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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Journal of Advanced Navigation Technology
Journal Basic Information
Journal DOI :
The Korea Navigation Institute
Editor in Chief :
Volume & Issues
Volume 16, Issue 6 - Dec 2012
Volume 16, Issue 5 - Oct 2012
Volume 16, Issue 4 - Aug 2012
Volume 16, Issue 3 - Jun 2012
Volume 16, Issue 2 - Apr 2012
Volume 16, Issue 1 - Feb 2012
Selecting the target year
The 3D Numerical Analysis on the Turbulent at 40° Crosswind, for the Predictions of Flight Stability at Take-off and Landing
Sheen, Dong-Jin ; Kim, Do-Hyun ; Park, Soo-Bok ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 179~189
DOI : 10.12673/jkoni.2012.16.2.179
The aim of this paper is to research the change in the turbulent flow and the AOA(Angle Of Attack) occurred by
crosswind to the direction of runway through the three-dimensional numerical analysis and to predict the take-off and landing flight stability. As a result, the maximum amplitude of AOA variation on runway reached
within 3 second because of the wake formed by the constructions in the vicinity of the airport, and the overall effects appeared as an irregular aperiodic forms. Additionally, it was observed that the layout and shape of the buildings effected on the strength of turbulence directly, and the rapid flow generated between the buildings changed into stronger wake and eventually expected that the flow raises serious take-off and landing flight instability.
Performance of Concatenated Reed-Solomon and Convolutional Codes for Digital Modems in HF Data Communications
Kim, Jeong-Chang ; Yang, Gyu-Sik ; Jeong, Gi-Ryong ; Park, Dong-Kook ; Jung, Sung-Hun ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 190~196
DOI : 10.12673/jkoni.2012.16.2.190
In this paper, we propose an improved error correction code in order to improve the performance of digital modems for HF data communications and verify the performance of the proposed scheme. The proposed scheme employs outer Reed-Solomon codes concatenated with inner convolutional codes. Numerical results show that the proposed system significantly improves the bit error rate performance compared to the conventional PACTOR-III modems. Hence, the proposed system can improve the bandwidth efficiency of digital modems for HF data communications.
Measurement of Multi Conflict Avoidance for Free flight Efficiency
Lee, Dae-Yong ; Kang, Ja-Young ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 197~203
DOI : 10.12673/jkoni.2012.16.2.197
In this paper, study the substantial issues which occurs upon free flight environment by performing separation assurance under multiple conflict(over 3 Aircraft), recovery en route under the terms of time constrains and fixed way point after the conflict avoidance, correlations between conflict detection distance and separation assurance by utilizing Autonomous flight algorithm. Result of this experiment demonstrates that the extension of detection distance is advantageous to solution of separation assurance and enhancing of flight efficiency, choose to maneuver by applying time constrain terms and fixed way point according to the situation of conflict prediction in case of recovery maneuver after the conflict avoidance. And separation assurance can be solved by applying 2 degrees or more of bank angle. When choosing the optimal bank angle could be drastically improved flight efficiency.
A Study on Optimum Performance in MIMO RADAR with Transmit and Receive Antenna Allocation
NamGoong, Geol ; Lim, Jong-Tae ; Yoo, Do-Sik ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 204~210
DOI : 10.12673/jkoni.2012.16.2.204
In this paper, we study the method of estimating direction of departure(DOD) and direction of arrival(DOA) using estimation of signal parameters via rotational invariant techniques (ESPRIT) in uniform linear array MIMO radar system. While it is possible to improve the resolution by increasing the numbers of physical antennas and snapshots after matched filtering, such methods generally give rise to increase in complexity. In this paper, we propose to improve the resolution by optimally allocating the number of transmit and receive antennas. In particular, we show that the performance is optimized when the number of the receive antennas is approximately twice that of transmit antennas.
Security Analysis of AES-CMAC Applicable to Various Environments
Jeong, Ki-Tae ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 211~218
DOI : 10.12673/jkoni.2012.16.2.211
In this paper, we propose a fault injection attack on AES-CMAC, which is defined by IETF. The fault assumption used in this attack is based on that introduced at FDTC`05. This attack can recover the 128-bit secret key of AES-CMAC by using only small number of fault injections. This result is the first known key recovery attack result on AES-CMAC.
