INSTITUTE FOR MARITIME TECHNOLOGY - RADAR AND EW PERSPECTIVES.

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.