Manual

June 2004 Isis® Sonar User's Manual, Volume 2 17
Channel 1 Sonar Parameters and Sampling Rate
0092 ch1_floatRawRange 4 FLOAT Higher resolution raw maximum
slant range in meters. Used in
DSP and Isis; not Q-MIPS.
0096 ch1_delayRange 4 FLOAT Channel delay in meters,
entered in Q-MIPS DIGITIZER
menu in seconds and converted
to meters. Not used in Isis.
0100 ch1_bandWidth 2 USHORTSonar channel bandwidth in kHz.
Not used in Isis. *
0102 ch1_sampleScheme 2 USHORT[1...5] For storage, digitized
samples are decimated to 1024
samples per channel per ping
using one of five methods
defined as 1: average, 2:
maximum, 3: minimum, 4: rms,
or 5: none (meaning the first
sample in the group to be
downsampled is taken). The
method is defined for each
channel in QMIPS.DAT. Another
parameter, screen downsample
(0: skip, 1: average, 2:
maximum, 3: minimum) is not
stored but is also defined in
QMIPS.DAT and may be
changed from the keyboard. Set
to 2 in Isis.
0104 ch1_rawRange 2 USHORTRaw maximum slant range in
meters, stored even if only
processed imagery is saved,
zero if channel is not present.
On any asynchronous channel,
this holds the async range.
0106 ch1_initialGain 1 BYTE Initial channel gain. †*
0107 reservedForFloatSa
mp
2 USHORTSample rate in Hz used in DSP
only.
0108 ch1_gain 1 BYTE Channel gain. †*
Appendix A: Q-MIPS File Format