故障距离/km

接地电阻/Ω

SVM

波头时间差/μs

测距结果/km

测距误差/m

5

0

1

34.6

4.962

−38

50

1

34.6

4.962

−38

100

1

34.6

4.962

−38

200

1

34.5

4.947

−53

17

0

1

118.8

17.036

36

50

1

118.7

17.021

21

100

1

118.8

17.036

36

200

1

118.9

17.05

50

32

0

−1

70.2

31.934

−66

50

−1

70.2

31.934

−66

100

−1

70.1

31.948

−52

200

−1

70.3

31.919

−81