institute for maritime technology - radar and ew perspectives
TRANSCRIPT
INSTITUTE FOR MARITIME TECHNOLOGY-
RADAR AND EW PERSPECTIVES
IMT RADAR AND EW PERSPECTIVE
• IMT PROVIDES SCIENTIFIC AND TECHNOLOGICAL SUPPORT TO THE SANDF, IN PARTICULAR THE SA NAVY, IN THE MARITIME DOMAIN.
• THIS SUPPORT INCLUDES:– TEST AND EVALUATION– MEASUREMENT AND ACCEPTANCE– SIMULATION AND MODELLING– RESEARCH AND DEVELOPMENT– SPECIALIST TRAINING
TEST AND EVALUATION
• IMT HAS SEVERAL FACILITIES AND A RANGE OF EQUIPMENT TO SUPPORT VARIOUS TYPES OF TEST AND EVALUATION IN A REALISTIC MARITIME ENVIRONMENT.
• TEST EQUIPMENT/SYSTEMS INCLUDE:– AN X-BAND CONICAL SCAN FIRE CONTROL RADAR– AN X-BAND COMMERCIAL NAVIGATION RADAR– SEVERAL EW TRANSMITTERS AND RECIEIVERS– EXTENSIVE DATA CAPURE FACILITIES– PRECISION GPS POSITION MEASUREMENT SYSTEM– COMMUNICATIONS SUPPORT FOR TRIALS
IMT RADAR AND COMMUNICATIONS FACILITIES
IMT Radar/NEMAS Facility
IMT Comms T&E Facility
AN EXAMPLE OF CAPTURED O,T&E DATA ON A DECOY DEMONSTRATING RANGE GATE PULL-IN
SUPPORT WITH SEA ACCEPTANCE TRIALS
F145, F147 & F148:Exocet Firings
SAS Spioenkop:SKUA Flight & SAM
Firings
SIGNATURE MEASUREMENT ANDEQUIPMENT PERFORMANCE MEASUREMENT
SIGNATURE MEASUREMENT AND EQUIPMENT ACCEPTANCE
• IMT PROVIDES THE SA NAVY WITH EXTENSIVE SIGNATURE MEASUREMENT AND MANAGEMENT SERVICES, AS WELL AS ASSISTANCE WITH EQUIPMENT ACCEPTANCE MEASUREMENTS.
• THE FOLLOWING SIGNATURES ARE MEASURED:– RADAR CROSS SECTION (X-BAND LIMITED RESOLUTION)– IR AND OPTICAL IN SEVERAL WAVELENGTHS– ACOUSTIC UNDERWATER– MAGNETIC– ELECTRIC FIELD (SUB-SURFACE)
• EMC MEASUREMENTS ON SHIP’S ARE ALSO CONDUCTED
Communications Polar Plot Measurements
SAN PC: Own Transmitter Beam Patterns
160 165 170 175 180 185 190 195 200
MRR Antenna Bearing (deg)
30
35
40
45
50
55
60
65
70
ES
M R
X (
dB
)
SAS Mendi 28/08/2006MRR/IFF Antenna Beam Patterns
IFF (P1) IFF (P2) MRR
ESM RX Scaling: 1dB = 25mV
MDI MRR&IFF Antenna Beam Patterns 28-08-2006 zoom.sc32
SHIP AIR DEFENCE MODELLING AND SIMULATION
THE FRIGATE’SRADAR AND EW SUB-SYSTEMPARAMETERSHAVE BEEN:
MEASURED,ANALYSED, PROGRAMMED+ PLACED UNDERCONFIGURATIONCONTROL
EW TACTICS AREBEING MODELLEDAGAINST THREATMISSILES
A SHIP AIR DEFENCE MODELLING (SADM) PACKAGE HAS BEEN PROCURED
RESEARCH AND DEVELOPMENT
• IMT ARE PRESENTLY MANAGING THE R&D EFFORT TO DEVELOP AN OFFBOARD ACTIVE DECOY. THIS INVOLVES CONTRACTING AND COOPERATING WITH VARIOUS COMPANIES AND INSTITUTIONS.
• MAIN ROLE PLAYERS ON THIS PROGRAM ARE:– SAAB AVITRONICS (RF PAYLOAD)– UNIVERSITY OF STELLENBOSCH (UAV CONTROL)– DPSS (SUPPORT IN TRIALS)
EXAMPLE OF HELICOPTER RCS WITH DECOY
-10
0
10
20
30
40
50
HELICOPTER RADAR CROSS SECTION
Turn 1 - OBJ OFF Turn 2 - OBJ OFF Turn 3 - OBJ OFF Turn 4 - OBJ OFF Turn 6 - OBJ ON Turn 7 - OBJ ON Turn 8 - OBJ ON
180
270 090
20 dB compensation for attenuation added
Helo RCS Polar.sc32
CONCLUSION
• IMT IS INVOLVED WITH A BROAD SPECTRUM OF RADAR AND ELECTRONIC WARFARE ACTIVITIES IN SUPPORT OF THE SA NAVY
• THE SPECIALISATION ALSO ALLOWS FOR ASSISTANCE TO THE SA NAVY WITH TECHNICAL TRAINING AND PROCUREMENT SUPPORT SERVICES.