Military Communication Systems

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Military Communication Systems
MCS.00
Maj JW Paul
Modified from a series of lectures by Dr Smain
Amari
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If you cant communicate, youre dead
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Todays Class

• Introduction
• Course Outline
• What is communication

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Introductions
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Course Outline
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What well cover...
modulation (AM/FM) spectrum (UHF/VHF/VLF) antenna
s digital vs analog noise compression cell
technology satellite technology EW
wireless
All in two hour blocks!!
Transmission lines High Speed techniques Fibre
Optics
wired
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Additional Facts

• 38 periods
• EO and PO
• formats TBD
• Guest Lecturers

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Communication Fundamentals
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OODA Loop
OBSERVE
ORIENT
DECIDE
DECIDE
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Definition

• What is communication?
• The exchange of information from one location to
  another

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Examples

• Telephone
• ADSL
• Letter
• Pony Express
• Gulf War I - helicopters
• Concepts
• Bandwidth
• Transmission Medium

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Simple Model
Channel
Receiver
Transmitter
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Transmitter

• The Transmitter is a collection of one or more
  electronic devices or circuits that converts the
  original source information to a signal that is
  more suitable for transmission over a given
  transmission medium.

Signal source
Source encoder
Encryptor
Modem
Channel encoder
Channel
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Transmission medium

• The channel may consists of
• copper wires (used for low frequency
  communication)
• coaxial cable (The bandwidth is much higher than
  that of twisted wire)
• fiber optic cable
• waveguide,
• air,
• or a combination of these.

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Expanded Receiver

• Receiver a collection of electronic devices and
  circuits that accepts the transmitted signals
  from the transmission medium and converts them to
  suitable forms.
• The receiver is simply a mirror image of the
  transmitter. It must undo each operation that
  was performed at the transmitter.

Channel
Source decoder
Decryptor
Modem (demodulator)
Channel decoder
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More Concepts

• Duplex
• 1/2 duplex
• asynchronus
• synchronus
• real-time

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Next Class

• Introduction to RF comms
• Questions?
• Jeff.Paul_at_rmc.ca