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

Table 3

Target localization results when the sensor distance is 5 m.

	TDOA-based positioning method				EMD-based delay estimation
Settings	1	3	6	9	1	3	6	9
Measurements	1.42	3.33	6.54	9.78	1.37	3.24	6.43	9.68
Error	0.42	0.33	0.54	0.78	0.37	0.24	0.43	0.68
Positioning accuracy	86.94%				92.07%