD)软件STAR-CCM+,对某两栖突击车入水过程中的动力学行为特征进行了分析。所有计算均使用覆盖网格系统和基于RANS的流动求解器以及模拟三自由度运动的动态流体-体相互作用(DFBI)求解器进行。为了对求解器进行数值验证,进行了倾斜圆柱的入水模拟,并将已有实验数据与CFD结果进行了比较。实验结果与数值模拟结果吻合较好。针对两栖攻击车的入水仿真,分析了不同坡角、淹没深度和初速条件下两栖攻击车的动力学行为。验证了陡坡角增大了两栖突击车的沉水体积,从而增大了作用在两栖突击车上的浮力,减小了再浮的移动距离。淹没体积增大,弓形上升现象发生时间提前。
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引用次数: 0
Acquiring Precise Coordinates of Ground Targets through GCP Geometric Correction of Captured Images in UAS 利用捕获图像的GCP几何校正获取地面目标精确坐标
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.129
Namwon An, Kyung-Mee Lim, So-Young Jeong
Acquiring precise coordinates of ground targets can be regarded as the key mission of the tactical-level military UAS(Unmanned Aerial System) operations. The coordinates deviations for the ground targets estimated from UAV (Unmanned Aerial Vehicle) images may depend on the sensor specifications and slant ranges between UAV and ground targets. It has an order of several tens to hundreds of meters for typical tactical UAV mission scenarios. In this paper, we propose a scheme that precisely acquires target coordinates from UAS by mapping image pixels to geographical coordinates based on GCP(Ground Control Points). This scheme was implemented and tested from ground control station for UAS. We took images of targets of which exact location is known and acquired the target coordinates using our proposed scheme. The experimental results showed that errors of the acquired coordinates remained within an order of several meters and the coordinates accuracy was significantly improved.
获取地面目标的精确坐标是战术级军事无人机作战的关键任务。从UAV(无人驾驶飞行器)图像估计的地面目标的坐标偏差可能取决于传感器规格和UAV和地面目标之间的倾斜距离。对于典型的战术无人机任务场景,它有几十到几百米的订单。本文提出了一种基于地面控制点(Ground Control Points, GCP),通过将图像像素映射到地理坐标,精确获取无人机目标坐标的方案。该方案在无人机地面控制站进行了实施和测试。我们利用所提出的方案对已知精确位置的目标进行图像采集,并获取目标坐标。实验结果表明,所获得的坐标误差保持在几米数量级,坐标精度得到了显著提高。
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引用次数: 0
Main-Lobe Recognition for Sum-Delta Monopulse of Single-Ring Circular Array Antenna 单环圆形阵列天线和- δ单脉冲的主瓣识别
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.122
Hyeongyu Park, D. Woo, Jaesik Kim
The target must be located within the main-lobe of the antenna in order to measure the direction of the target by using sum-delta monopulse technique. The most common way if the target is located within the main-lobe is to compare the amplitude of the sum channel received signal with the delta channel received signal. However, in the case of the single-ring circular array antenna, it is difficult to apply the conventional method due to its structural limitation where antenna elements do not exist in the center of the array. In this paper, we proposed a novel method to identify whether a target is located within the main-lobe by appropriately adjusting the feeding amplitude of each element constituting the single-ring circular array antenna through the particle swarm optimization method. Simulation results showed that the proposed method can determine whether the target is located within the main-lobe of the single-ring circular array antenna.
