Thesis
Quantum illumination for practical jamming-resilient LIDAR
- Creator
- Rights statement
- Awarding institution
- University of Strathclyde
- Date of award
- 2024
- Thesis identifier
- T17050
- Person Identifier (Local)
- 201958887
- Qualification Level
- Qualification Name
- Department, School or Faculty
- Abstract
- Quantum-enhanced sensing technologies aim to use novel effects stemming from quantum physics to benefit sensing applications. Such technologies can allow for sensing in regimes for which conventional devices cannot, or they can demonstrate improved performance compared to these conventional devices. We present a quantum-enhanced LIDAR protocol that is practical for real-life use and has an operator-friendly approach to detector data processing and inference of target object presence or absence. The overarching objective of this thesis is to describe such a protocol. Our protocol is based on a quantum illumination system with click detectors (Geiger-mode single-photon avalanche photo-diodes), which uses time-correlated coincidence click-counting. We developed a theoretical framework that processes detector data into a metric intrinsically linked to the likelihood of the absence or presence of a target. This approach allows for complicated multi-channel detector data to condense into an intuitive single value. Furthermore, the theoretical framework also has a level of self-calibration inbuilt. We also characterise the functionality of our protocol in operator-friendly terms such as time-required for confident detection. Our results reinforce the advantage of quantum states, when compared to classical light in certain environmental and technological conditions, particularly when we desire covertness. These advantages persist even when operating at room temperature with off-the-shelf components, a crucial requirement for the practical roll-out of quantum-enhanced technologies. Additionally, we have demonstrated robustness to jamming, for both fast and slow dynamic jamming. Lastly, the theory provides the formalism to include any of the other non-classical correlations of our source; this feature improves the jamming-resilience of the protocol due to noise exclusion and a relative increase of heralding gain. Due to its user-operability and experimental-demonstration with off-the-shelf components, our protocol could hasten the adoption of quantum-enhanced sensing technology.
- Advisor / supervisor
- Pritchard, Jonathan D.
- Jeffers, John (Physicist)
- Resource Type
- DOI
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PDF of thesis T17050 | 2024-10-02 | Pubblico | Scaricare |