Technology: Conference papers

  1. Patrick Henkel, Precise Positioning of UAVs with GNSS, INS, Barometric information and Visual Positioning, Invited Paper, ION GNSS+, Portland, OR, USA, Sep. 2017.
  2. Patrick Henkel, Dimitrios Psychas and Christoph Günther, Satellite Phase Bias Estimation with Global Networks and High-Dimensional Integer Ambiguity Fixing, ION GNSS+, Portland, OR, USA, Sep. 2017.
  3. Patrick Henkel and Houcem Hentati, Reliable RTK Positioning with Tight Coupling of 6 Low-Cost Sensors, Proc. of ION GNSS+, Portland, OR, USA, pp. 733 – 741, Sep. 2016.
  4. Patrick Henkel, Ulrich Mittmann and Michele Iafrancesco, Real-Time Kinematic Positioning with GPS and GLONASS, Proc. of 24-th European Signal Processing Conference (EUSIPCO), Budapest, Hungary, 5 pp., Sep. 2016.
  5. Patrick Henkel, Michele Iafrancesco and Andreas Sperl, Precise Point Positioning with Multipath Estimation, Proc. of ION/ IEEE Position, Location and Navigation Symposium (PLANS), Savannah, GA, USA, 6 pp., Apr. 2016.
  6. Patrick Henkel and Andreas Sperl, Real-Time Kinematic Positioning of Unmanned Air Vehicles, Prof. of IEEE Aerospace Conference, Big Sky, MT, USA, pp. 7, Mar. 2016.
  7. Patrick Henkel and Andreas Sperl, Precise RTK Positioning with GPS/ INS Tight Coupling and Multipath Estimation, Proc. of ION International Technical Meeting, Monterey, CA, USA, pp. 1015 – 1023, Jan. 2016.
  8. Patrick Henkel and Patrick Burger, Multi-Sensor Fusion of GNSS receivers, inertial sensors and cameras for Precise and Reliable Positioning, Proc. of Conference on Future Automotive Technology (COFAT), Fürstenfeldbruck, Germany, pp. 1-5, Apr. 2015.
  9. Zhibo Wen, Yuiji Zhu and Patrick Henkel, Estimation of Code Ionospheric Biases using Kriging method, Proc. of IEEE Aerospace Conference, Big Sky, Montana, USA, pp. 1-8, Mar. 2015.
  10. Patrick Henkel and Michele Iafrancesco, Tightly coupled Position and Attitude Determination with two low-cost GNSS receivers, Proc. of 11-th Intern. IEEE Symp. on Wireless Communication Systems (ISWCS), Barcelona, Spain, pp. 895-900, Aug. 2014.
  11. Patrick Henkel, Philipp Berthold and Christoph Günther, Tightly coupled Position and Attitude Determination with two low-cost GNSS receivers, a gyroscope, and an accelerometer, Proc. of Intern. Symp. on Certification of GNSS Systems and Services (CERGAL), Dresden, Germany, Jul. 2014.
  12. Patrick Henkel, Philipp Berthold and Jane Jean Kiam, Calibration of Magnetic Field Sensors with two mass-market GNSS receivers, Proc. of 12-th IEEE Workshop on Positioning, Navigation and Communication (WPNC), pp. 1-5, Mar. 2014.
  13. Jane Jean Kiam, Juan Manuel Cárdenas and Patrick Henkel, Cooperative RTK positioning for rowing boats with Low-cost GPS receivers, Proc. of ION ITM, San Diego, USA, Jan. 2014.
  14. Chen Zhu, Christoph Bamann, Patrick Henkel and Christoph Günther, Autonomous Robots Grouping in Swarm Exploration based on Adaptive Camera Common Field-of-View Detection, IEEE/ RSJ International Conference on Intelligent Robots and Systems (IROS), Tokyo, Japan, Nov. 2013.
  15. Patrick Henkel and Christoph Günther, Attitude determination with low-cost GPS/INS, Proc. of the 26-th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+), Nashville, TN, USA, pp. 2015-2023, Sep. 2013.
  16. Sebastian Knogl, Patrick Henkel and Christoph Günther, Attitude estimation based on multibeam antenna signals power levels, Proc. of 55-th IEEE Symposium ELMAR, pp. 341-344, Zadar, Croatia, Sep. 2013.
  17. Zhibo Wen, Patrick Henkel and Christoph Günther, Precise point positioning with estimation of code multipath subset, Proc. of 55-th IEEE Symposium , pp. 345-348, Zadar, Croatia, Sep. 2013.
  18. Chen Zhu, Siwei Zhang, Armin Damann, Stephan Sand, Patrick Henkel and Christoph Günther, Return-to-base navigation of robotic swarms in Mars exploration using DoA estimation, Proc. of 55-th IEEE Symposium ELMAR, pp. 349-352, Zadar, Croatia, Sep. 2013.
  19. Patrick Henkel and Jane Jean Kiam, Maximum A Posteriori Probability Estimation of Integer Ambiguities and Baseline, Proc. of 55-th IEEE Symposium ELMAR, pp. 353-356, Zadar, Croatia, Sep. 2013.
