Network Delay-Weighted Least Squares Localization Algorithm with Taylor Expansion based on Acoustic Emission

Wang Ying,Ma Yue,Bai Fuzhong,Liu Pengcheng

Table 3 Comparison results of weighted and unweighted algorithms

Positioning method Lead-break point Calculated point Absolute error Relative error Weighted positioning algorithm (0,60) (15.1,86.2) (15.1,26.2) 6.1% (0,40) (9.8,50.5) (9.8,10.5) 2.9% (0,20) (10.8,27.7) (10.8,7.7) 2.7% (0,0) (12.4,12.2) (12.4,12.2) 3.5% (20,0) (33.9,15.1) (13.9,15.1) 4.1% (40,0) (33.7,10.9) (6.3,10.9) 2.6% (60,0) (76.1,14.9) (16.1,14.9) 4.4% (60,20) (101.8,43.3) (41.8,23.3) 9.6% Positioning method Lead-break point Calculated point Absolute error Relative error Unweighted positioning algorithm (0,60) (18.1,88.6) (18.1,28.6) 6.8% (0,40) (10.5,57.9) (10.5,17.9) 4.2% (0,20) (11.9,30.9) (11.9,10.9) 3.2% (0,0) (12.5,12.5) (12.5,12.5) 3.5% (20,0) (37.4,18.6) (17.4,18.6) 5.1% (40,0) (63.2,13.1) (23.2,13.1) 5.3% (60,0) (79.6,18.5) (19.6,18.5) 5.4% (60,20) (112,53.5) (52,13.5) 10.7%