Ref. [9] Present method

${\epsilon }_1={10}^{-j}$

N = 32 $t=0.1$

N = 64 $t=0.1/4$

N = 128 $t=0.1/4^2$

N = 256 $t=0.1/4^3$

N = 32 $t=0.1$

N = 64

$t=0.1/4$

N = 128 $t=0.1/4^2$

N = 256 $t=0.1/4^3$

j = 0

8.01E−02

2.90E−02

9.95E−03

2.75E−03

3.03E−03

1.08E−03

3.27E−04

2.08E−06

j = 1

1.70E−01

6.88E−02

1.99E−02

5.19E−03

3.17E−03

1.27E−03

3.62E−04

2.16E−06

j = 2

2.44E−01

9.34E−02

2.65E−02

6.86E−03

3.58E−03

2.45E−03

3.76E−04

2.53E−06

j = 3

2.57E−01

9.77E−02

2.77E−02

7.16E−03

4.02E−03

2.87E−03

4.05E−04

3.21E−06

j = 4

2.59E−01

9.81E−02

2.78E−02

7.17E−03

4.55E−03

2.99E−03

4.16E−04

3.45E−06

j = 5

2.59E−01

9.81E−02

2.78E−02

7.17E−03

4.55E−03

2.99E−03

4.16E−04

3.45E−06

j = 6

2.59E−01

9.81E−02

2.78E−02

7.17E−03

4.55E−03

2.99E−03

4.16E−04

3.45E−06