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← ScienceWhich consequence during aerial lidar operation interferes with survey accuracy?
A)Atmospheric refractive index variation
B)Receiver amplifier thermal noise
C)GPS signal multipath interference✓
D)Laser pulse backscatter amplitude
💡 Explanation
GPS multipath interference introduces errors in the lidar's positional data because signals reflect off surfaces causing phase shifts; therefore, location accuracy decreases rather than effects related to the atmosphere or receiver noise, whose influence is different mechanisms.
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