3 Electronic Attack Flashcards
Disruptive EA: How does Noise Jamming work?
We can increase the ambient noise in the receiver bandwidth so that the SNR becomes too low to allow detection.
Active vs Passive EA
Active: Emission of energy
Passive: No emission of energy
What is Disruptive EA
Increasing ambient noise to blind enemy radar
What are two requirements for joise jamming to work?
Directed at the enemy receiver’s antenna
Cover the enemy receiver frequency bandwidth
What is Burnthrough Range?
Range where radar echo becomes visible over the Jamming.
Below the Burnthrough Range, the (enemy) radar echo is visible.
After the Burnthrough range, the jamming signal is stronger than the radar return.
What are the components of the Jamming Equation?
Signal Strength S
Jammer Strength J (note that it is only one way propagation)
Signal to Jamming Ratio
Spot Jamming
Barrage Jamming
Swept Spot Jamming
What is the tradeoff relevant to Jamming?
Power vs. Bandwidth
You need to spread your power accross the bandwidth to be effective over that frequency range.
Jamming Tactics: Self-Screening
A single aircraft must both jam and attack. Power must be distributed between the two.
Jamming Techniques: Escort
A more specialized aircraft may be used which is equipped specifically for jamming. More power can be used for jamming.
The Jammer is with the group for a balance between Stand-ff and Forward Deployed.
Jamming Tactics: Stand-Off
Jammer is behind the attack aircraft to remain safe. But it has less jamming signal strength.
Jamming TacticsL Forward Deployed
The Jammer aircraft is forward to increase the jamming power. But the aircraft is more vulnerable.
What is Deceptive EA? What are 3 methods?
Multiple Target Generation
Range Deception
Angle Deception