W Band Dicke-Radiometer For Imaging
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In this paper, a novel model is presented for Passive Millimeter Wave Imaging (PMMWI) in the near diffraction limited range. A compact W band super-heterodyne Dicke-radiometer is designed based on the research of the model. A super-resolution algorithm is adopted in order to solve the inherent problem of poor resolution imaging, which is caused by limited aperture dimensions and the consequent diffraction limit. Theoretical researches indicate that the super-resolution performance and spatial resolution are enhanced by this model and algorithm in the near diffraction limited range.
KeywordsPMMWI Dicke-Radiometer Sensitivity Super-resolution
This work is supported by the State Key Program of National Natural Science Foundation of China (grant NO. 60632020) and supported by the National Natural Science Foundation of China (NO. 60776823).
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