Vaisala RVP900, User Manual

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More Information
‣
RVP900 Product Architecture (page 15)
‣
RVP902 Signal Processing Computer Specifications (page 334)
3.2.1 LAN Connection for Data Transfer or Parallel Processing
For external communication, RVP902 supports a standard 10/100/1000 BaseT Ethernet.
For most applications, the IRIS/Radar software is installed on the same PC. Moment results
(
Z , T , V , and W ) are transferred internally.
The Ethernet is used to transfer moment results ( Z , T , V , and W ) to third-party application
host computers such as a product generator.
RVP901 communicates over 100 Base T or Gigabit Etherent using UDP packets to send the
I
and
Q
values to RVP902 and can broadcast them - allowing for archiving or parallel
processing.
The digital
I and Q data produced by the IFDR is given to a PC server to perform the
processing using pulse pairs, Fourier transforms, or random phase techniques. Since the
IFDR is a networked device, the digital
I and Q data can be received by parallel signal
processors in real-time.
3.2.2 Open Hardware and Software Design
RVP is an open-architecture radar signal processor that uses Gigabit Ethernet to interface to
the IFDR, which samples the data.
RVP software runs under standard CentOS Linux, and is developed and maintained using
standard GNU tools (for example,
gcc
,
gdb
,
make
).
Using public APIs, researchers and OEM manufacturers can modify or replace existing
algorithms, or write their own software using the RVP900 software as a foundation.
Upgrades
To support software upgrades, RVP902 can flash RVP901 software.
The RDA version can be updated in the field with minimal risk. RVP902 software provides a
configuration interface.
For more information, see
IRIS and RDA Software Installation Guide .
3.2.3 RVP902 Socket Interface
RVP902 is configured to listen on a network port.
It is ready to interface to a host computer through the network using the
DspExport
program.
When IRIS/Radar is installed on the same RVP902 computer, it is pre-configured to
communicate with RVP902 processes through the native interface, bypassing the socket
interface.
Chapter 3 – Functional Description
37