$\theta$

0.3

0.5

0.7

BQR-AL

0.67640

1.58100

2.44680

BQR-L

0.65308

1.55980

2.41390

QR-SCAD

0.72930

1.57730

2.43000

QR-L

0.69427

1.57320

2.43920

QR

0.72090

1.59810

2.48700