Doppler Weather Radar - METNET - India Meteorological Department

B.1.7. Displays
All displays are flicker free, memory backed, fast refresh type for viewing in normal ambient
light and
having the following features:
(i)
(ii)
(iii)
Provision of electronic cursor synchronizing with antenna position for PPI/RHI
presentation in real time display monitor.
Provision of soft overlay in GIS format with 1 km resolution with user selectable colors
for coastline, State/ district boundary, rivers, town/ city names and latitude/ longitude grids
in all displays.
Provision of markers for range and height with user selectable values.
1.7.1. General features
a. Size 29” - 1 No
36’ × 24’ Plasma - 1 No
53cm (21’’) or larger - 5 Nos.
b. Type super VGA LCD color monitor
c. Display resolution 1600 × 1280 or better
d. Color levels selectable from palettes of minimum 256 colors
B.1.8. RVP8, the best and latest Radar Signal Processor
a. Processor type: based on pulse pair algorithm.
b. Averaging: compatible with accuracy and scan rate requirements and optionally selectable
from 4 to 256 pulses as per operational requirement.
c. Clutter rejection : compatible with clutter rejection requirements of the system as per
accuracy limits, standard IIR (Infinite Impulse Response) filtering (minimum 5 poles)
with 30 dB and 50 dB (nominal values) rejection and selectable width with facilities
for site optimization.
d. Output: 12 bit.
e. Design: Provision shall exist for user programming with easy to use assembly language
and standard C & C++ language.
f. Data quality: The processor to have thresholds values on clutter and signal quality index
etc to discard questionable data.
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