User manual

Code: ENIGMA III User Manual
Edition: 1 Revision: 4
Date: 19/12/2008
Page: 55/97
attenuation - Stopband attenuation in dB for Remez algorithm (used by Frog only)
weight - Weighting for Remez algorithm (used by Frog only)
decimation - Decimation factor (see remark)
dataRate - obsolete (set to 0)
scalingShiftFactor - obsolete (set to 1)
Remark: The values used by the Frog software only can be set to fixed values.
The number of coefficients must always be a multiple of the decimation factor. The
decimation factor must be in the range [3...32] and the factor for the decimation must be
in the range [1...20]
The filter coefficients will be uploaded to the signal processor by the burst configuration utility in
FrogRT
6.6.5 Burst sampling
Burst sampling is controlled by the following parameters:
6.6.5.1 BurstTiming0 -BurstTiming3
Burst sample timing
Format: BurstTimingX <burstCenterOffset> <afcSampleSize>
burstCenterOffset - integer, default 0 (Sample count at sampling frequency)
afcSampleSize - unsigned, default 0 (Sample count at sampling frequency)
These parameters are best configured with the graphical utility (Burst configuration) in FrogRT
6.6.5.2 RangeAdjust0 – RangeAdjust3
Delay for sample start (Range step increments)
Type: unsigned
Default: 0
Unit: Range step increments
Remark: The timing for range=0 is configured with the BurstTimingX. The RangeAdjust parameter are
intended for lowpass receiver with fixed range gating. These parameters should be set to 0.
GAMIC Proprietary