Hyung Keun Lee

Visiting Postdoctoral Fellow 12 months from late 2002
Supported by the Korea Science and Engineering Foundation & SNAP

Senior Lecturer
School of Electronics, Telecommunication & Computer
Hankuk Aviation University
200-1, Hwajon-dong, Deokyang-gu, Goyang-city,
Kyunggi-do, KOREA 412-791
Email: hyknlee@mail.hangkong.ac.kr

1986.3 ~ 1990.2: B.Sc., Dept. Control & Instrumentation Eng., Seoul National Univ., Korea

1990.3 ~ 1994.2: M.Sc., Dept. Control & Instrumentation Eng., Seoul National Univ. Korea

1998.3 ~ 2002.2: Ph.D., School of Electrical Eng., Seoul National Univ., Korea

1994.3 ~ 1998.2: Research Engineer, Hyundai Space & Aircraft Co., Korea
1998.4 ~ 2001.3: Assistant, Engineering Research Institute, Seoul National Univ., Korea
2002.3 ~ 2002.6: Lecturer, Konkuk University, Korea
2002.3 ~ 2002.9: Post-Doctoral Fellow, Seoul National University-Korea University Research Division for Information Technology, Brain Korea 21
2002.9 ~ 2003.9: Visiting Research Fellow, SNAP, The University of New South Wales, Australia (partly supported by KOSEF)

Past Projects:

- Development of a C++ based navigation simulator
- Design and implementation of a FCS(Fire Control System) software of KSR(Korean Scientific Rocket)-II
- Design and implementation of a WIN-CE based real-time GPS/SDINS hybrid navigation software
- Design and coding of a Baro/GPS/SDINS/Distributed Filter Simulator for Monte Carlo simulation/covariance analysis

Research Interests:

- Real-time multipath detection and positioning algorithm
- Distributed filter architecture and fusion methodology
- Stochastic stability analysis of various fusion methodology
- Real-time implementation of GPS/SDINS
- Effect of GPS Measurement Delay on SDINS
- Infrastructure (Real-Time Positioning) for Intelligent Transportation Systems
- GPS receiver DLL and PLL control
- Non-Line-Of-Sight error analysis for terrestrial, wireless positioning systems

Thesis (M.Sc.):
- Landmark Searching and Tracking Algorithm for Autonomous Mobile Robot Using Position Estimation (in Korean)

Thesis (Ph.D.):
- Time-Propagated Measurement Fusion and Its Application to GPS Multipath Detection and Isolation (in English)

International Journals:
- H.K. Lee, J.G. Lee, C.G. Park, and Y.K. Rho, "Modeling Quaternion Errors in SDINS: Computer Frame Approach", IEEE Tr. on AES, 34(1), 289-299, 1998.
- H.K. Lee, J.G. Lee, and G.I. Jee, "Calibration of Measurement Delay in GPS/SDINS Hybrid Navigation", AIAA journal of guidance, control, and dynamics, 25(2), 240-247, 2002.
- H.K. Lee and J.G. Lee, "Stability Analysis of Kalman Filter by Ortonormalized Compressed Measurement", International Journal of KIEE, 12D(2), 162-171, 2002.

Submitted Papers to International Journals:
- H.K. Lee and J.G. Lee, "Compression Filters via Time-Propagated Measurement Fusion", submitted to Automatica.
- H.K. Lee & C. Rizos, "Performance analysis of position-domain Hatch filter", submitted to the Royal Institute of Navigation Journal. (Download PDF)
- H.K. Lee, J.G. Lee, and G.I. Jee, "GPS Multipath Detection Based on Successive-Time Double-Differences ", IEEE Signal Processing Letter, accepted for publication, 2003.
- H.K. Lee, C. Rizos, and G.I. Jee, "Design of Kinematic DGPS Filters with Consistent Error Covariance Information ", submitted to IEE Proceedings - Radar, Sonar and Navigation.
- H. K. Lee, C. Rizos, and G. I. Jee, "Position Domain Filtering and Range Domain Filtering for Carrier-Smoothed-Code DGNSS: An Analytical Comparison ", submitted to IEE Proceedings - Radar, Sonar and Navigation.

Domestic Journals (Korean):
- H.K. Lee, Y.K. Rho, and C.G. Park, "Strapdown Attitude Algorithm Using Rodrigues Vector", Journal of the Korean Society for Aeronautical and Space Sciences, 24(3), 125-132, 1996.
- H.K. Lee, J.G. Lee, C.G. Park, and Y.K. Rho, "Equivalent Tilt Psi Error Model of Strapdown Inertial Navigation Systems", Journal of the Korean Society for Aeronautical and Space Sciences, 25(1), 133-145, 1997.
- H.K. Lee, Y.K. Rho, C.G. Park, and J.G. Lee, "Comparison Between Quaternion Error Model and Equivalent Tilt Error Model", Journal of the Korean Society for Aeronautical and Space Sciences, 25(2), 142-154, 1997.
- H.K. Lee, G.I. Jee, and J.G. Lee, "Compression Filters Based on Time-Propagated Measurement Fusion," Journal of KIEE, 51(7), 893-906, 2002.
- H.K. Lee, G.I. Jee, and J.G. Lee, "Channelwise Multipath Detection for a Plain GPS Receiver", ICASE Transactions on Control, Automation, and System Engineering, 8(9), 153-162, 2002.