Study on the Spectrum Sharing based on Analysis of Channel Interference between LTE/LTE-Advanced Systems
Kang, Young-Heung ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 219~226
DOI : 10.12673/jkoni.2012.16.2.219
Since OFDM(Orthogonal Frequency Division Multiplexing) technology is applied into LTE(Long Term Evolution)/LTE-Advanced system, it is important to estimate the spectrum sharing and to analyze interference in LTE system based on the characteristics of frequency assignment. Therefore, in this paper, a study on the adjacent channel interference between two operators/systems to provide LTE services. For co-existence of LTE systems, the relative capacity loss and the relative throughput loss in uplink and downlink have been simulated to evaluated ACIR(Adjacent Channel Interference Ratio) values with 5% loss rate. Some parameters such as the location of user, aggressor bandwidth, and the separation offset affect the required ACIR value for spectrum sharing, and these results and interference analysis schemes in this article can provide reliable reference for LTE RF standardization and efficient frequency utilization in future.
GPS and Wireless LAN Bandpass Filter based on LTCC
Kim, Young ; Yun, Jeong-Ho ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 227~233
DOI : 10.12673/jkoni.2012.16.2.227
This paper presents a bandpass fitler of GPS and WLAN band based on LTCC. The structure of bandpass fitler consists of a Butterworth lowpass fitler and highpass filter using CRLH (Composite Right/Left-Handed) transmission line. Using green sheet with dielectric constant 7.2, we fabricated the bandpass filter that satisfied GPS and WLAN band characteristics. We are implemented the bandpass filter at center frequency 1.5 GHz (GPS) and 2.4 GHz (WLAN). Its insertion loss are 1.66 dB at GPS and 3.20 dB at WLAN respectively.
A Study on the PAPR Reduction and In-Band Distortion Compensation Schemes for Next Generation Mobile Communication Systems
Roh, Jae-Sung ; Kim, Wan-Tae ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 234~239
DOI : 10.12673/jkoni.2012.16.2.234
Next generation mobile communication systems have been studied and applied to support various services. In next generation mobile communication systems, the most interested research is the integration of various communication systems and the offer of various services by using high-speed data transmission. The integration of communication systems has been researched by using multi standard modem, while the high-speed data transmission for the offer of various services has been applied by using OFDM. This paper has proposed the method to reduce PAPR by using multi standard modem. with EVM, this paper has also suggested the method to compensate in-band distortion while reducing PAPR. By using the proposed methods, this paper has analyzed and simulated the decrease efficiency of PAPR, the performance of CCDF, and the performance of BER in next generation mobile communication systems. The simulation results improved the performance of next generation mobile communication system can be seen that.
Implementation of 2-D Incoherent Imaging using Hilbert Transform based on Two-Pupil Optical Heterodyne Scanning System
Kyung, Min-Gu ; Doh, Kyu-Bong ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 240~246
DOI : 10.12673/jkoni.2012.16.2.240
The Hilbert transform, which has been hitherto discussed in coherent imaging, is for the first time investigated in the context of incoherent imaging. Because the Hilbert transform of the information is superposed coherently with the original light field. We present a two-pupil optical heterodyne scanning system and analyze mathematically the design of its two pupils such that the optical system can perform the Hilbert transform on incoherent objects. In this paper, we review and formulate the definition of an analytic signal of a function and from which we can obtain the Hilbert transform of the function. and we analyze the design of pupils so as to obtain the Hilbert transform and show some 2-D simulations. Computer simulation results of the idea clarify the theoretical results.
Concatenated Diversity System for Bandwidth Efficient Communication of Flight Type Air Node in Unstable Channel Environments
Kang, Chul-Gyu ; Park, Jin-Hee ; Oh, Chang-Heon ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 247~254
DOI : 10.12673/jkoni.2012.16.2.247
In this paper, we propose a concatenated diversity system to assure the data transmission reliability between flight type air nodes which move according to their atypical orbit, then its performance is analyzed using computer simulation and it is designed with hdl. The proposed system cannot only improve a bandwidth efficient and coding gain from diversity TCM code but also the reliability of data transmission is high. From the computer simulation result about bit error rate(BER) of the proposed system, we confirm that its BER performance is about 11dB greater than TCM code at
and about 11dB greater than space time block code at
which has a full diversity gain. In addition, when we compare its BER performance with space time trellis code which has both a diversity gain and a coding gain, the performance of the proposed system is greater than about 1.5dB at
. Lastly, after designing the proposed system with HDL, we can confirm that the operation result is correct.
Performance Analysis of Timing Synchronization Scheme for AeroMACS System
Lee, Eun-Sang ; Sohn, Kyun-Gyeol ; Park, Youn-Ok ; Jung, Yun-Ho ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 255~263
DOI : 10.12673/jkoni.2012.16.2.255
In this paper, the performance evaluation results of the timing synchronization schemes are presented for aeronautical mobile airport communication systems (AeroMACS). AeroMACS, which is based on IEEE 802.16e mobile WiMAX standard, uses the aeronautical frequency band of 5GHz with the bandwidth of 5MHz. The simulation model of AeroMACS is constructed and the evaluation for the timing synchronization performance is performed with the various channel models such as apron (APR), runway (RWY), taxiway (TWY), and park (PRK).
