GNSS Receivers and Signal Processing

1. 1. Yang, R., D. Xu,, Y. Morton, “Generalized multi-frequency GPS carrier tracking architecture: design and performance analysis,” submitted, IEEE Trans. Aeros. Elec. Sys., 2019.
   2. Wang, Y., R. Yang, Y. Morton, “Kalman filter-based robust closed-loop carrier tracking of airborne GNSS radio-occultation signals,” submitted, IEEE Trans. Aeros. Elec. Sys., 2019.
   3. Xu, D.,, Y. Morton, “GPS navigation data bit decoding error during strong equatorial scintillation,” submitted to GPS Solutions,, 2018.
   4. Jiao, Y., J. Hall, Y. Morton, “Performance evaluation of an automatic GPS ionospheric phase scintillation detector using a machine-learning algorithm”, Navigation, J. Institute of Navigation, 64(3):391-402, DOI: 10.1002/navi.188, Summer 2017.
   5. Jiao, Y., J. Hall, Y. Morton, “Automatic equatorial GPS amplitude scintillation detection using a machine learning algorithm”, IEEE Trans. Aero. Elec. Sys., 53(1): 405-418, DOI:10.1109/TAES.2017.2650758, Online ISSN 1557-9603, 2017.
   6. Lee, J., Y. Morton, J. Lee, H-S. Moon,, J. Seo, “Monitoring and mitigation of ionospheric anomalies for GNSS-based safety critical systems: A review of up-to-date signal processing techniques,” Special issue on Advances in Signal Processing for Global Navigation Satellite Systems, IEEE Signal Proc. Magazine, 34(5):96-110, DOI: 10.1109/MSP.2017.2716406, 2017.
   7. Xu D., Y. Morton, “Semi-open loop estimation of GPS carrier phase variations during deepamplitude fading of equatorial ionospheric scintillation,” accepted, IEEE Trans. Aero. Elec. Sys., 2017.
   8. Jiao, Y. J. Hall, Y. Morton, “Performance evaluation of an automatic GPS ionospheric phase scintillation detector using a machine-learning algorithm,” Navigation, J. Institute of Navigation, Summer 2017.
   9. Yang, R., K. Ling, E. Poh, Y. Morton, “Generalized GNSS signal carrier tracking in challenging environments: part I – modeling and analysis,” IEEE Trans. Aero. Elec. Sys., PP(99), doi:10.1109/TAES.2017.2673998, 2017.
   10. Yang, R., Y. Morton, K. Ling, E. Poh, “Generalized GNSS signal carrier tracking in challenging environments: part II - optimization and implementation,” accepted, IEEE Trans. Aero. Elec. Sys., PP(99), doi: 10.1109/TAES.2017.2674198, 2017.
   11. Jiao, Y., J. Hall, Y. Morton, “Automatic equatorial GPS amplitude scintillation detection using machine learning,” IEEE Trans. Aero. Elec. Sys., 53(1), 405-418,DOI:10.1109/TAES.2017.2650758, Online ISSN 1557-9603, 2017.
   12. Chen, X., Y. Morton, “Iterative subspace alternating projection method for GNSS multipath DOA estimation,” IET Radar, Sonar & Navigation, DOI: 10.1049/iet-rsn.2015.0508, Online ISSN 1751-8792, 2016.
   13. Yin, H., Y. Morton, M. Carroll, E. Vinande, “Performance analysis of L2 and L5 CNAV broadcast ephemeris for orbit calculation,” Navigation, J. Institute of Navigation, 62(2), 121-140, Summer 2015.
   14. Liu, X., M. Liang, Y. Morton, P. Closas, T. Zhang, and Z. Hong, “Performance evaluation of MSK and OFDM modulations for future GNSS signals,” GPS Solutions, doi 10.1007/s10291-01400368-6, 1-13, 2014.
   15. Kou, Y., Y. Morton, “Oscillator frequency offset impact on software GPS receivers and correction algorithms,” IEEE Trans. Aero. Elec. Sys., 49(4), 2158-2178, 2013.
   16. Chen, X., Y. Morton, F. Dovis, “A computationally efficient iterative MLE for GPS AOA estimation,” IEEE Trans. Aero. Elec. Sys., 49(4), 2707-2716, 2013.
   17. Chen, X., F. Dovis, S. Peng, Y. Morton, “Comparative studies of GPS multipath mitigation methods performance,” IEEE Trans. Aero. Elec. Sys., 49(3), 1555-1568, 2013.
   18. Zhang, L., Y. Morton, “GPS carrier phase spectrum estimation for ionospheric scintillation studies,” NAVIGATION, J. Institute of Navigation, Vol. 60, No. 2, p113-122, Summer 2013.
   19. Peng, S., Y. Morton, “A USRP2-based reconfigurable multi-constellation multi-frequency GNSS software receiver front end,” GPS Solutions, DOI: 10.1007/s10291-012-0263-y, 2012.
   20. Brenneman, M., Y. Morton, “Functional bandwidth criterion for adaptive array performance,” IEEE Trans. Aero. Elec. Sys., 46(3), 1226-1235, 2010.
   21. Brenneman, M., Y. Morton, Q. Zhou, “GPS multipath detection with ANOVA for adaptive arrays,” IEEE Trans. Aero. Elec. Sys., 46(3), 1171-1185, 2010.
   22. Brenneman, M., Y. Morton, “False alarm rate estimation for information-theoretic-based source enumeration methods,” EURASIP J. Adv. Signal Processing, Article ID 697451, 10 pages, 2009. doi:10.1155/2009/697451, 2009.
   23. Morton, Y., M. Miller, J. Tsui, D. Lin, Q. Zhou, “GPS civil signal self-interference mitigation during weak signal acquisition,” IEEE Trans. Signal Processing, 55(12), 5859-5893, 2007.
   24. Morton, Y., M. French, Q. Zhou, J. Tsui, D. Lin, M. Miller, D. Jennings, “A software approach to access ultra-wide band interference on GPS receivers,” IEEE Trans. Aero. & Elec. Magazine, 20(1), 28-33, 2005.

