Kategoriak: All - digital - noise - information - redundancy

arabera Charlotte Wright 13 years ago

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Intoduction to Digital Communication

Digital communication involves the transmission of information through various means, incorporating elements like redundancy and noise. Redundancy refers to the repetition of information to ensure clarity, such as asking for something to be repeated.

Intoduction to Digital Communication

Intoduction to Digital Communication

Paradigm

A set of possible meanings for the same thing, like a nod meaning yes.

Rules

Constraints on a process, like control. You automatically are aware that on a traffic light red means stop and green means go, but are just being told with by a coloured light.

- This creates a structure

Structure

The way you remember a certain procedure, like the way numbers are structured into certain ways, we notice that they are possibly a phone number, eg. 077..ect.

Data

A difference you may notice in anything.

Binary signal

e.g. On/Off

True/False

Percieved among signals
Percieved difference
Signal Percieved in a medium

Noise (unwanted data)

Psycological Noise

Can be offensive to someone without meaning to be.

E.g. Some people may not like the colour orange, others may do.

Semantic Noise

Means something else to someone else, eg. Nodding your head in some countries means yes, others it can mean no.

Audio Noise

Unwanted sound

Visual Noise

Unwanted images

Sender

Someone sending data

Syntagm

Different elements you can put things in with the same basic structure.

- The same meaning into different elements.

Pattern

Redundancy

Repetition of infomation

Like insuring what you're getting

Eg.'Can you repeat that?'

'This is the way it is, Yes.'

Message

Thing we know and have already been told, used to be infomation but due to being told the infomation more than once, it is now a message because we already knew this.

Infomation

Defined by surprise, things we didn't know and are being told for the first time

Reciever

Someone recieving data