研究目的
To verify the fundamentals of mirrored aperture synthesis (MAS) and demonstrate its capability to provide high spatial resolution for atmospheric remote sensing with fewer antennas compared to conventional aperture synthesis radiometers.
研究成果
The indoor experiments for one-dimensional MAS yielded results consistent with theoretical expectations, verifying the fundamentals of MAS. MAS demonstrated superior spatial resolution compared to conventional aperture synthesis, capable of resolving two point sources with closer spacing. Future work includes more detailed data processing and additional indoor and outdoor experiments.
研究不足
The study is limited to indoor experiments with a prototype. Outdoor experiments and further data processing are planned but not yet conducted. The impact of polarization on cross-correlation is noted but requires further investigation.
1：Experimental Design and Method Selection:
The study involves the development of a prototype working at V band to conduct indoor experiments for one-dimensional MAS, including fringe pattern and imaging experiments.
2：Sample Selection and Data Sources:
Two noise sources are used in the imaging experiment to compare spatial resolution.
3：List of Experimental Equipment and Materials:
A 24-elements array prototype working at V band, with antennas arranged in different shapes and equipped with reflectors for MAS.
4：Experimental Procedures and Operational Workflow:
The prototype is used to collect signals from point sources, which are then processed to generate correlation outputs and cosine visibility samples for brightness temperature reconstruction.
5：Data Analysis Methods:
Fourier transform is applied to fringe pattern measurements to analyze spatial frequencies, and imaging results are compared to evaluate spatial resolution.
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