Ref. [8] Present method

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

N = 128 M = 2

N = 256 M = 8

N = 512 M = 32

N = 1024 M = 128

N = 128 M = 2

N = 256

M = 8

N = 512 M = 32

N = 1024 M = 128

j = 1

3.22E−02

1.71E−02

5.92E−03

1.63E−03

2.33E−04

1.27E−06

4.27E−08

3.73E−10