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Open Opportunities

091 - Proof-of-concept of SOOP with broadband satcom signals in Ku/Ka-band

The feasibility of Positioning-Navigation-Timing (PNT) using signals of opportunities from broadband satellite communications systems operating in Ku/Ka-band has been demonstrated in the US in the academic context in recent years. The next step towards potential commercial products is to prove the concept with enabling technologies representative of real-world applications (e.g., form factor,…

090 - Robust Navigation for Autonomous Driving with Low-Cost/SWaP Arrays of Antennas

The derivation of robust positioning solutions under harsh propagation conditions typical of autonomous driving applications remains an open problem in GNSS. The application of Multiple-Input-Multiple-Output (MIMO)-GNSS-like processing approaches for robust GNSS positioning with low-cost arrays of antenna platforms has shown important benefits in the presence of obstruction, fading and multipath…

089 - Modelling Quantum Sensors in a realistic navigation system context

As well as the potential next generation quantum time and frequency sources, the world of quantum systems contemplates evolutions of gyroscopes, accelerometers, gravitational sensors and magnetometers based on quantum effects. Predictions of the performance of these new quantum sensors offer the prospect of accurate navigation without GNSS for long periods of time with some predicting that GNSS…

088 - Proof-of-concept of advanced navigation algorithms based on factor graph optimization

Factor graph optimization is gaining attention from the community (it has won the Google challenge) as is outperforming traditional positioning algorithms. Factor graph optimization may be used to replace the traditional Weighted Least Square (WLS) or Kalman Filter (KF)-based solutions, both in stand-alone and hybrid positioning solutions in combination with sensors. Thus, its application may be…

087 - Verifiable AI/ML techniques for PNT applications

Artificial intelligence (AI) is increasingly utilized in the PNT field, enhancing the performance and reliability of Global Navigation Satellite Systems (GNSS), from RF interference detection and mitigation to sensor fusion. The advancement and ever-increasing size of neural networks increase the complexity of applications supported by AI, and with the increasing complexity, verifiability…

086 - Instantaneous High-Accuracy Positioning based on Hybrid-Meta-Signal Solutions

Meta-signal processing has raised interest in order to enable the achievement of high accuracy solutions based on the joint exploitation of two or more signal components as a single composite signal. The drawback of this approach is the appearance of multiple correlation peaks, inducing potential biases in the meta-signal pseudoranges when operating in harsh environments. On the other hand,…

085 - Navigation technologies for Shield nanosatellite

One of the ESA’s accelerators for the usage of space is:  PROTECTION OF SPACE ASSETS, to ensure resilient availability and functioning of space infrastructure on which Europe’s economy and society relies for day-to-day life. According to the DoD Space Surveillance Network, there are ~34,000 pieces of orbital debris with diameter greater than 10cm. This is the portion of objects…

084 - Digital Beamforming for GNSS-R Radio occultation payload

GNSS Radio Occultation is a well-established technique while the younger GNSS Reflectometry has seen a rapid evolution around the world, in particular, after the launch UK-DMC satellite in 2003 Some examples of GNSS-R missions flying today are: the NASA’s CyGNSS 8-satellite constellation, the Spire Global cubesat constellation, the FSSCat cubesat, the Chinese Bufeng 1 Twin Satellites and…

083 - Deployable satellite navigation antenna

The flourishing of utilisation of small and nano satellites in LEO orbit, and the need for ever better navigation accuracy, suggests the study of (relatively) high gain deployable navigation receiver antennas, in new frequency bands, that can be stowed at launch. In a small satellite, this antenna should allow to achieve better performance when deployed than equivalent non-deployable patch,…

082 - Low noise frequency tunable microwave generation using photonic integrated microcombs

Ground based optical free space communication experiments have enabled >1 Tb/second communication links based on the multitude of carriers that are individually modulated to carry information. Optical frequency combs with line spacings that match the ITU grid have potential to implement free space communications in space.  These advances utilize the unique features of microcombs: in contrast…