Ionosphere

1. 1. Breitsch, B., D. Xu, Y. Morton, C. Rino, “GNSS carrier phase transitions due to ionosphere diffraction: simulation and characterization,” submitted to IEEE Trans. Geosci. Remote Sensing, 2019.
   2. Liu, Y., I. Collett, Y. Morton, “Application of neural network to GNSS-R wind speed retrieval,” submitted to IEEE Trans. Geosci. Remote Sensing, 2019.
   3. Collett, I., Y. Morton, B. Breitsch, “Characterization and mitigation of interference between GNSS radio occultation and reflectometry signals for low altitude occultations,” submitted to Navigation, J. Institute of Navigation, 2018.
   4. Wang, J., Y. Morton, “A hybrid correlation model for the space-receiver technique,” Radio Sci., 54(3), 281-297, DOI: 10.1029/2018RS006662, 2019.
   5. Han, B., Y. Morton, E. Gunawan, D. Xu, “Planetary boundary layer height detection using mountain-based radio occultation signal amplitude,” IEEE Trans. Geosci. Remote Sensing, DOI: 10.1109/TGRS.2018.2890676, 2019.
   6. Mahmoudian, R., W. Scales, Y. Morton, S. Taylor, “Artificial ionospheric GPS phase scintillation excited during radiowave heating of the ionosphere,” accepted Radio Sci., 2018.
   7. Jiao, Y., D. Xu, C. Rino, Y. Morton, “Simulation and characterization of multi-frequency strong equatorial ionospheric scintillation”, to appear, IEEE Trans. Aero. Elec. Sys., 2018.
   8. Jiao, Y., C. Rino, Y. Morton, “Ionospheric scintillation simulation on equatorial GPS signals for dynamic platforms,” Navigation, J. Institute of Navigation, doi:10.1002/navi.231, 2018.
   9. Wang, J., Y. Morton, “Ionospheric irregularity drift velocity estimation using multi-GNSS spaced-receiver array during high latitude phase scintillation”, Radio Sci., DOI: 10.1002/2017RS006470, 2018.
   10. Wang, J., Y. Morton, “A comparative study of ionospheric irregularity drift velocity derived from a GNSS receiver array and PFISR measurements during high latitude ionospheric scintillation”, J. Geophy. Res., 122(6): 6858-6881, DOI:10.1002/2017JA024015, 2017.
   11. Jiao, Y., D. Xu, Y. Morton, C. Rino, “Equatorial scintillation amplitude fading characteristics across the GPS frequency bands,” Navigation, J. Institute of Navigation, 63(3), 267-281, 2016.
   12. Wang, J., Y. Morton, “High latitude ionospheric irregularity drift velocity estimation using spaced GPS receiver carrier phase time-frequency analysis,” IEEE Trans. Geosci. Remote Sensing, 53(11), 6099-6113, doi:10.1109/TGRS.2015.2432014, 2015.
   13. Jiao, Y., Y. Morton, “Comparison of the effects of high-latitude and equatorial ionospheric scintillation on GPS signals during the maximum of solar cycle 24,” Radio Sci., 50(9), 886-903, 10.1002/2015RS005719, 2015.
   14. Prikryl, P., R. Ghoddousi-Fard, E. G. Thomas, J. M. Ruohoniemi, S. G. Shepherd, P. T. Jayachandran, D. W. Danskin, E. Spanswick, Y. Zhang, Y. Jiao, Y. T. Morton, “GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012 – Part 1: The North American sector,” Ann. Geophy., 33(6), 637-656, 2015.
   15. Prikryl, P., R. Ghoddousi-Fard, L. Spogli, C. N. Mitchell, G. Li, B. Ning, P. J. Cilliers, V. Sreeja, M. Aquino, M. Terkildsen, P. T. Jayachandran, Y. Jiao,Y. T. Morton, J. M. Ruohoniemi, E. G. Thomas, Y. Zhang, A. T. Weatherwax, L. Alfonsi, G. De Franceschi3 V. Romano, “GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012 – Part 2: Interhemispheric comparison,” Ann. Geophy., doi: 10.1002/2015JA021341, 2015.