  20. Patrick Henkel and Naoya Oku, Cycle slip detection and correction for heading determination with low-cost GPS/ INS receivers, IAG Proc. of VIII Hotine Marussi Symposium, Rome, Italy, Jun. 2013.
  21. Andreas Brack, Patrick Henkel and Christoph Günther, Sequential Best Integer Equivariant Estimation for Geodetic Network Solutions, Proc. of ION ITM, San Diego, USA, pp. 310-317, Jan. 2013.
  22. Sebastian Knogl, Patrick Henkel and Christoph Günther, Precise Positioning and Orbit Estimation for Geostationary Data Relays, Proc. of Navitec, Noordwijk, The Netherlands, Dec. 2012.
  23. Zhibo Wen, Patrick Henkel, Andreas Brack and Christoph Günther, Satellite Bias Determination with Global Reference Station Network and Best-Integer Equivariant Estimation, Proc. of ION GNSS, Nashville, USA, Sep. 2012.
  24. Patrick Henkel, Juan Manuel Cárdenas and Patryk Jurkowski, Cascaded Heading Estimation with Phase Coasting, Proc. of 54-th IEEE Symposium ELMAR, pp. 283-286, Zadar, Croatia, Sep. 2012.
  25. Zhibo Wen, Patrick Henkel, Andreas Brack and Christoph Günther, Best-Integer Equivariant Estimation for Precise Point Positioning, Proc. of 54-th IEEE Symposium ELMAR, pp. 279-282, Zadar, Croatia, Sep. 2012.
  26. Sebastian Knogl, Patrick Henkel and Christoph Günther, Accuracy Bounds for Positioning of Geostationary Data Relays using LEO Satellites, Proc. of 54-th IEEE Symposium ELMAR, pp. 275-278, Zadar, Croatia, Sep. 2012.
  27. Gabriele Giorgi, Patrick Henkel and Christoph Günther, Testing of a Statistical Approach for Local Ionospheric Disturbances Detection, Proc. of ION/ IEEE Position, Location and Navigation Symp. (PLANS), pp. 167-173, Myrtle Beach, USA, Apr. 2012.
  28. Patryk Jurkowski, Patrick Henkel and Christoph Günther, GNSS based Attitude Determination with Statistical and Deterministic Baseline A Priori Information, Proc. of ION Int. Techn. Meeting (ION-ITM), Newport Beach, USA, pp. 1164-1213, Jan. 2012.
  29. Zhibo Wen, Patrick Henkel, Mathieu Davaine and Christoph Günther, Satellite Phase and Code Bias Estimation with Cascaded Kalman Filter, Proc. of Europ. Nav. Conf., London, UK, Okt. 2011.
  30. Patrick Henkel, Patryk Jurkowski and Christoph Günther, Differential Integer Ambiguity Resolution with Gaussian a priori knowledge and Kalman filtering, Proc. of 24th ION GNSS, Portland, USA, pp. 3881-3888, Sep. 2011.
  31. Zhibo Wen, Patrick Henkel and Christoph Günther, Reliable Estimation of Phase Biases of GPS Satellites with a Local Reference Network, Proc. of 53rd Int. IEEE Symp. ELMAR, Zadar, Croatia, pp. 321-324, Sep. 2011.
  32. Sebastian Knogl, Patrick Henkel and Christoph Günther, Precise Positioning of a Geostationary Data Relay using LEO Satellites, Proc. of 53rd Int. IEEE Symp. ELMAR, Zadar, Croatia, pp. 325-328, Sep. 2011.
  33. Patrick Henkel, Reduction and Optimization of Almanac Transmission for GNSS Satellites, Proc. of 53rd Int. IEEE Symp. ELMAR, Zadar, Croatia, pp. 329-332, Sep. 2011.
  34. Patrick Henkel and Patryk Jurkowski, Reliable Integer Ambiguity Resolution: Soft constraints on the baseline length and direction, and New Multi-frequency Code Carrier Linear Combinations, In International Association of Geodesy Symposia 139, DOI 10.1007/978-3-642-37222-3__78, Springer, 2014.
  35. Patrick Henkel and Chen Zhu, Carrier phase integer ambiguity resolution with inequality constraints, Proc. of IEEE Stat. Sign. Proc. Worksh., Nice, France, pp. 409-412, Jun. 2011.
  36. Patryk Jurkowski, Patrick Henkel, Grace Gao and Christoph Günther, Integer Ambiguity Resolution with Tight and Soft Baseline Constraints for Freight Stabilization at Helicopters and Cranes, Proc. of ION Int. Techn. Meeting, San Diego, USA, pp. 336-346, Jan. 2011.
  37. Patrick Henkel and Christoph Günther, Reliable Carrier Phase Positioning with Multi-Frequency Code Carrier Linear Combinations, Proc. of 23rd ION Int. Techn. Meeting (ION-GNSS), Portland, USA, pp. 185-195, Sep. 2010.
  38. Patrick Henkel, Zhibo Wen and Christoph Günther, Estimation of satellite and receiver biases on multiple Galileo frequencies with a Kalman filter, Proceedings of the 2010 International Technical Meeting of the Institute of Navigation, San Diego, CA, USA, pp. 1067-1074, Jan. 2010.
