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3D Imaging Millimeter Wave Circular Synthetic Aperture Radar.
1Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, USA. ryzhang@email.arizona.edu.
Sensors (Basel, Switzerland)
|June 21, 2017
Summary
A novel millimeter wave (mmWave) 3D imaging radar creates high-resolution 3D images using self-movement along a circular path. This affordable, lightweight radar utilizes inverse Radon transform and compressed sensing for advanced sensing results.
Area of Science:
- Electrical Engineering
- Radar Systems
- Signal Processing
Background:
- 3D imaging requires complex systems, often limiting resolution and affordability.
- Millimeter wave (mmWave) technology offers potential for high-resolution sensing.
Purpose of the Study:
- To propose a novel, cost-effective, and high-resolution 3D imaging radar system.
- To leverage self-movement for aperture synthesis in both azimuth and elevation.
Main Methods:
- A millimeter wave radar system is designed.
- The radar moves along a circular track to synthesize a large aperture.
- Inverse Radon transform is employed for 3D image reconstruction.
- Compressed sensing techniques are investigated to enhance sensing performance.
Main Results:
- The proposed radar successfully generates high-resolution 3D images.
- Simulations and experimental results validate the radar's design and performance.
- The system utilizes a single transceiver, enabling a compact and affordable solution.
Conclusions:
- A light, affordable, high-resolution 3D mmWave imaging radar is demonstrated.
- The approach of using self-movement for aperture synthesis is effective.
- The integration of compressed sensing further improves imaging quality.
