Table 2 Summary of frequency band signals of dynamic testing.

From: Research on the application of unmanned aerial vehicle aeromagnetic measurement based on rubidium optical pump magnetometer

Item (from top to bottom)

Peak-Peak (nT)

Frequency (Hz)

Signal source

IMF1

80

Approaching 0

Geomagnetic field

IMF2

0.8

25

UAV onboard digital noise

IMF3

1

50

Power line

IMF4

0.1

75

UAV current distortion harmonics

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