Data link, ESM and functional analysis Flashcards
(19 cards)
Tactical data link (TDL)
Structured, standardised and interoperable communication system.
What is JTIDS
Joint tactical information distribution system
What is MIDS
Multi function information distribution system
Link 16 characteristics
ECM resistant
near real time (sub 20 seconds)
Nodeless
Unambiguous
Secure
What bands does Link 16 operate on
L band
D band
What is the frequency range of link 16 including exclusions
969Mhz - 1206Mhz
Excluding 1030Mhz and 1090Mhz
What is the limitation of link 16 (for FDN purposes)
Line of sight
What operator filters does link 16 have?
Affiliation
Domain
Range
What does TDMA stand for?
Time division multiple access
What is the purpose of ESM?
Intercept , identify and locate sources of unintentional or intentional EM energy.
What is ESM advantage?
Detecting a radar target/threat outside of its MUR
How do you calculate bearing using ESM
Time
Amplitude
Phase
What is importsnt about ESM aerials for DOA?
They must be adjacent aerials
What are the ESM functions?
Search
Intercept
Measure
Fix(locate)
Identify
Display
What is affected by an increase in frequency?
Antenna size decreases
Range decreases
Target discrimination improves
What is affected by an increase of pulse width?
Power increases
Range increases
MDR increases
Range discrimination worsens
What is affected by an increase in PRF?
Data rate increases
MUR decreases
It is connected to scan rate/type
Scan types
Circular
Sector
Raster (AI)
Complex (AI)
What is ARP?
Aerial rotational period
