15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| |ZNS| Polar |NHD |ASZ|16B|CMS|R2 | |3x3|CCB| |Lsr|Dsr|Rnv| Input 2
|--|---|-------|----|---|---|---|---|---|---|---|---|---|---|---|-
Each single-bit field selects whether the given processing or threshold option is enabled (1)
or disabled (0).
Table 62 SOPRM Threshold Options
Threshold
Option
Description
ZNS
If Rnv is 0 (no range normalization), you can set ZNS to have the dBZ and dBT outputs to
be power relative to noise (P/N) rather than SNR ((PN)/N).
This format is useful when collecting data that are near or below noise because there is no
discontinuity at the noise level. ZNS has no eect when Rnv is set.
Polar
Configures transmit polarization and Zdr processing:
00
Fixed polarization, Horizontal
01
Fixed polarization, Vertical
10
Alternating polarization pulse-to-pulse
11
Dual simultaneous transmission
NHD
Disables the inclusion of header words in the processed data that are output by the PROC
command.
See also 8.23 Configure Ray Header Words (CFGHDR) (page 308).
ASZ
The Any Spectrum Size bit requests that DFT processing algorithms, clutter filters,
spectral output, and so on.
All operate on spectra whose size exactly matches the number of available pulses (rather
than rounding the spectrum size down to the next lower power-of-two).
16B
Configures for 16-bit (rather than 8-bit) data output from the PROC command.
This bit aects the single-parameter versions of Reflectivity, Velocity, Width, and Zdr
data.
The PROC command's archive format always holds 8-bit data, regardless of the 16B
setting. This gives the option of extracting 8-bit and 16-bit data simultaneously from each
ray.
CMS
Enables clutter microsuppression, in which individual range bins are rejected (based on
excessive clutter) prior to being averaged together in range.
R2
Use 3 lag (R0/R1/R2) algorithms for width, signal power, and clutter correction.
RVP900 User Guide M211322EN-J
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