The Study on Marker-less Tracking for the Car Mechanics e-Training AR(Augmented Reality) System
Yoon, Ji-Yean ; Kim, Yu-Doo ; Moon, Il-Young ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 264~270
DOI : 10.12673/jkoni.2012.16.2.264
e-Training focusing on the experience and practice accelerates actual-active learning and enforces the learning effects against the existing theory based education. The most typical hans-on training system is augmented reality. Especially, in the training field installed augmented reality system, the automobile maintenance trainee experiences effective training with the immediate information, which is indicating the location of parts and the procedure of repairing. The tracking is the core technology of the augmented reality system. The performance of augmented reality system depends on the tracking technology. Therefore, this paper suggests the tracking technology which is proper to the e-Training augmented reality service technology for the car mechanics.
Dynamic Tree Formation Protocol in UAV Formation Flying Network for Disaster Monitoring
Park, Jin-Hee ; Kim, Yeon-Joo ; Chung, Jin-Wook ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 271~277
DOI : 10.12673/jkoni.2012.16.2.271
In this paper, we propose a dynamic tree formation protocol for multiple UAV which is gathering data or accomplishing a mission such as disaster monitoring, environment monitoring, and disaster relief. Especilly, we designed Hop-LQI Weight algorithm to form optimal tree in wireless dynamic environment applying situation of radio signal attenuation over distance and implemented our algorithm in MSP 430 K-mote sensor platform using TinyOS codes. We verified performance of our algorithm by comparing average link setup time by the number of nodes with minimum LQI, link cost calculation method in wireless communication.
Fabrication of Optical Network Monitoring Systems for Ship Using Combinations of Chained Branches Method and Dark Fiber Method
Lee, Seong-Real ; Kwak, Jae-Min ; Ryu, Kwang-Su ; Hwang, Eui-Chang ; Hwang, Nam-Suk ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 278~286
DOI : 10.12673/jkoni.2012.16.2.278
Hardware and software of optical network monitoring system for optical network installed in ship for providing massive information are designed and fabricated. And, we investigated whether the fabricated system will accurately monitoring three events of optical cable extension, macrobanding and ferrule dust, which are related with special situation of ship, or not through the experiment. We used the combined method of chained branch and dark fiber for designing and fabricating hardware of optical network monitoring system for optimal corresponding with network configuration in ship. And, we confirmed that the proposed system excellently trace within 5 m range of event point in all three cases by investigating each event experiments.
Design and Implementation on CAP-based Emergency Alert Broadcasting System for ATSC Mobile DTV
Cho, Min-Ju ; Choi, In-Hwa ; Hwang, Jun ; Park, Jong-Ho ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 287~296
DOI : 10.12673/jkoni.2012.16.2.287
For mobile emergency broadcast service, first of all, we shall understand transmission characteristics of each mobile broadcast system which might be appled for it and then analyse of the related disaster (emergency) standards based on emergency characteristic own. In this paper, we propose a CAP-based emergency alert broadcasting system for ATSC Mobile DTV system which has been accepted for the mobile broadcasting system in USA. Since there is no standard for emergency broadcasting using ATSC mobile DTV until now, we analyze common alert protocol in USA and then we proposed Emergency Alert Protocol for ATSC Mobile DTV based on it. And we have designed and implemented our proposed system to verify the effectiveness of it. As a result we show the possibility of emergency alert broadcasting for ATSC Mobile DTV.
Time Delay Traceback Scheme for Performance Enhancement of TDOA Location Estimation in NLOS Environment
Lee, Hyun-Jae ; Oh, Chang-Heon ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 297~306
DOI : 10.12673/jkoni.2012.16.2.297
In this paper, we propose a Time Delay Traceback Scheme for the TDOA location estimation performance enhancement in NLOS environment and analyze the performance in various conditions. We place multiple readers in a square(
) searching area for reuse of received signal. Also, we use more active NLOS reader detection methode for NLOS error mitigation. when NLOS time delay 70 m, the number of the NLOS reader is 3 and the received sub-blinks number 3, proposed time delay trace-back scheme improve the RMSE about 16 m. From these results, we confirm that the proposed time delay traceback scheme is well-suited for the high precision location estimation to offer the location based service.