  39. Kaspar Giger, Patrick Henkel and Christoph Günther, Joint satellite code and carrier tracking, Proceedings of the 2010 International Technical Meeting of the Institute of Navigation, San Diego, CA, USA, pp. 636-645, Jan. 2010.
  40. Markus Rippl, Susanne Schlötzer and Patrick Henkel, High integrity carrier phase based positioning for precision landing using a robust nonlinear filter, Proceedings of the 2010 International Technical Meeting of the Institute of Navigation, San Diego, CA, USA, pp. 577-590, Jan. 2010.
  41. Patrick Henkel, Zhibo Wen and Christoph Günther, Estimation of code and phase biases on multiple frequencies with a Kalman filter, Proc. of 4th European Workshop on GNSS Signals and Signal Processing, Oberpfaffenhofen, Germany, Dec. 2009.
  42. Kaspar Giger, Patrick Henkel and Christoph Günther, Multifrequency, multisatellite carrier tracking, Proc. of 4th European Workshop on GNSS Signals and Signal Processing, Oberpfaffenhofen, Germany, Dec. 2009.
  43. Patrick Henkel, Bootstrapping with Partial Integer Decorrelation and Multi-frequency combinations of Galileo measurements in the presence of Biases, Intern. Association of Geodesy Scientific Assembly (IAG), Buenoes Aires, Argentina, Sep. 2009.
  44. Patrick Henkel, Grace Gao, Todd Walter and Christoph Günther, Robust Multi-Carrier, Multi-Satellite Vector Phase Locked Loop with Wideband Ionospheric Correction and Integrated Weighted RAIM, Proc. of European Navigation Conference (ENC), Naples, Italy, May 2009.
  45. Patrick Henkel, Victor Gomez and Christoph Günther, Modified LAMBDA for precise carrier phase positioning with multiple frequencies in the presence of biases, ION Intern. Techn. Meeting (ITM), Anaheim, USA, pp. 642-651, Jan. 2009.
  46. Patrick Henkel and Christoph Günther, Precise Point Positioning with multiple Galileo frequencies, Proc. of ION/ IEEE Position, Location and Navigation Symposium (PLANS), Monterey, USA, pp. 592-599, May 2008.
  47. Patrick Henkel, Kaspar Giger and Christoph Günther, Multi-Carrier Vector Phase Locked Loop for Robust Carrier Tracking, Proc. of European Navigation Conference (ENC), Toulouse, France, Apr. 2008.
  48. Patrick Henkel and Christoph Günther, Schätzung der Trägerphasenmehrdeutigkeit bei Galileo, Proc. der 10. ITG-Fachgruppensitzung Signalverarbeitung in der Navigation, Oberpfaffenhofen, Oct. 2007.
  49. Patrick Henkel, Geometry-free linear combinations for Galileo, Proc. of 58th International Astronautical Congress (IAC), 1st prize of international student contest (Pierre Contensou Medal), Hyderabad, India, Sep. 2007.
  50. Matthias Süß, Patrick Henkel and Yuan Lu, Steering of the reference timescale for German Galileo test environment, European Frequency and Time Forum (EFTF), Geneva, Switzerland, May 2007.
  51. Patrick Henkel, Doping of Extended Mappings for Signal Shaping, Proc. of 65th IEEE Vehicular Technology Conference (VTC), Dublin, Ireland, May 2007.
  52. Patrick Henkel and Christoph Günther, Sets of robust full-rank linear combinations for wide-area differential ambiguity fixing, Proc. of 2nd Workshop on GNSS Signals and Signal Processing, Noordwijk (ESTEC), The Netherlands, 5 pp., Apr. 2007.
  53. Patrick Henkel and Christoph Günther, Three frequency linear combinations for Galileo, Proc. of 4th IEEE Workshop on Positioning, Navigation and Communication (WPNC ’07), Hannover, Germany, pp. 239-245, Mar. 2007.
  54. Patrick Henkel and Christoph Günther, Integrity Analysis of Cascade Integer Resolution with Decorrelation Transformations, Proc. of ION National Technical Meeting (NTM), San Diego, USA, pp. 903-910, Jan. 2007.
  55. Patrick Henkel, Extended Mappings for Bit-Interleaved Coded Modulation, 17th IEEE Symposium on Personal, Indoor and Mobile Communications (PIMRC), Helsinki, Finland, Sep. 2006.
  56. Patrick Henkel, Integrity of differential carrier phase positioning, 14th Joint Conference on Coding and Communications (JCCC), Sölden, Austria, Mar. 2006.
  57. Frank Schreckenbach and Patrick Henkel, Signal Shaping using Non-Unique Symbol Mappings, Proc. of 43rd Annual Allerton Conference on Communication, Control, and Computing, Monticello, USA, Sep. 2005.
  58. Frank Schreckenbach, Patrick Henkel, Norbert Görtz and Gerhard Bauch, Analysis and Design of Mappings for Iterative Decoding of BICM, Proc. of 11th National Symposium on Radio Sciences URSI, Poznan, Poland, pp. 82-87, Apr. 2005.