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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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Enhancing the Radar Cross-Range Resolution in Ultra-Fast Radar Scans by Utilizing Frequency Coded Sub-Channels
Christoph Baer1, Nicholas Karsch1, Robin Kaesbach1
1Institute of Electronic Circuits, Ruhr University Bochum, Universitaetsstr. 150, 44801 Bochum, Germany.
Sensors (Basel, Switzerland)
|May 20, 2022
Summary
This study introduces a single-channel radar using frequency-coded sub-channels for improved cross-range resolution. The method scans the entire area of interest in one measurement, enhancing detection capabilities.
Area of Science:
- Radar Systems Engineering
- Signal Processing
- Electromagnetics
Background:
- Traditional radar systems face limitations in achieving high cross-range resolution within a single measurement.
- Efficiently scanning a large area of interest (AOI) requires advanced techniques.
Purpose of the Study:
- To present a novel single-channel radar method for enhanced cross-range resolution using frequency-coded sub-channels.
- To demonstrate the capability of scanning the entire AOI in a single radar measurement.
Main Methods:
- Utilizing frequency-coded sub-channels for distinct signal signatures.
- Overlapping antenna beams of sub-channels to create multiple coding signatures.
- Detailed presentation of hardware components (coding filters, antennas) and signal processing techniques.
Main Results:
- Achieved high detection properties across various radar scenarios.
- Demonstrated the effectiveness of overlaid antenna beams for improved resolution.
- Validated the applicability of the proposed single-channel radar method.
Conclusions:
- The frequency-coded sub-channel radar offers a viable solution for high cross-range resolution.
- The method enables efficient scanning of the entire AOI within a single measurement.
- The proposed system shows significant potential for advanced radar applications.
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