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← ScienceWhich effect compromises image resolution if coherence decreases in synthetic aperture radar (SAR)?
A)Increased side lobe interference✓
B)Reduced Doppler frequency shift
C)Elevated thermal background noise
D)Spurious polarization state mixing
💡 Explanation
Increased side lobe interference results because decreased coherence reduces constructive interference of the radar signal, which blurs the image; therefore, the resolution drops, rather than Doppler shifts changing or noise increases, which have different causes.
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