Vaisala RVP900, User Manual

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2. Product Overview
2.1 RVP900 Product Architecture
RVP900 provides a full suite of weather radar signal processing functionality to support
implementing a new weather radar or upgrading an existing system to the latest signal
processing technology.
The flexible architecture provides modular, highly configurable hardware, and an open
software design with public APIs that support developing applications and algorithms using
RVP900 as a foundation.
RVP900 includes the following hardware components.
RVP901 IF Digital Receiver
RVP901 IF Digital Receiver (IFDR) provides receive, transmit, and IF detector functionality in
a single, compact network-attached FGPA-based product able to perform tens of billions of
multiply accumulate cycles per second.
The IFDR samples up to 4 receive channels and 1 burst channel of IF inputs and computes
I
and
Q
data from them. The
I
and
Q
data is transmitted over Gigabit Ethernet to the RVP902
signal processor for further processing into moments.
The fully digital transmit functionality can produce outputs as simple as a COHO for a
Klytsron system or as complex as a pulse compression waveform for a solid state
transmitter.
RVP902 Signal Processor
RVP902 Signal Processor is server class computer with a dual processor multicore Xeon
processor running Linux.
RVP902, running RDA software, computes the radar data moments (
Z
,
T
,
V
,
W
) from the
I
and
Q
data provided by the IFDR. The moments can be distributed internally on RVP902 or
externally to other computers running IRIS or third party software.
DAFC Digital Automatic Frequency Control Unit
RVP901 and RVP902 use comprehensive, configurable I/O interfaces to provide DAFC
functionality in a magnetron system, generate triggers, monitor status, and control the radar.
Much of this can be done through the RVP901 IFDR in combination with RVP902 and RCP8.
See
Radar Control Processor RCP8 User Guide .
More Information
‣
RVP901 IF Digital Receiver (page 21)
‣
RVP902 Signal Processing Computer (page 36)
‣
Digital AFC (DAFC) (page 50)
Chapter 2 – Product Overview
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