• Title/Summary/Keyword: Flight Data Processing System

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Implementation of CWP MRT Data Processing Module for Efficient Correlating Flight Plan (효율적인 비행계획 연관을 위한 CWP MRT 데이터 처리 모듈 구현)

  • Kim, Kanghee;Choi, Sangbang
    • Journal of Advanced Navigation Technology
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    • v.18 no.4
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    • pp.268-277
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    • 2014
  • It is very important to correlate flight plan for safe and prompt ATC(air traffic control) operation. In this paper, we design CWP(controller working position) MRT(multi radar tracking) processing module to achieve improvement of overall ATC automation system's performance by minimizing network traffic overload when correlating MRT with flight plan. This implemented module can guarantee efficiency and safety of ATC automation system by applying distributed correlated manner, and reduce network usage by using encoded flight plan correlated MRT data format. We found that this module has 8.54~12.11% lower network usage and 8.37~11.27% higher network traffic fairness than the module using standalone manner.

Reference Trajectory Generation of Flight Tests Using an Aircraft through Post-Processing of GPS Receiver Data (GPS 수신기 데이터의 후처리를 통한 항공기 비행시험 기준궤적 생성)

  • Moon, Ji-Hyeon;Kwon, Byung-Moon;Shin, Yong-Sul;Choi, Hyung-Don
    • Aerospace Engineering and Technology
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    • v.9 no.1
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    • pp.60-66
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    • 2010
  • This paper deals with a post-processing of GPS receiver data in order to acquire a reference flight trajectory of an aircraft test. The flight test using an aircraft that is carried out several times since 2007 is the integrated test to verify the performance of the tracking and communications facilities in Naro Space Center and Jeju Tracking Center. In order to analyze performance of the tracking and navigation equipments, true reference data should be used for performance comparisons. Therefore off-the-shelf commercial GPS receiver, DL-V3 made by NovAtel Inc., is operated on the test to collect the GPS navigation data and the collected data is post-processed by GrafNav which is the off-the-shelf post-processing program made by NovAtel Inc. Through the post-processing of the collected data, a reference trajectory is generated with small error range about several decade centimeter level.

A Study on developing Flight Software for Nano-satellite based on NASA CFS (NASA CFS에 기반한 초소형 위성용 비행소프트웨어 개발에 관한 연구)

  • Choi, Won-sub;Kim, Jin-Hyoung;Kim, Hae-dong
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.44 no.11
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    • pp.997-1005
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    • 2016
  • Flight software plays an important role in operating satellites, such as processing commands from ground station, controlling satellites and processing mission data. Reliability is the most important thing in flight software and many verifications and tests are needed for assuring it. this causes an increase of cost and period of development. So NASA has developed a reusable flight software platform to apply to their satellite projects. The CFS(Core Flight System) is the very result. We are developing our flight software for a nano-satellite based on NASA CFS. We have tested core services and functions provided in CFS and we have designed and implemented flight software based on these.

A Study On Missile Flight Simulation Method Using the Built-in Memory of Aviation Control Unit (비행제어장치 내장 메모리를 활용한 유도탄 모의비행기법 연구)

  • Kim, Tae-Hoon;Lee, Sang-Hoon;Gong, Min-Sik
    • Journal of the Korea Institute of Military Science and Technology
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    • v.22 no.4
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    • pp.536-544
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    • 2019
  • During the assembly and function inspection of missile system, flight simulation process is required. In the conventional flight simulation check of missiles, an inertial navigation system simulator was used to transmit the navigation output data acquired in HILS. There are several disadvantages in terms of check configuration complexity and data synchronization when using the simulator. So we proposed a new flight simulation method that utilizes the nonvolatile built-in memory of the aviation control unit. The data processing procedure and operation procedure of the proposed method for type I and type II missiles are presented. And we analyzed the causes of the difference between proposed method result and the HILS result for type II missile. By comparing the results obtained by the experiments using the proposed method with the results of HILS, the validity of proposed method was confirmed.

Development and Test of Line-Telemetry DPS for KSLV-I Upper Stage (나로호 상단부 Line-Telemetry 데이터처리시스템 개발 및 시험)

  • Kim, Kwang-Soo;Lee, Soo-Jin;Chung, Eui-Seung
    • Aerospace Engineering and Technology
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    • v.10 no.1
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    • pp.107-115
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    • 2011
  • The line-telemetry data processing system is necessary for monitoring the status of each onboard systems of KSLV-I upper stage during the ground tests and launch preparation. The mission of line-telemetry system is to provide reference telemetry data and to monitor the status of upper stage. The line-telemetry data processing system consists of a PCM acquisition/processing server, a system management server, and 9 monitoring consoles. In this paper, we will describe the overview of onboard remote measurement system, the design of the line-telemetry data processing system, anomaly setup information for indicating alarm signal in case of abnormal occurrence, and the result of the ground test and flight test.

