• Journal of Satellite, Information and Communications
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• v.11 no.3
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• pp.65-71
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• 2016

Currently developing the OBC of the next-generation LEO satellite by Korea Aerospace Research Institute adopts the LEON2-FT/AT697F processor to achieve high performance. And various communication devices such as SpaceWire, MIL-STD-1553B, DMAUART and CAN Master are integrated to the separated standard communication FPGAs within the OBC, where they can be controlled by the processor and flight software (FSW) through PCI interface. The Actel 1553BRM IP core is used for the 1553B in the next-generation LEO OBC and the B1553BRM wrapper from Aeroflex Gaisler is used for connecting it to the AMBA bus in FPGA. This paper presents the design and development of PCI-based 1553B communication software, and describes the handling mechanism of 1553B operation in FSW task level. Also it shows the test results on real-hardware and simulator.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.1065-1066
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• 2008

We discuss about Design and Debugging for 1553B Communication. 1553B Communication is used in Aircraft and Satellite System. When we design a Satellite Control Computer, we apply a 1553B Communication among Satellite Control Computer and others. Satellite Control Computer has a PM32 Module, it is CPU and control module especially. In this paper, we show you a 1553B Communication Design and Debugging in the Satellite System.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.57 no.7
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• pp.1285-1289
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• 2008

In this paper, we design COMS system bus that the 1553 Data Bus is able to link all the units of the satellite managed by the SCU using one Prime Data Bus and on Redundant Data Bus. Also we analyze MIL-STD-1553B bus load and relevant exchange memory budgets in system bus of the COMS satellite. This data is used in the satellite mission and software design by system engineer.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.6
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• pp.1045-1054
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• 2006

In this paper, described a design result of bus interface modulo for multiple level MU-SID-1553 data bus network. In general, MIL-SID-1553 network is used for single level data bus topology. But, according to applied system's structure. multiple level bus architecture is required., And for his, micro processor must be involved for system be, and a additional hardware and software functions are needed. The designed data bus interface module is simply consists of communication transceivers and simple electronic circuit without micro processor. Through the hardware testing and software simulation, the functional performance of the designed interface module was successfully validated.

• Journal of Korea Multimedia Society
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• v.24 no.2
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• pp.199-207
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• 2021

It is very important to support real-time on the inspection equipment based on Windows. In particular, in the system using MIL-STD-1553B communication, which is widely used in military weapon systems, real-time is required for inspection equipment that uses mostly platforms based on Windows such as Industrial PCs. However, in order to use a complete real-time operating system such as VxWorks, the purchase cost is expensive and the implementation is complicated on the system, so it is not suitable for inspection equipment that requires simple functions to just check go or no-go. Therefore, in this paper, a Real-Time implanted Kernel(RTiK) in the Windows kernel is implanted in order to improve these defects, and real-time performance is implemented for periodically MIL-STD-1553B communication by Deferred Procedure Call(DPC) of Windows. Also, it was verified that the period of up to 2ms was guaranteed with a RDTSC into the EDX:EAX registers for measuring the periodicity.

• Journal of the Korea Institute of Military Science and Technology
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• v.21 no.3
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• pp.370-378
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• 2018

The mission data in missile systems should be quickly and reliably transmitted from a mission transmission device to a guidance control unit. The MIL-STD-1553B is one of the reliable communication standards, but its bit rate is generally limited to 1Mbps due to the intrinsic properties of its electrical design. Therefore, the bus controller needs to be optimized to efficiently transmit the mission data on the inevitably limited bit rate. This paper proposes an analytical approach based on sampling-based optimization methods to maximize the data throughput without data loss. The proposed approach was evaluated in the simulations with the data transmission model for the MIL-STD-1553B communication system. The results of the proposed methods were applied to a real-time system and showed that the proposed method was successfully performed.

• Journal of the Korea Institute of Military Science and Technology
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• v.16 no.4
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• pp.422-429
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• 2013

MIL-STD-1553B communication is globally used in the area of aerospace and defense which require safety and reliability in spite of its low communication speed. As recently increased requirements for high precision and robust guidance ability of missiles, missile sensor equipment needs more data to satisfy those requirements. Therefore, missile systems to adopt MIL-STD-1553B requires higher data transfer and processing capability than those of the current systems. In this paper, we describe the result of analysis and implementation of the existing methods that applied multi-message chain and double buffers to improve the current missile system.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2011.10a
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• pp.80-80
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• 2011

본 논문은 윈도우에 디바이스 드라이버 형태로 동작하는 실시간 이식 커널을 제안한다. x86하드웨어에서 제공하는 Local APIC(Advanced Programmable Interrupt Controller)를 이용하여 윈도우와는 별도의 타이머를 제공하여, 독립적인 타이머 인터럽트를 통해 실시간성이 필요한 서비스가 정확한 주기로 동작하여 마감시한을 보장한다. 그리고 1553b 통신에서 IP470을 통해 오실로 스코프로 테스트하여 제안한 실시간 이식 커널이 실시간성을 보장함을 보인다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.7-9
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• 2013

유도무기는 점검장비와 MIL-STD-1553B 통신 시 많은 양의 데이터를 처리하고, 전달 받은 데이터에 대해 정확성과 빠른 응답성을 요구하기 때문에 점검장비에서 데이터를 실시간으로 처리하고 판단하는 것이 매우 중요하다. 따라서 본 논문에서는 이러한 문제를 해결하기 위해 기존에 개발된 실시간 이식 커널을 이용하여 미들웨어에서 MIL-STD-1553B 통신에 요구되는 주기적인 통신의 마감시간을 보장하도록 설계 및 구현하였다.

• Bulletin of the Korean Space Science Society
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• 2007.10a
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• pp.85.2-85.2
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• 2007