User manual

Code: ENIGMA III User Manual
Edition: 1 Revision: 4
Date: 19/12/2008
Page: 67/97
6.22.1 thresholdFlagsTable
Format of the argument: "word0 word1 ... word15".
Type: Every word is a 16 bit unsigned decimal.
Default: 65535 in every word (means 'All pass')
Remark: Use the EnigmaThresholdFlagCalculator tool to obtain the bit values
6.22.2 Speckle removal
Speckle filter removes isolated bins in the ray. Filters are enabled separetaly for reflectivety Z and
velocity V by the following parameters:
6.22.2.1 SpeckleRemoverZ
Enable/disable speckle remover for Z/UZ data
Type: boolean
Default: false
6.22.2.2 SpeckleRemoverV
Enable/disable speckle remover for velocity data.
Type: boolean
Default: false
7 Acquisition
The following moments can be extracted from the radar data.
7.1 Spectrum Width.
The spectrum width is normalized to the Nyquist interval [-1;1] and calculated by formula:
W =

2
3
ln
∣
R
1
∣
∣
R
2
∣


W is multiplied by the unfolding factor on the low PRF in dual PRF mode .
Unfolding factor =PRF
Low
/ PRF
High
.
The unfolding factor is calculated from the PRF table. It is set by 'PRFTable' parameter.
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