Day 1: Detection & Analysis Flashcards
1
Q
What are the 3 Electronic Support (ES) mission areas?
A
- Monitor and detect
- Characterization
- Geolocation
2
Q
The difference in [redacted], due to the doppler effect, of signals traveling from the Primary and Adjacent satellites, which are in motion relative to the source and the GEO system
A
Frequency Difference of Arrival (FDOA)
3
Q
Difference in expansion and compression of a wave, relative to an observer
A
Doppler Effect
4
Q
The pathlength difference as the signal travels through the Primary and Adjacent satellites
A
Time Difference of Arrival (TDOA)
5
Q
Geolocation Requirements
A
- Geo antennas must be in the downlink footprint for primary and adjacent sats
- Knowledge of ephemeris
- Knowledge of signal parameters and frequency
- Both satellites must transpond both the target and reference signals
- Orbital separation requirements
- Reference emitters with precisely known location
6
Q
Geolocation Limitations
A
- Geo accuracy typically only good for tipping and cuing - likely not meet theater ISR
- Inaccuracy in GPS timing could impact results
- Geolocation not guaranteed
7
Q
Kratos mission areas
A
- Monitor/Detect
- Characterize
- Geolocate