   16. Park, J., D. Grejner-Brzezinska, R. von Frese, Y. Morton, “GPS discrimination of traveling ionospheric disturbances from underground nuclear explosions and earthquakes,” Navigation, NAVIGATION, J. Institute of Navigation, 61(2),125-134,2014.

   17. Jiao, Y., Y. Morton, S. Taylor, W. Pelgrum, “Characterization of high latitude ionospheric scintillation of GPS signals,” Radio Sci., 48, doi:10.1002/2013RS005259, 2013.

   18. Xu, R., Z. Liu, M. Li, Y. Morton, W. Chen, “An analysis of low-latitude ionospheric scintillation and its effects on precise point positioning,” J. Global Positioning Sys., 11(1), 22-32, doi:10.5081/jgps.11.1.22, 2012.

   19. Matteo, N., Y. Morton, “Ionosphere geomagnetic field: comparison of IGRF model prediction and satellite measurements 1991-2010,” Radio Sci., 46, RS4003, doi:10.1029/2010RS004529, 2011.

   20. Moore, R., Y. Morton, “Magneto-ionic polarization and GPS signal propagation through the ionosphere,” Radio Sci., 46, RS1008, doi:10.1029/2010RS004380, 2011.

   21. Park, J., R. Frese, D. Grejner-Brzezinska, Y. Morton, L. Gaya-Pique, “Ionospheric detection of the 25 May 2009 North Korean underground nuclear test,” Geophys. Res., Lett., 38, L22802, doi:10.1029/2011GL049430, 2011.

   22. Zhou, Q., Y. Morton, C. Huang, N. Aponte, M. Sulzer, and S. Gonzalez, “Incoherent scatter radar observation of E‐region vertical electric field at Arecibo,” Geophys. Res. Lett., 38, L01101, doi:10.1029/2010GL045549, 2011.

   23. Matteo, N., Y. Morton, “Higher-order ionospheric error at Arecibo, Millstone, and Jicamarca,” Radio Sci., 45, RS6006, doi:10.1029/2010RS004394, 2010.

   24. Morton, Y., F. van Graas, Q. Zhou, J. Herdtner, “Assessment of the higher order ionosphere error on position solutions,” Navigation, 56(3), 185-193, Fall 2009.

   25. Morton, Y., Q. Zhou, F. van Graas, “Assessment of second order ionosphere error in GPS range observables using Arecibo incoherent scatter radar measurements,” Radio Sci., 44, RS1002, doi:10.1029/2008RS003888, 2009.

   26. Zhou, Q., Y. Morton, “Gravity wave propagation in a non-isothermal atmosphere with height varying background wind,” Geophys. Res. Lett., 34, L23803,doi:10.1029/2007GL031061, 2007.

   27. Zhou, Q., Y. Morton, “A case study of mesospheric gravity wave momentum flux and dynamical instability using the Arecibo dual beam incoherent scatter radar,” Geophy. Res. Lett., 33, L10802, doi:10.1029/2005GL025608, 2006.

   28. Martin, J., Y. Morton, Q. Zhou, “Neural network development for the forecasting of upper atmosphere parameter distributions,” Adv. Space Res., 36(12), 2480-2485, 2005.

   29. Zhou, Q., Y. Morton, “Incoherent scatter radar study of photochemistry in the E-region,” Geophys. Res. Lett., 32, L01103, doi:10.1029/2004GL021275, 2005.

   30. Zhou, Q., J. Friedman, S. Raizada, C. Tepley, Y. Morton, “Morphology of nighttime ion, potassium and sodium layers in the meteor zone above Arecibo,” J. Atmos. Solar-Terr. Phys., 67(13), 1245-1257, 2005.

   31. Zhou, Q., Y. Morton, J. Mathews, D. Janches, “Aspect sensitivity of VHF echoes from field aligned irregularities in meteor trails and thin ionization layers,” Atmos. Chem. & Phy., 4(3), 685-692, 2004.

