研究目的
To review 90-GHz high-speed wireless links and high-resolution radars based on linear-cell systems with radio-over-fibre for applications in public transportation systems such as airport runways and railways.
研究成果
Linear-cell systems using RoF technology are effective for high-resolution radar and high-speed communication in public transportation, offering advantages like reduced radiation power and improved handover management. Future work includes expanding field trials and enhancing system capabilities.
研究不足
The paper is a review and does not conduct new experiments, so limitations are not explicitly stated. However, it mentions challenges such as the need for a huge number of links for two-dimensional coverage and susceptibility to radio interference in conventional systems.
1：Experimental Design and Method Selection:
The paper reviews existing systems and field trials, focusing on linear-cell configurations using radio-over-fibre (RoF) for waveform distribution in radar and communication systems. Theoretical models include range resolution calculations (e.g., c/fBW for radar).
2：Sample Selection and Data Sources:
Field trials at Narita International Airport (NRT) and Kuala Lumpur International Airport (KLIA) are mentioned, using radar heads and optical networks.
3：List of Experimental Equipment and Materials:
Includes radar heads, optical fibers, optical modulators (high-extinction ratio), photodetectors, frequency multipliers, amplifiers, and WDM components. Specific models or brands are not detailed.
4：Experimental Procedures and Operational Workflow:
Describes the setup of linear-cell radar with multiple radar heads connected via optical fibers to a central unit, signal transmission using optical two-tone signals, conversion to millimeter-wave signals, and data collection for imaging.
5：Data Analysis Methods:
Involves processing radar images to detect objects, with range resolution calculations and performance metrics like radar cross-section detection thresholds.
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