[Retracted] Research on Microseismic Source Location Method Based on Waveform Characteristics Monitored by Nanomaterial Sensor under the Background of Metal Oxide Polluted Environment

Table 1

Target localization results when the sensor distance is 1 m.

	TDOA-based positioning method				EMD-based delay estimation
Settings	1	3	6	9	1	3	6	9
Measurements	1.43	3.35	6.57	9.82	1.38	3.27	6.46	9.71
Error	0.43	0.35	0.57	0.82	0.38	0.27	0.46	0.71
Positioning accuracy	86.35%				91.44%