Doppler Weather Radar - METNET - India Meteorological Department

provided so that research customers can modify/replace existing SIGMET algorithms, or write
their own software from scratch using the RVP8 software structure as a foundation on which to
build.
The advantage of the open hardware and software PCI approach is reduced cost and the ability
for customers to maintain, upgrade and expand the processor in the future by purchasing
standard, low cost PC components from local sources.
A.2.3. RCP8 Group. The RCP8 Group provides position and velocity servo control for both the
AZ and the EL axes of the antenna, the status monitoring of the Transmitter /Receiver/Antenna
servo systems and the control functions such as Radiate On/Off and Servo On/Off. An Ethernet
interface can be connected virtually to any workstation or PC and is fully compatible with
SIGMET’s RVP8 signal processor and IRIS software system.
A.2.4. IRIS Group. The IRIS Group is a set of advanced software products for use with either
Doppler or non-Doppler weather radar applications. IRIS was developed by SIGMET, Inc., to
provide virtually all of the features required for the operation of a radar network and distribution
of radar products, including:
• Local and remote radar control.
• Real time display for the local or networked workstations.
• PPI, RHI and interactive, manual scanning.
• Advanced radar signal processing and control features for data acquisition.
• Advanced radar product generation — CAPPI, PPI, RHI, vertically integrated, liquid, echo
tops, cross section, maximum reflectivity, wind shear, and rainfall accumulation with
full interpolation in polar coordinates.
• Generation of automatic warnings for sever weather events like Dust Storm, Thunder
Storm, Hail and Microburst etc.
• Forecaster features like loop, geographic cursor, storm tracking and forecasting, and
interactive cross section modes.
• Archiving and playback of products and raw data.
• Comprehensive alignment and calibration.
• Comprehensive diagnostic and system monitoring.
• Product generation from both real time and archived data.
IRIS Group has main three following configurations of the IRIS system are used in the WSR-
98D
IRIS/Radar Installed at the radar site on the RCP8 computer, the IRIS/Radar system runs the
radar and signal processing hardware and generates ingest files (input data) and raw data for
other IRIS sites. It can support either the basic or the full product set.
IRIS/Analysis Installed at a central office, the IRIS/Analysis system receives raw data products
from the radar site over the network or from an archive device, such as a tape or disk. It supports
the full product set. Remote control and monitoring are also supported.
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