International Conferences:
- H.K. Lee, J.G. Lee, G.I. Jee, and C.G. Park, "Measurement Maintenance and Compression for Real-time Kalman Filter", 3rd Asian Control Conference, Shanghai, P.R. China, July 4-7, 2000, 1440-1445.
- H.K. Lee, J.G. Lee, and G.I. Jee, "Effect of GPS Measurement Delay on SDINS", IEEE PLANS 2000, San Diego, CA, March 13-16, 2000, 464-471.
- H.K. Lee, J.G. Lee, and G.I. Jee, "Calibration of Time Synchronization Error in GPS/SDINS", 15th IFAC Symposium on Automatic Control in Aerospace, 2001, Bologna, Italy, 223-228.
- H.K. Lee, J.G. Lee, and G.I. Jee, "An Efficient GPS Receiver Algorithm for Channelwise Multipath Detection and Real-Time Positioning", U.S. Institute of Navigation 2002 National Technical Meeting, San Diego, CA, January 28-30, 2002, 265-276.
- H.K. Lee & C. Rizos, "A new recursive carrier-smoother-code filter for differential Global Navigation Satellite Systems", 11th Int. Assoc. of Institutes of Navigation World Congress, Berlin, Germany, 21-24 October, CD-ROM proc., paper 263, 2003. (Download PDF)
- H.K. Lee & C. Rizos, "A framework for calibrating NLOS error to support LBS in urban environments", 2003 Int. Symp. on GPS/GNSS, Tokyo, Japan, 15-18 November, 2003, 69-77. (Download PDF)
- H.K. Lee, C. Rizos, & I.G. Jee, "Design and analysis of DGPS filters with consistent error covariance information", 6th Int. Symp. on Satellite Navigation Technology Including Mobile Positioning & Location Services, Melbourne, Australia, 22-25 July, CD-ROM proc., paper 47, 2003. (Download PDF)
- B.H.K. Soon, E.K. Poh, J. Barnes, H.K. Lee, J. Zhang, H.K. Lee, & C. Rizos, "Preliminary results of the carrier-smoothed code-phase differential GPS/pseudolite system", 6th Int. Symp. on Satellite Navigation Technology Including Mobile Positioning & Location Services, Melbourne, Australia, 22-25 July, CD-ROM proc., paper 48, 2003. (Download PDF)
- B.H.K. Soon, E.K. Poh, J. Barnes, J. Zhang, H.K. Lee, H.K. Lee, & C. Rizos, "Flight test results of precision approach and landing augmented by airport pseudolites", 16th Int. Tech. Meeting of the Satellite Division of the U.S. Institute of Navigation, Portland, Oregan, 9-12 September, 2003, 2318-2325. (Download PDF)

Domestic Conferences (Korean):
- W. Kim, H.K. Lee, G.I. Jee, and J.G. Lee, "Development of Real-Time Hybrid Navigation Software for Land Vehicles", 6th GPS Workshop, Daejeon, Korea, Dec. 2-4, 1999, 607-612.
- J.G. Lee, C.G. Park, D.H. Chung, J.G. Park, H.K. Lee, and Y.K. Rho, "Development of a Navigation Simulator for Aircraft", Korean Automatic Control Conference, Dec., 1995, Seoul, Korea, Vol. II, 1085-1088.
- H.K. Lee, Y.K. Rho, C.G. Park, and J.G. Lee, "Comparison Between Quaternion Error Model and Equivalent Tilt Error Model", Korean Society for Aeronautical and Space Sciences Fall Annual Meeting, Seoul, Korea, 1996, 354-359.
- H.K. Lee, Y.K. Rho, C.G. Park, and J.G. Lee, "Nonlinear Error Equations in SDINS Using Rodrigues Vector", Korean Society for Aeronautical and Space Sciences Spring Annual Meeting, Seoul, Korea, 1996, 243-247.
- H.K. Lee, J.G. Lee, C.G. Park, and Y.K. Rho, "Characteristic Classification of SDINS Error Models", 7th Conference on Guided Weapons, Daejeon, Korea, Sept., 1997, 118-124.
- H.K. Lee, J.G. Lee, G.I. Jee, and C.G. Park, "Data Compression Filter for Real-Time Hybrid Navigation Considering Multiply Delayed GPS Measurements", 6th GPS Workshop, Daejeon, Korea, Dec., 1999, 623-628.
- H.K. Lee, G.I. Jee, and J.G. Lee, "De-correlated Compression Filter Based on Time-Propagated Measurement Fusion ", Korean Automatic Control Conference, Oct., 2001, Jaeju, Korea, 1979-1982.
- H.K. Lee, G.I. Jee, and J.G. Lee, "A Multipath Detection Technique by a Series of GPS Measurements and It statistical Characteristics", 8th GNSS Workshop, Jaeju, Korea, Dec. 2-4, 2001, 124-127.
- K.H. Park, C.G. Park, J.G. Lee, and H.K. Lee, "Fusion of GPS and Barometer for Stabilizing Vertical Channel", 9th GNSS Workshop, Daejeon, Korea, Oct. 31-Nov. 1, 2002, 259-262.
- H.C. Son, W. Kim, H.K. Lee, G.I. Jee, and J.G. Lee, "A Wireless Positioning Algorithm Using GPS/TDOA", KIEE Conference, Jaeju , Korea, July, 2002, 2099-2101.
- H.C. Son, G.I. Jee, J.G. Lee, H.K. Lee, and W. Kim, "Mobile Station Location using Hybrid GPS and TDOA of a Wireless Network", 9th GNSS Workshop, Daejeon, Korea, Oct. 31-Nov. 1, 2002, 155-158.