Triton Isis Instrukcja Użytkownika Pobierz pdf (Strona 34)

June 2004 Isis® Sonar User's Manual, Volume 2

B.2 GAC File Format

Q-MIPS or Isis can create Grazing Angle Compensation files, either theoretically

or empirically. The GAC files are ASCII and consist of paired multiplicative

corrections for each degree of grazing angle from 0 (far range) to 45. A sample

GAC file (

SM28.GAC) is shown in Figure B-2.

/* Grazing Angle Corrections */

46 /* number of angle bins */

01.858697 1.253826 /* grazing angle, port, starboard

corrections */

11.809185 1.233621

21.759672 1.213416

31.710160 1.193211

41.660647 1.173006

...

441.000000 1.000000

451.000000 1.000000 /* grazing angle, port, starboard

corrections */

Figure B-2. Sample GAC beam pattern file

Appendix B: Isis BAC and GAC File Formats

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 167 168

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