The following OASR input file dacol-rhs.dat produces the plot of the reflection coefficient shown in Fig. 3 of Ref. [16], and generates the file dacol-rhs.rhs with the boundary operators used subsequently by OASS to compute the scattering kernels.
dacol-rhs.dat:
Dacol and Berman. l= 7.07. N s 3 0 1500 0 0 0 1 0 0 1500 0 0 0 1 0 0 5000 2000 0.00 0.00 3.0 -1. 7.07 100 100 1 1 0.01 89.99 91 0 90 0 12 15 # Grazing angle axes 0. 10 12 1 # Loss axes
The input file used subsequently by OASS to generate the plots in Figs. 4 and 5 of Ref.[16], is
dacol-sca.dat:
Dacol and Berman. l= 7.07. P N I S # Plane geometry 100 3 0 1500 0 0 0 1 0 0 1500 0 0 0 1 0 0 5000 2000 0.00 0.00 3.0 -1. 7.07 2121.32 3 # cph=2121 ~ 45 deg. 2 # two depths -60 0 0 1 0 -10 0 0 1 0 1000 -1000 # pos+neg spectrum 1024 1 1024
The following OAST input file arsrp-mean.dat produces the contour plot of the mean field for the ARSRP scenari, shown in Fig.1 of Ref. [15]:
arsrp-mean.dat:
ARSRP J218. 6 deg. Basalt. # >>> Block I: Title N J C I T L P G s # >>> Block II: Options 250 250 1 0 # >>> Block III: Frequency sampling 16 # >>> Block IV: Environment 0 0 0 0 0 0 0 0 1544 -1524 0 0 1 0 175.0 1524. -1521 0 0 1 0 350 1521. -1510 0 0 1 0 650 1510 -1497 0 0 1 0 950 1497 -1495 0 0 1 0 1250 1495 -1497 0 0 1 0 1500 1497 -1498 0 0 1 0 1750 1498 -1500 0 0 1 0 2125 1500 -1504 0 0 1 0 2500 1504 -1510 0 0 1 0 2875 1510 -1516 0 0 1 0 3250 1516 -1523 0 0 1 0 3625 1523 -1530 0 0 1 0 3990 1530 0 0 0 1 0 # Note iso layer at rough bottom! 4000 5200 2500 .2 .5 2.4 -2 6 # 2 m RMS, L=6 m 175 10 3.66 6.0 1 4000 # Block V: Source array 1 4000 41 40 # Block VI:Receiver depths 1520 1545 # Block VII: Phase velocities -1 1 1 # Auto sampling 0 40 20 10 # Block VIII: Range axis 0 80 12 10 # Block IX: TL axes. 0 4000 12 500 # Block X: Depth axis 40 70 3 # Block XI: Contour intervals 1450 1550 15 25 # Block XII: Velocity axis 0 4000 15 1000 # Depth axis
To create the expectation of the scattered field intensity in Fig.2b of Ref.[15], use the following input file with OASS.
arsrp.dat:
ARSRP J218. 6 deg. Basalt. L=6m # Block I: Title P D G # Block II: Options 250 0 # Block III: Frequency 16 # Block IV: Environment 0 0 0 0 0 0 0 0 1544 -1524 0 0 1 0 175.0 1524. -1521 0 0 1 0 350 1521. -1510 0 0 1 0 650 1510 -1497 0 0 1 0 950 1497 -1495 0 0 1 0 1250 1495 -1497 0 0 1 0 1500 1497 -1498 0 0 1 0 1750 1498 -1500 0 0 1 0 2125 1500 -1504 0 0 1 0 2500 1504 -1510 0 0 1 0 2875 1510 -1516 0 0 1 0 3250 1516 -1523 0 0 1 0 3625 1523 -1530 0 0 1 0 3990 1530 0 0 0 1 0 # Note iso layer at rough bottom! 4000 5200 2500 .2 .5 2.4 -2 6 # 2 m RMS, L=6 m 1500 16 # Block V: dummy, Interface #. 21 # Block VI: 4 km long VLA 1 0 0 1 0 200 0 0 1 0 400 0 0 1 0 600 0 0 1 0 800 0 0 1 0 1000 0 0 1 0 1200 0 0 1 0 1400 0 0 1 0 1600 0 0 1 0 1800 0 0 1 0 2000 0 0 1 0 2200 0 0 1 0 2400 0 0 1 0 2600 0 0 1 0 2800 0 0 1 0 3000 0 0 1 0 3200 0 0 1 0 3400 0 0 1 0 3600 0 0 1 0 3800 0 0 1 0 3999 0 0 1 0 1450 -1450 # Block VII: CMIN, CMAX 2048 1 2048 # dummy 0 40 101 # Block VIII: 101 ranges, 0<r<40 km