Why Synthetic Aperture Radar Penetrates Cloud Cover While Optical Sensors Cannot
为什么合成孔径雷达能穿透云层而光学传感器不能
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Optical sensors rely on reflected visible and near-infrared photons, which clouds scatter isotropically and absorb strongly.
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Synthetic aperture radar (SAR) uses microwave wavelengths (1–100 cm) that interact weakly with cloud droplets due to Rayleigh scattering criteria.
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