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Precise ranging for the multi-region by using multi-beam chaotic polarization components in the multiple parallel
Optics Express
|March 17, 2021
Summary
This study introduces a new method for precise multi-region ranging using chaotic polarization components from spin-VCSELs. This technique achieves high accuracy and resolution for target surface quality detection.
Area of Science:
- Optoelectronics
- Photonics
- Metrology
Background:
- Accurate ranging is crucial for surface inspection.
- Existing methods may lack precision for multi-region targets.
- Chaotic signals offer unique properties for radar applications.
Purpose of the Study:
- To develop a novel scheme for accurate multi-region ranging.
- To utilize chaotic x polarization components from spin-VCSELs for ranging.
- To assess the performance and potential applications of the proposed method.
Main Methods:
- Employing multiple parallel optically pumped spin-VCSELs with optical injection.
- Generating and utilizing uncorrelated, fast-dynamic chaotic x polarization components.
- Correlating time-delay reflected chaotic polarization radar probe waveforms with reference waveforms.
Main Results:
- Achieved accurate ranging to multi-region targets with very low relative error (<0.28%).
- Demonstrated high range resolutions up to 0.9mm.
- Exhibited excellent anti-noise performance through parameter optimization.
Conclusions:
- The developed scheme enables precise ranging for multi-region targets.
- Optimized parameters enhance ranging accuracy and noise resistance.
- The method shows promise for quality detection of multi-region surfaces.
