Vaisala RVP10, Hardware Quickmanual

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Algorithm Description
Processing options • Azimuth averaging: 2 ... 1024 pulses
• Corrections for gaseous attenuation and1/R2
• Dual-polarization: Alternating, Simultaneous, H-only, V-only
• Clutter filters: Fixed/Adaptive GMAP in frequency domain, or IIR
time domain
• High sensitivity Rhv STAR mode processing: >3dB improvement in
detectability
• Pulse integration up to1024
• Range de-aliasing: random phase
• Scan angle synchronization for data acquisition
• Up to 4 pulse widths
• Velocity de-aliasing: dual PRF velocity unfolding at 2:3, 3:4, and 4:5
for 2X, 3X, or 4X velocity unfoldings
Data outputs (8 and 16 bit)
Zh
,
Zv
,
Zhv
,
V
,
W
,
SQI
,
ZDR
,
LDR
,
RHOHV
,
PHIDP
, and
KDP
Optional data outputs
HCLASS
,
I
/
Q
Data quality thresholds • Signal-to-noise ratio (SNR)—Used to reject bins having weak
signals; typically applied to dBZ
• Signal quality index (SQI)—Used to reject bins having incoherent
signals; typically applied to mean velocity and width
• Clutter-to-signal ratio (CSR)—Used to reject range bins having very
strong clutter; typically applied to mean velocity, width, and dBZ
• Speckle Filter—Removes single-bin targets such as aircraft or noise
and fills isolated missing pixels
4.2 RVP10 Input and output summary
Table 12 I/O summary
Function Description
AZ
/
EL
angle input options • Serial
AZ
/
EL
angle tag input using standard Vaisala RCP format
• 16-bit each parallel TTL binary angles through the I/O-62 card
• Synchro angle inputs through the I/O-62 card
• RCP network antenna packet protocol
Ethernet I/O from host
computer Data output of calibrated dBZ , V , and W during normal operation.
Full
I
/
Q
time series recording with a separate tsarchive utility, or
through a custom application using a public API. Signal processor
configuration and verification read-back is performed through the
Ethernet interface.
Input from IFDR • 32-bit floating point I / Q values
• Optional dual-channel I / Q samples (for example, for polarization
systems or dual-frequency systems)
RVP10 Hardware Quick Guide M212758EN-A
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