Abreviations Flashcards by Callum Broster

Q

SOI

A

Signal of interest

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Q

SDF

A

Signal descriptor file

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Q

SCL

A

Signal collection list

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Q

NRZ - L

A

Non return to zero level

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Q

NRZ - M

and what is it also know as?

A

Non return to zero - mark

Frequency differential keying - mark

Delta 1

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Q

FDK - M

A

Frequency differential keying - mark

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Q

NRZ - S

And what is it also known as?

A

Non return to zero - space

Frequency differential keying - space

Non return to zero - inverted

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Q

FDK - S

A

Frequency differential keying - Space

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Q

NRZ - I

A

NRZ - inverted

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Q

EDAC

A

Error detection and correction

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Q

ARQ

A

Automatic repeat request

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Q

ACK

A

Acknowledgment

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Q

FEC

A

Forward error correction

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Q

ECC

A

Error correction codes

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Q

ALE

A

Automatic link establishment

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Q

BER

A

Bit error ratio/rate

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Q

MODEM

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A

Modulator - demodulator

Q

PSTN

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A

Public switched telephone network

Q

Wi-Max

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A

Worldwide interoperability for microwave access

Q

WAP

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A

Wireless application protocol

Q

GPRS

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A

General packet radio system

Q

UMTS

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A

Universal mobile telecommunications system

Q

HSPA

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A

High speed packet access

Q

ITU

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A

International telecommunications Union

ITU - R

International telecommunications Union- radio communications

ITU - T

International telecommunications Union- telephone circuits

ITU - D

International telecommunications Union- Development sector

LRS

Linear recursive system

OTHR

Over the horizon radar

PG

Generating Polynomial

CRC

Cyclic Redundancy Check

LPI

Low probability of intercept

AJ

Anti jam

DSSS

Direct sequence spread spectrum

PN

Pseudo noise

CDMA

Code division multiple access

LCM

Lowest common multiple

FH

frequency hopping

FHSS

Frequency hopping spread spectrum

TH

Time hopping

THSS

Time hopping spread spectrum