Output Files

With option T specified, OAST will generate a file 'input'.rco containg the magnitude |R| and phase of the complex reflection coefficient . Assume you add option T to saffipr1.dat , and also add option p to select slowness sampling:

SAFARI FIPR case 1.
P Z T p
3
0 1500 0 0 0 1 0
0 1600 400 0.2 0.5 1.8 0
20 1800 600 0.1 0.2 2.0 0
50 50 1 1
0.1 4.0 200 0              # Slowness sampling 0.1 - 4 s/km
0 4 20 1                   # Slowness axes
0 15 12 5
0 2000 10 1000
-20 40 10 20

Then, after issuing the command

> oasr saffipr1

the file saffipr1.rco will be generated:

      50.000      50.000   1   1
       50.000   200  # Frequency, # of slownesses
       0.100000       0.339462     -15.996886
       0.119598       0.342714     -15.640528
       0.139196       0.346415     -15.196492
       0.158794       0.350498     -14.655071
       0.178392       0.354880     -14.006412
       0.197990       0.359469     -13.240785
       0.217588       0.364159     -12.349057
       0.237186       0.368833     -11.322515
       0.256784       0.373363     -10.153061
       0.276382       0.377615      -8.832868
       0.295980       0.381445      -7.354058
       0.315578       0.384707      -5.707997
       0.335176       0.387249      -3.883928
       0.354774       0.388919      -1.867177
        .              .              .
        .              .              .
        .              .              .

Note that the reflection coefficients are listed vs horizontal slowness in s/km, and phase angles are stated in degrees.

 Another output file input.trc will be generated, identical to the input.rco file, except for the reflection coefficients being listed vs grazing angle in degrees. The format of both these output files is compatible with the one required by OAST as input for options t and b . The file input.trc generated by the input file above is as follows

      50.000      50.000   1   2  # fr1, fr2, nf, slowns/angle(1/2)
       50.000   200               # Frequency, # of angles
      81.373070       0.339462     -15.996886
      79.665359       0.342714     -15.640528
      77.948311       0.346415     -15.196492
      76.220207       0.350498     -14.655071
      74.479210       0.354880     -14.006412
      72.723396       0.359469     -13.240785
      70.950676       0.364159     -12.349057
      69.158813       0.368833     -11.322515
      67.345337       0.373363     -10.153061
      65.507576       0.377615      -8.832868
      63.642544       0.381445      -7.354058
      61.746929       0.384707      -5.707997
      59.816971       0.387249      -3.883928
      57.848427       0.388919      -1.867177
        .              .              .
        .              .              .
        .              .              .

Note that the slowness/angle sampling is identified by the last number in the first line, with 1 indicating slowness sampling, and 2 indicating angle sampling.