A Modeling of Forensics for Mobile IP Spoofing Prevention
Park, Sun-Hee ; Yang, Dong-Il ; Jin, Kwang-Youn ; Choi, Hyung-Jin ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 307~317
DOI : 10.12673/jkoni.2012.16.2.307
Rapid development of the IT technology and mobile communications has increasingly improved many kinds of digital devices arise, as well as the mobile technology. However, the attacks (virus, hacking and Ip spoofing etc) have also increasingly grown dogged on any region including the society security. As the visual data is prone to copy, delete and move etc, it is necessary that attesting to the integrity of forensics evidence is crucial, as well as data transmission security. This paper presents a framework model using digital forensics method and the results of its performance evaluation for mobile security. The results show that the integrity of the visual data can be obtain with high security and make a proposal refer to prevention of Mobile IP Spoofing attack using our hashing data.
A Study of the Effects of the Self-Emotional Ability and Social-Emotional Ability on the Teamwork Capability of the Airline Flight Attendants
Chung, Min-Joo ; Chang, Dae-Sung ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 318~329
DOI : 10.12673/jkoni.2012.16.2.318
Flight attendants are the most important people which decides customer`s satisfaction and service quality toward the airline service. Nowadays the service employees` emotional ability over self and others are considered to be a important service competence. And flight attendants` job performance are achieved in their team system. The purpose of this study is to examine how the service employees` emotional awareness and management abilities can affect their teamwork capability. This study was conducted through literature and empirical methods, and collected questionnaire was analyzed employing SPSS version 15.0 statistics package and AMOS 17.0. The result of this study was found that flight attendants who have high self-emotional ability and social-emotional ability show higher teamwork capability in their flights. It is meaningful because it expanded the range of the researches about the emotional ability and proposed new substructure of researches on the service human resources.
Design of StraaS(streaming as a service) based on Cloud Computing
Cha, Byung-Rae ; Sim, Su-Jeong ; Kim, Yong-Il ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 330~339
DOI : 10.12673/jkoni.2012.16.2.330
In this paper, we define and design the Streaming as a Service (StraaS) to support streaming service based on cloud computing. And we describe the various function and security to StraaS service. Specially, we introduce KS-MMA(Key-generation System for Multilateral Matching Authentication) and SIES(Searchable Image Encryption System) as security function for streaming service and cloud computing.
A Study on the Effect Between Cabin Service Quality, Customer Value and Relationship Retention Intention in Airline -Focus on the upper-class seats customers-
Yoon, Sun-Young ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 340~350
DOI : 10.12673/jkoni.2012.16.2.340
The purpose this study is to find out how cabin service quality influences customer value and relationship retention intention focus on upper-class seats customer in airline. In the result of the hypothesis verification, this study hypotheses concerning the effect relations between cabin service quality, customer value and relationship retention intention. Therefore this study needs to be studied the quality of cabin service of upper-class and service value. Based on the research findings airline cabin service department have to examine various customer needs with the development of items and services.
The implementation of the Remote Control and Measurement Systems using CDMA Modem
Lee, Myung-Eui ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 351~359
DOI : 10.12673/jkoni.2012.16.2.351
This paper deals with the design and development of the remote control and measurement systems using CDMA(Code Division Multiple Access) data modem. We propose a bi-directional data communication link without the public IP address in CDMA modem device by the TCP/IP packet and SMS(Short Message Service) communication. The remote control and measurement systems are implemented by a Telit WM-800 modem as DCE(Data Communication Equipment), and Atmel AT89C51 microcontroller as DTE(Data Terminal Equipment). The user application software for the control and measurement system user, and the firmware software of device drivers for peripherals such as a digital input/output device, AD/DAC(Analog to Digital/Digital to Analog Converter), LCD, and temperature/humidity sensor are written in Microsoft C and Keil C language respectively for further various applications. The experimental result of the proposed control and measurement systems implemented in this paper is evaluated via real-time experiments, which works well as designed.
Development of Silm Type ELCB For Airport Distribution Panel through Increased short Circuit Capacity
Joo, Nam-Kyu ; Lee, Jong-Myong ; Kim, Nam-Ho ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 360~366
DOI : 10.12673/jkoni.2012.16.2.360
In the power distribution panel installed in airport or industrial facilities, MCCB has been used for main switch and ELCB for branch switch to perform human body and leakage-inducing fire protection as well as overcurrent and short circuit protection. Especially for the airport panel, increase in accident protection is needed for stable power supply due to rapid modernization with fast-growing users, higer capacity and diversification of equipment, the increase of power capacity and the breaker made slim is a main issue for now because the issue for installation space is standing out by making panel with two-row arrangement connection method, etc. due to a many use of branch ELCBs. In this thesis, we designed arc extinguishing mechanism, considered movement direction change of contact in mechanism design. Also, we designed the breaker to work stably in case of miniaturization of leakage detection circuit and reverse connection. We conducted short circuit test to verify its function and developed the breaker that can be improved protection against accidental current with slim size operating leakage function when reverse connection to help solve the problem in using space that is increasing in the airport distribution panel.
