electronic warfare (EW)

Question 1

electronic warfare (EW)

Answer 1

impede the oppositions communication. Degrade the opposition’s decision making capability, force employment. Gain superior situational awareness. protect friendly use of the EM spectrum

Question 2

USS STARK (FFG 31)

Answer 2

struck by Iraqi missile 1987 1st warning of missile attack was topside lookouts, no defensive measures. 37 sailors killed 21 wounded

Question 3

importance of EW

Answer 3

increased reliance on radar.
over the horizon (OTH) targeting
Increased use of communications.
Tactical Data systems (TDS)
Increased speed of missiles & weapons systems.
high-speed detection and tracking
active/passive homing long-range missiles give little warning

Question 4

Electronic support (ES)

Answer 4

Actions taken against opposition electronic emission. Search, intercept, identify, locate, exploit

Question 5

effective ES

Answer 5

threat detection, identification, warning, avoidance, targeting, determine intent

Question 6

electronic attack (EA)

Answer 6

offensive use, Jamming, denial jamming, deception jamming. expendable decoys, anti-radiation weapons, radar abosrbent material (RAM)

Question 7

denial jamming

Answer 7

jammers raise noise signal to mask signals the receiver is trying to detect. overloads opposition’s radar receiver. Masks real targets

Question 8

deception jamming

Answer 8

misleads opposition radar by providing false target information. signal is received, delayed, amplified, modulated and transmitted back to the opposition radar

Question 9

Expendable decoys (chaff)

Answer 9

forms a radar-reflective cloud, slow-moving relative to launch platform, prone to rejection by velocity, discriminators

Question 10

killer tomato

Answer 10

rapid inflation, deployed over the side, attract/distracts incoming missiles. creates maximized radar relection

Question 11

radar absorbent material

Answer 11

radar is absorbed and converted to heat, minimizing reflection back to opponent’s antenna

Question 12

AGM-88 HARM

Answer 12

high-speed anti radiation missile, passive homing guidance tracks electromagnetic radiation. fragmentation warhead contains: tungsten steel cubes to shred opposition antenna and wave guides

Question 13

electronic protection (EP)

Answer 13

protects friendly combat capability from opposition employment of EW. Radar design more complex harder to jam, anti-jamming signal processing techniques, emissions control (EMCON)

Question 14

Power

Answer 14

stronger noise signal will “win” ground units or surface ships have advantage over aircraft

Question 15

scan pattern

Answer 15

active tracking phased-array radar is EA resistant

Question 16

Frequency

Answer 16

random automatic frequency “hops” make deception and jamming difficult

Question 17

scan pattern

Answer 17

SPY

Question 18

Emission control (EMCON)

Answer 18

ALPHA (most restrictive)
BRAVO
CHARLIE
DELTA(least restrictive)

Question 19

with radio absorbent material what percentage of the material is radio frequency material?

Answer 19

95%

Question 20

In electronic support, actions taken against opposition electronic emission occur in what 5 aspects?

Answer 20

search, intercept, identify, locate, exploit