   32. Mathews, J., Y. Morton, "Radar measurements of dynamics and layering processes in the 80-150 km region at Arecibo," Adv. Space Res., 14(9), 153-169, 1994.

   33. Hays, P., D. Wu, M. Burrage, D. Gell, H. Grassl, R. Lieberman, A. Marshall, Y. Morton, D. Ortland, W. Skinner, “Observations of the diurnal tide from space,” J. Atmos. Sci., 51(20), 3077-3093,1994.

   34. Morton, Y., R. Lieberman, P. Hays, D. Ortland, A. Marshall, D. Wu, W. Skinner, M. Burrage, D. Gell, J. Yee, “Global mesospheric tidal wind fields observed by the High Resolution Doppler Imager on board the Upper Atmosphere Research Satellite,” Geophy. Res. Lett., 20(12), 1263-1266, 1993.

   35. Barrage, M., W. Skinner, A. Marshall, P. Hays, R. Lieberman, S. Franke, D. Gell, D. Ortland, Y. Morton, F. Schmidlin, R. Vincent, and D. Wu, “Comparison of HRDI wind measurements with radar and rocket observations,” Geophy. Res. Lett., 20(12), 1259-1262, 1993.

   36. Morton, Y. and J. Mathews, “Effects of the 13-14 March 1989 geomagnetic storm on the E-region tidal ion layer structure at Arecibo during AIDA,” J. Atmos. Terr. Phy., 55(3), 467- 485, 1993.

   37. Morton, Y., J. Mathews, Q. Zhou, “Further evidence for a 6-hour tide above Arecibo,” J. Atmos. Terr. Phy., 55(3), 459- 465, 1993.

   38. Mathews, J., Y. Morton, Q. Zhou, “Observation of ion layer motions during the AIDA campaign,” J. Atmos. Terr. Phy., 55(3), 447- 457, 1993.

   39. Mathews, J., Q. Zhou, C. Philbrick, Y. Morton, and C. Gardner, “Observations of ion and sodium layer coupled processes during AIDA,” J. Atmos. Terr. Phy., 55(3), 487-498, 1993.

   40. Hays, P., V. Abreu, M. Burrage, D. Gell, H. Grassl, A. Marshall, Y. Morton, D. Ortland, W.R. Skinner, D. Wu, and J. Yee, “Remote sensing of mesospheric winds with the High Resolution Doppler Imager,” Planet. Space Sci., 40(12), 1599- 1606, 1992.

   41. Tong, Y. (maiden name), J. Mathews, W. Ying, “An upper E-region quarter diurnal tide at Arecibo?” J. Geophy. Res., 93(A9), 10047-10051, 1988.

Sensors, Sensor Integration, and Other

1. 1. Wang, P., Y. Morton, “Efficient crowdsourcing GNSS RFI localization technique using differential RSS,” accepted, IEEE Trans. Aeros. Elec. Sys., 2019.

   2. Garmatyuk, D., B. Jameson, R. Cole, Y. Morton, S. Mudaliar, “Target scene frequency diversity exploitation with UWB OFDM radar,” accepted, IET Radar, Sonar, and Navigation, 2014.

   3. Kauffman, K., J. Raquet, Y. Morton, D. Garmatyuk, “Real-time UWB-OFDM radar based navigation in unknown terrain,” IEEE Trans. Aero. Elec. Sys.,49(3), 1453-1466, 2013.

   4. Garmatyuk, D., Y. Morton, X. Mao, “Radar and GPS system inter-operability with UWB-OFDM signals,” IEEE Trans. Aero. Elec. Sys., 47(1), 265-274, 2011.

   5. Xu, H., L. Yang, Y. Morton, M. Miller, “Mistiming performance analysis of the energy detection based ToA estimator for MB-OFDM,” IEEE Trans. Wireless Comm., 8(8), 3980-3984, 2009.

   6. Dempsey, T., G. Sahin, Y. Morton, C. Hopper, “Intelligent sensing and classification in ad hoc networks: a case study,” IEEE Trans. Aero. Elec. Sys. Mag., 24(8), p23-30, Sept. 2009.  

   7. Dempsey, T., G. Sahin, Y. Morton, “Wireless (mobile) ad hoc network intelligent detection and characterization,” Special Section on Information and Communication System Security, IEICE Trans., E92-D, No.5, 818-817, 2009.

   8. Newstadt, G., K. Green, D. Anderson, M. Lang, Y. Morton, J. McCollum, “Miami Redblade III: A GPS-aided autonomous lawnmower,” J. Global Positioning Sys., 7(2), 115-124, 2008.

   9. Morton, Y., D. Troy, G. Pizza, “A state-based modeling approach to develop component-based control software for flexible manufacturing systems,” Int. J. Computer Integrated Manufacturing, 16(4-5), 292-306, 2003.