研究目的
To demonstrate resolution characterization and beam analysis of a 340 GHz imaging radar using acoustic levitation for PSF characterization, overcoming limitations of conventional techniques.
研究成果
Acoustic levitation provides a high-fidelity method for PSF characterization of THz imaging radars, free from artifacts caused by secondary objects. The method shows excellent agreement with simulations and analytical models, offering a promising approach for radar system analysis.
研究不足
The technique's effectiveness may vary with the density and size of the levitated object. The acoustic field strength must be carefully controlled to minimize droplet deformation.
1:Experimental Design and Method Selection:
The study leverages acoustic levitation to position a point-like target (a water droplet) for PSF analysis, eliminating background object interference.
2:Sample Selection and Data Sources:
A small water droplet is acoustically levitated at the focus of a 340 GHz radar for imaging.
3:List of Experimental Equipment and Materials:
The setup includes a 340 GHz FMCW radar system, an acoustic levitator, and a water droplet.
4:Experimental Procedures and Operational Workflow:
The radar scans the levitated droplet within a FOV, and the reflected signal is processed to reconstruct the PSF pattern.
5:Data Analysis Methods:
The PSF patterns are analyzed for FWHM values and compared with PO simulations and analytical results.
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