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Updated: Oct 3, 2025
06:25
Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
Published on: February 12, 2014
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Experimental evaluation of a linear angular momentum multiplexed radio link for moving platforms
Ben Allen1,2, Tim W C Brown3, Timothy D Drysdale4
1Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK.
Proceedings. Mathematical, Physical, and Engineering Sciences
|February 14, 2022
Summary
Linear angular momentum multiplexing (LAMM) enhances spectral efficiency for mobile communications. This study validates LAMM
Area of Science:
- Wireless communication systems
- Electromagnetics and applied physics
Background:
- High spectral-efficiency communication is crucial for mobile platforms like trains.
- Linear angular momentum multiplexing (LAMM) is a novel technique proposed for this purpose.
Purpose of the Study:
- To experimentally validate the performance of LAMM for mobile communication.
- To assess the spectral efficiency and crosstalk of LAMM in a real-world scenario.
Main Methods:
- A 2x2 antenna system operating at 2.35 GHz was used for experiments.
- RF pre-coding and software-defined radios transmitted two independent video streams.
- Linear motion was introduced to test translation-invariance.
Main Results:
- Crosstalk between channels was sufficiently low to support uninterrupted video streams.
- LAMM coding consistently resulted in higher spectral efficiency compared to uncoded channels.
- Experimental data was analyzed using an analytical model.
Conclusions:
- LAMM is a viable technique for high spectral-efficiency communication between moving platforms.
- The experimental system demonstrated the effectiveness and translation-invariance of LAMM.
- LAMM offers significant spectral efficiency gains over traditional methods.
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