用和δ单脉冲技术测量目标的方向时,目标必须位于天线的主瓣内。如果目标位于主瓣内,最常用的方法是比较和通道接收信号与增量通道接收信号的幅度。然而,对于单环圆形阵列天线,由于其结构限制,阵列中心不存在天线单元,因此难以应用常规方法。本文提出了一种利用粒子群优化方法,通过适当调整构成单环圆形阵列天线的各单元馈电幅度来识别目标是否位于主瓣内的新方法。仿真结果表明,该方法能够准确判断目标是否位于单环圆阵天线的主瓣内。
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引用次数: 0
Developement of Multifunction PCM Recorder for Telemetry System 遥测系统多功能PCM记录仪的研制
Pub Date : 2023-04-05 DOI: 10.9766/kimst.2023.26.2.171
Daeyeon Kim, Jaemin Kim, Kwang-Ryul Koh, Sang-Bum Lee
PCM data is result of air-vehicle flight test, this data is distributed for each engineers to analyze its condition. Since line-of-sight between the air-vehicle and the ground receiver cannot always be secured, remote PCM data recording system was claimed to be required. In this paper multi-function PCM data recorder has been described. This PCM data recorder was intended to place on inside of flight object. It can record about two hours in 32 GB SD card with maximum 7 Mbps data rate. RS-422/485 and RJ-45 interface enhanced accessibility for users. 5 V and 1 A power consumption and 19.5 mm × 152.5 mm × 102.3 mm allow to connect with mobile PCM devices. It acquired more than 190-minutes data in 12-times flight test. Also, it achieved military standard environmental test MIL-STD-810G to prove its stability and solidness.
PCM数据是飞行器飞行试验的结果,这些数据分发给各个工程师分析飞行器的状态。由于飞行器和地面接收器之间的视线不能总是得到保证,因此据称需要远程PCM数据记录系统。本文介绍了一种多功能PCM数据记录仪。这个PCM数据记录仪打算放在飞行物体的内部。它可以在32gb的SD卡上记录大约两个小时,最大数据速率为7mbps。RS-422/485和RJ-45接口增强了用户的可访问性。5v, 1a功耗,19.5 mm × 152.5 mm × 102.3 mm,可接移动PCM设备。在12次飞行试验中获得了190多分钟的数据。并通过了军用标准MIL-STD-810G环境试验,证明了其稳定性和坚固性。
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引用次数: 0
A Reconfigurable Integration Test and Simulation Bed for Engagement Control Using Virtualization 基于虚拟化的交战控制可重构集成测试与仿真平台
Pub Date : 2023-02-05 DOI: 10.9766/kimst.2023.26.1.091
Kilseok Cho, Ohkyun Jeong, Moonhyung Yoon
Modeling and Simulation(M&S) technology has been widely used to solve constraints such as time, space, safety, and cost when we implement the same development and test environments as real warfare environments to develop, test, and evaluate weapon systems for the last several decades. The integration and test environments employed for development and test & evaluation are required to provide Live Virtual Construction(LVC) simulation environments for carrying out requirement analysis, design, integration, test and verification. Additionally, they are needed to provide computing environments which are possible to reconfigure computing resources and software components easily according to test configuration changes, and to run legacy software components independently on specific hardware and software environments. In this paper, an Integration Test and Simulation for Engagement Control(ITSEC) bed using a bare-metal virtualization mechanism is proposed to meet the above test and simulation requirements, and it is applied and implemented for an air missile defense system. The engagement simulation experiment results conducted on air and missile defense environments demonstrate that the proposed bed is a sufficiently cost-effective and feasible solution to reconfigure and expand application software and computing resources in accordance with various integration and test environments.
在过去的几十年里,建模和仿真(M&S)技术已经被广泛用于解决时间、空间、安全和成本等限制,当我们实现与真实战争环境相同的开发和测试环境来开发、测试和评估武器系统时。用于开发和测试评估的集成和测试环境需要提供实时虚拟构建(LVC)仿真环境,以进行需求分析、设计、集成、测试和验证。此外,它们还需要提供能够根据测试配置更改轻松地重新配置计算资源和软件组件的计算环境,并在特定的硬件和软件环境上独立运行遗留软件组件。本文提出了一种基于裸金属虚拟化机制的交战控制集成测试与仿真(ITSEC)平台,以满足上述测试与仿真需求,并在某防空导弹防御系统中进行了应用与实现。在防空和导弹防御环境下进行的交战仿真实验结果表明,该平台是一种经济可行的解决方案,可以根据各种集成和测试环境对应用软件和计算资源进行重新配置和扩展。
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引用次数: 0
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Journal of the Korea Institute of Military Science and Technology
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