Detecting Electromagnetic Geographical Environment Changes Based on the Frequency-Intensity Curve

Table 3

Discrete Fréchet distances of ID 393 and its adjacent points.

Frequency (Hz)	Electric field		Magnetic field		High-frequency electric field
	0~100 K	100 K~200 K	0~100 K	100 K~200 K	200 K~10 M	10 M-2 G
ID 390	7.3011	4.6118	3.2395	0.0381	9.3435	5.1323
ID 391	8.5636	3.4322	2.3834	0.0311	7.0051	5.0479
ID 392	2.4011	5.5605	2.3831	0.0928	8.2681	4.5961
ID393	2.6312	4.3504	0.4783	0.0238	7.4138	5.5456