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← ScienceWhich consequence results when coherence degrades in SAR imaging?
A)Speckle noise increases substantially✓
B)Spatial resolution sharpens notably
C)Doppler shift diminishes erratically
D)Transmitted power increases quadratically
💡 Explanation
Increased speckle noise occurs due to a loss of coherence in SAR because signals no longer interfere constructively and destructively in a predictable manner due to phase errors; therefore speckle increases, rather than sharper imagery or power changes, because signal predictability decreases.
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