STANDARD BRIEFING
FOR
VISITORS
INDRA-II (PC)
POINTS TO BE COVERED
 SYSTEM CONFIGURATION
 NOVEL FEATURES
 TECHNICAL PARAMETERS
 SUBSYSTEMS
 ECCM FEATURES
 LIMITATIONS
INTRODUCTION
INDRA-II (PC) Stands for Indian Doppler Radar Mark II with Pulse
Compression
It is Highly Mobile Radar, designed for detection of low level targets
It incorporates State Of Art Technology
It is 2D Radar with maximum detection range of 90 km and max
height coverage of 3 km
SYSTEM CONFIGURATION
The System Consists Of 4 Vehicles
One vehicle houses AE assembly with one DG set, No two
vehicles carry shelters, one for Tx / Rx & Other for Control &
Display cabin. One of the vehicles carry DG sets and a spare
shelter.
The system has three DG sets,6 Air Conditioners and two LUP322 RT sets with a RT recorder
NOVEL FEATURES
The system uses Doppler technique which is used in advanced
version of radars for clutter elimination.
It has integrated IFF system for
detected targets immediately.
Electronic Identification of
The system has Built in Test facility which maintains on line
check of system serviceability
There are two color PPI display consoles known as Multi
Function Consoles, which provide Synthetic display of both
radar echoes and associated data
The Radar Data Processor (RDP) generates synthetic display
only for moving targets it is one of the advanced technology
used for the purpose.
The video mapper facility enables the user to feed and store
area map with different symbols and features . A total of 10 such
maps can be fed and stored. The operator has the choice to
select one or more maps at a time as per requirement
There is a facility to select range scale of 90km, 50km, 25km &
12.5km as per the operator’s requirement.
BRIEF TECHNICAL SPECIFICATIONS
ANTENNA
• TYPE
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: 3 SECTION , DOUBLE CURVATURE MESH
TYPE REFLECTOR
COVERAGE
: NEAR COSEC2 IN ELEVATION
BEAM WIDTH : 3 DEGREES
SIDE LOBES
: BETTER THAN 23 Db
DUAL BEAM
: LOW BEAM FOR TRANSMIT AND RECEIVE
HIGH BEAM FOR RECEIVE ONLY
POLARIZATION : HORIZONTAL – PRIMARY VERTICAL - IFF
SCAN RATE
: 12.75 RPM
MAST
: HYDRAULICALLY ELEVATABLE BY
VEHICLE PTO
TRANSMITTER
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RF FREQUENCY
BW
RANGE RESOLUTION
RANGE ACCURACY
AZIMUTH RESOLUTION
AZIMUTH ACCURACY
SCAN RATE
TRACKING
IFF
• NETWORK CAPABILITY
: L-BAND(12.5 – 13.5 GHZ)
: 100MHz
: 150 M
: 50 MT RMS
: 5°
: 0.5° RMS
: 12.75 RPM
: 200 TARGETS
: INTEGRATED MK-X
UPGRADABLE TO Mk XI
: TRANSMISSION OF TARGET
DATA
DETECTION RANGES ON IDEAL SITE
AC Height
30m
60m
100m
150m
600m
900m
1800m
2100m
3000m
Detection Range
31Km
37Km
41Km
44Km
75Km
90Km
90Km
90Km
90Km
SUBSYSTEMS
USER FRIENDLY FACILITIES
FEATURES OF RDP
Auto Initiation of tracks.
Maintenance/Auto drop of tracks
Association of Primary and Secondary tracks
Interface with terminal for operator commands
Data formatting and forward for remoteing on RS-422 for
networking
ON TOTE
Time setting
Hooking of tracks (4+1) for scan to scan updation of data
Display of operating modes
Four messages can be displayed
Position of track ball
Additional
Two type maps can be
ECCM FEATURES
• FX CH REMOTELY SELECTABLE
• FX AGILITY
– FROM PULSE TO PULSE
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– CPI TO CPI WITH MTD
– SCAN TO SCAN WITH MTD
HIGH POWER TX FOR HIGH BURN THROUGH
PRF STAGGER FACILITY WITH SELECTION
– CPI TO CPI
– SCAN TO SCAN
LOW ANTENNA SIDE LOBES
JAMMER STROBE PRESENTATION
SECTOR BLANKING OF TX & RX
MINIMUM OF TWO PRFS ARE TRANSMITTED IN EACH BEAM
DIGITAL SIGNAL PROCESSING
EFFICIENT CFAR
LIMITATIONS
HT NOT AVAILABLE
LIMITED HT COVERAGE (ONLY 3KM)
POOR AZ RESOLUTION
SYNTHETIC TRACK DROPS DURING HARD TURNS
PERFORMANCE IS LIKELY TO BE AFFECTED IN CASE HIGH
POWER BRUTE JAMMING
POOR SYSTEM DOCUMENTATION
VERTICAL MOUNTED ACS
PROXIMITY OF TX SHELTER