Spotlight SAR Sensor Model Supporting Precise ...

Eq. 6 Where : one-way 3dB angular beam width. D: antenna size in the cross-range direction (: transmitted wavelength. Ka: excess bandwidth factor due to antenna weighting (Ka=0.886 for uniform illumination) In a SAR application the antenna beamwidth and phase must be considered over a two-way path so the net two-way -3dB beamwidth is given approximately by . Eq. 7 Where : two-way 3dB angular ... ................
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