Dynamic Mode Analysis of Thin Walled Closed Section Beams under Warping Conditions
Yu, Hwan-Shin ; Chun, Dong-Joon ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 367~374
DOI : 10.12673/jkoni.2012.16.2.367
A dynamic simulation and test of frame with thin walled closed section beams considering warping conditions have been performed. When a beam is subjected under torsional moment, the cross section will deform an warping as well as twist. For some thin-walled sections warping will be large, and accompanying warping restraint will induce axial and shear stresses and reduce the twist of beam which stiffens the beam in torsion. This paper presents that an warping restraint factor in finite element model effects the behavior of beam deformation and dynamic mode shape. The computer modelling of frame is discussed in linear beam element model and linear thin shell element model, also presents a correlation between computer predicted and actual experimental results for static deflection, natural frequencies and mode shapes of frame.
Fingerprint overlay technique of mobile OTP to extent seed of password
Kim, Nam-Ho ; Hwang, Bu-Hyun ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 375~385
DOI : 10.12673/jkoni.2012.16.2.375
The fingerprint is the identity authentication method which is representative uses biometrics. Compared with password methods there is a feature where the dangerousness of embezzling or lossing is few. With like these features using the fingerprint in OTP creations. In this paper, we introduce the developed prototype of OTP system using fingerprint. And the overcome method of OTP system`s demerit using fingerprint which extracts few minutiae points into a whole fingerprint image is proposed. A few minutiae points wasn`t generated many encryption key for OTP session. The proposed method is overlaid the same fingerprint simply and added many minutiae points as biased overlaid fingerprints. Hence the security of OTP using fingerprint and the randomness over password-guessing are strengthened.
Real-time Multi-Objects Recognition and Tracking Scheme
Kim, Dae-Hoon ; Rho, Seung-Min ; Hwang, Een-Jun ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 386~393
DOI : 10.12673/jkoni.2012.16.2.386
In this paper, we propose an efficient multi-object recognition and tracking scheme based on interest points of objects and their feature descriptors. To do that, we first define a set of object types of interest and collect their sample images. For sample images, we detect interest points and construct their feature descriptors using SURF. Next, we perform a statistical analysis of the local features to select representative points among them. Intuitively, the representative points of an object are the interest points that best characterize the object. in addition, we make the movement vectors of the interest points based on matching between their SURF descriptors and track the object using these vectors. Since our scheme treats all the objects independently, it can recognize and track multiple objects simultaneously. Through the experiments, we show that our proposed scheme can achieve reasonable performance.
Improving Matching Performance of SURF Using Color and Relative Position
Lee, KyungSeung ; Kim, Daehoon ; Rho, Seungmin ; Hwang, Eenjun ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 394~400
DOI : 10.12673/jkoni.2012.16.2.394
SURF is a robust local invariant feature descriptor and has been used in many applications such as object recognition. Even though this algorithm has similar matching accuracy compared to the SIFT, which is another popular feature extraction algorithm, it has advantage in matching time. However, these descriptors do not consider relative location information of extracted interesting points to guarantee rotation invariance. Also, since they use gray image of original color image, they do not use the color information of images, either. In this paper, we propose a method for improving matching performance of SURF descriptor using the color and relative location information of interest points. The location information is built from the angles between the line connecting the centers of interest points and the orientation line constructed for the center of each interest points. For the color information, color histogram is constructed for the region of each interest point. We show the performance of our scheme through experiments.
A Study on the MTF Graphics using Simpson Approximation
Che, Gyu-Shik ; Chang, Won-Seok ; Oh, Jake ;
The Journal of Advanced Navigation Technology, volume 16, issue 2, 2012, Pages 401~408
DOI : 10.12673/jkoni.2012.16.2.401
There is a clear need for characterizing optical components with the growing role played by optical devices in measurement, communication, and photonics. A basic and useful measuring parameter to meet this need, especially for imaging systems, is the Modulation Transfer Function, or MTF. Over the past few decades new instrument, including the laser interferometer, the CCD camera, and the computer have revolutionized the measurement and calculation of the MTF. This has made what was tedious and involved into virtually an instantaneous measurement. We proposed a Simpson approxiamtion method to create MTF graph and illustrated real example to verify its method in this paper. This method is very useful while it is very useful because its error is very minor and small although its approximation.