A Study on Flight Data Protection System Data in Flight Control (항공관제에서 비행자료 보호 관리 시스템에 관한 연구)

  • Lee, Deok Gyu;Han, Jong-Wook
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.11a
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    • pp.1479-1481
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    • 2012
  • 본 논문은 내부 혹은 외부의 바이러스의 피해 및 비행자료 변조 및 수정 등의 해킹 발생에서 비행자료 시스템의 가용성, 신뢰성 및 무결성을 강화시켜 비행자료시스템 운영 시 관제 서비스를 마비시키는 다양한 사이버 테레에 대응하여 실시간으로 자동으로 재해를 복구하는 시스템 및 그 방법에 대한 것이다. 비행자료시스템 실시간 자동재해복구시스템은 임베디드 시스템을 제공하며, EWF(Enhanced Write Filter)를 이용하며 OS(Operating System)을 보호하여 시스템을 안전하게 운용할 수 있는 장점을 갖는다.

A Study on the Data Bus for the Integration of Avionics Systems (항공전자 시스템 통합을 위한 데이터 버스 연구)

  • Hong, Seung-Beom;Jie, Min-Seok;Kim, Young-In;Hong, Gyo-Young;Cheon, Gi-Jin
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.17 no.3
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    • pp.70-77
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    • 2009
  • We proposed the method of avionics integrated architecture using high-speed fiber optic bus. Typically, data bus of aircraft consists of electronic and optic data transmission method. Avionics systems are difficult to operate the electronic data transmission method for the high speed data processing, synchronization and interconnection between flight control system and flight management system efficiently. In this paper, it is known to look into the problem of data bus and the advanced trend in avionics systems, and propose the appropriate data bus of the advanced avionics systems.

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The Design and Test/valuation of GPS Translator Processing System (GPS 중계기 후처리 장비(TPS) 개발 및 시험평가)

  • 강설묵;이상정
    • Journal of the Korea Institute of Military Science and Technology
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    • v.6 no.1
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    • pp.49-58
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    • 2003
  • Compared with generic GPS receiver, post-processing software GPS receiver has many advantages for high dynamic vehicle tracking. It has the advantage of the application of various tracking algorithms and aiding schemes. The post-processing system observes the carrier phase measurement data from the recorded GPS signals, detects and isolates the cycle slip. The observed carrier phase data and the raw data of the reference station are processed by carrier phase DGPS scheme. And the integer ambiguity resolution algorithm is used for resolving single frequency carrier phase ambiguity. The results of static and real flight test are presented and show that the proposed GPS translator processing system satisfies submeter accuracy.

Multi-Description Image Compression Coding Algorithm Based on Depth Learning

  • Yong Zhang;Guoteng Hui;Lei Zhang
    • Journal of Information Processing Systems
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    • v.19 no.2
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    • pp.232-239
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    • 2023
  • Aiming at the poor compression quality of traditional image compression coding (ICC) algorithm, a multi-description ICC algorithm based on depth learning is put forward in this study. In this study, first an image compression algorithm was designed based on multi-description coding theory. Image compression samples were collected, and the measurement matrix was calculated. Then, it processed the multi-description ICC sample set by using the convolutional self-coding neural system in depth learning. Compressing the wavelet coefficients after coding and synthesizing the multi-description image band sparse matrix obtained the multi-description ICC sequence. Averaging the multi-description image coding data in accordance with the effective single point's position could finally realize the compression coding of multi-description images. According to experimental results, the designed algorithm consumes less time for image compression, and exhibits better image compression quality and better image reconstruction effect.

The Flight Data Measurement System of Flying Golf Ball Using the High Speed CCD Camera (고속 카메라를 CCD 이용한 비행골프공의 데이터 측정 시스템)

  • Kim, Ki-Hyun;Jo, Jae-Ik;Yun, Chang-Ok;Park, Hyun-Woo;Joo, Woo-Suk;Lee, Dong-Hoon;Yun, Tae-Soo
    • 한국HCI학회:학술대회논문집
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    • 2009.02a
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    • pp.168-172
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    • 2009
  • Recently, while 3D sports game increases, the research that it recognizes the operation of the real user actively progresses. Most of all, the research about the golf is active. In this paper, the image acquiring in a high-speed CCD camera measures the flight data of the golf ball through the image processing. While photographing, the high-speed camera, using this system, exposes an image at regular intervals. And line scan camera checks whether the golf ball passed or not. After the location information of the calculated golf ball calculates a speed and a direction by using the physical formula, it applies the golf simulation.

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