Triton Isis User Manual
Page 19
June 2004 Isis® Sonar User's Manual, Volume 2
9
Table A-5. Q-MIPS header format description
Offset
Element Name
Bytes
Used
Value
Type
Remarks, Values,
Ranges, Units, Examples,
etc.
Format
and
Revision
0000
fileFormat
1
BYTE
50 for Q-MIPS files, 1 for
old S-MIPS files.
0001
systemType
1
BYTE
0 is Q-MIPS, 84 is
Q-MIPS/DSP, 202 is Isis.
0002
softwareRev
6
BYTE
Null-terminated string, e.g.
“6.61\0” or “Isis” for Isis-
recorded files.
0008
spare1
20
BYTE
Not currently used, all
zeros.
Digitizer Parameters
0028
sampleRate
2 USHORT [0...750], Q-MIPS digitizing
rate in ksamples/ second;
not valid for Isis — set to
20.
0030 numImageryChannels
2
USHORT [1...8], number of channels;
up to 4 Q-MIPS channels,
raw and/or processed; up
to 4 Isis channels.
0032
bitsPerPixel
2 USHORT [8 or 16], Q-MIPS analog
data are limited by 12-bit
resolution of A/D converter;
Isis analog and all digital
data can be 16-bit.
0034
pixelsPerChannelPerPing 2 USHORT Always 1024 for files
created by Q-MIPS;
[0...65535] for Isis
Appendix A: Q-MIPS File Format