Thursday

Evaluation of Nominal Signal Deformations on E1/E5a for Dual-Frequency Aviation Users

Christoph Enneking, Steffen Thölert, Florian C. Beck, Michael Meurer, German Aerospace Center (DLR)

Session A3: Aviation, Aeronautics, and Uncrewed Aerial Applications 1, Thursday, September 11, 8:57 a.m.

Presenter: Christoph Enneking

  • Characterization of signal deformation effects on all Galileo E1 and E5a signals using high-resolution/high-gain signal captures
  • Analog signal distortion analyses are presented and compared with historical data, along with the resulting user biases across receiver configurations

Impact of Dual-Frequency Multi-Constellation GBAS Data Link Constraints on Integrity Monitorin

Maria Caamano, Daniel Gerbeth, German Aerospace Center (DLR); Susumu Saito, Electronic Navigation Research Institute; Andrew K. Sun, Jiyun Lee, Korea Advanced Institute of Science and Technology Sam Pullen, Stanford University

Session A3: Aviation, Aeronautics, and Uncrewed Aerial Applications 1, Thursday, September 11, 10:40 a.m.

Presenter: Maria Caamano

GAUSS: Using an In-Orbit-Demonstrator for In-Space GNSS Signal Monitoring

Matthias Simon, Thomas Zechel, Omar Garcia Crespillo, Grzegorz Michalak, Tobias D. Schmidt, Gabriele Giorgi, Michael Meurer, German Aerospace Center (DLR); Can Oezmaden RWTH Aachen University; Jean-Jacques Wasbauer, Clement Gazzino, Francois Dufour, Alexandre Ramos, Centre National d’Études Spatiales (CNES)

Session A4a: Applications Using Communication Technologies and Collaborative Positioning , Thursday, September 11, 2:35 p.m.

Presenter: Matthias Simon

  • Integrity augmentation on a global scale using a LEO-constellation (GAUSS)
  • IOD mission exploiting a reduced GAUSS payload to validate the global concept
  • Simulation of a FOC GAUSS constellation enabling a performance assessment

Error Bound Analysis of Marker-Based Visual Navigation in Urban Air Mobility: A Parameter Study and Experimental Verification for Vertical Operations

Young-Hee Lee and Chen Zhu, German Aerospace Center (DLR)

Session D4: Robust Navigation Using Alternative Navigation Sensors and Solutions, Thursday, September 11, 4:23 p.m.

Presenter: Young-Hee Lee

  • Verification of the two-step error propagation method for marker-based navigation using real-world data
  • Study of the key factor’s impact on the performance of the error propagation method.

GNSS Array Receiver and CRPA for LEO (Cubesats)

E. Pérez-Marcos1,2, M. Cuntz1,2, S. Caizzone1, S.P. Hehenberger1, A. Konovaltsev1, M. Meurer1,2, 1 German Aerospace Center (DLR), 2 Chair of Navigation, RWTH Aachen University, Germany

Session B4a: Navigation Resilience to Interference and Cyber-Attacks, Thursday, September 11, Alternate

Presenter: E. Pérez-Marcos

Secondary Payload to a 16U CubeSat:

  • 1U four elements Antenna Array and 1U SDR Array Receiver prototypes developed by DLR-KN-NAV.
  • Radio Frequency data recording, enabling RFI monitoring from LEO orbit, estimation of signals bearing (DoA) and potentially source localization using a single platform. Allowing monitoring signals originated in the earth surface but also impinging from space.
  • Jamming Robust GNSS Array Receiver providing platform attitude, on-line blind array calibration, Direction of Arrival and accurate robust PVT solution.
  • Two stages RFI mitigation scheme: before correlation, RFI signals will be digitally mitigated. After the correlation, Digital Beamforming&Beamsteering applied to maximize the energy received from the GNSS satellites, hence increasing C/N0.
  • Controlled Reception Pattern Antenna (CRPA) analog output, coming out from the SDR Array Receiver, just before the correlation stage.

Integrity Monitoring of Local Minima Convergence in Vision-Based Navigation

Chen Zhu, Antonino Triolo, Michael Meurer, German Aerospace Center (DLR)

Session D4: Robust Navigation Using Alternative Navigation Sensors and Solutions, Thursday September 10, Alternate

Presenter: Chen Zhu