GLOSSARY

2-PMM

binary pulse position modulation

ADPCM

adaptive differential pulse code modulation

ADR/TDMA

AMSC

American Mobile Satellite Corporation

AOTS

Advanced Orbital Test Satellite

APC

antenna pointing controller

APD

Avalanche-Photo-Detector

APM

antenna positioning module

ARCHIMEDES

Advanced Research in Communications using Highly Inclined and Demonstrations using European Satellite orbits for Mobile applications and other Experiments

ARTEMIS

Advanced Relay and Technology Mission

ASIC

application specific integrated circuit

ASTP

Advanced Systems and Technology Program

ASU

acquisition and synchronization Unit

ATM

asynchronous transfer mode

ATR-O

ATR Optical and Radio Communications Laboratories

B-ISDN

broadband-ISDN

BER

bit error rate

BFN

beam forming network

BPSK

binary phase shift keying

BSS-S

broadcast satellite service-sound

CAD

computer aided design

CCD

charge-coupled device

CCDS

Center for Commercial Development of Space

CDMA

Code Division Multiple Access

CEPT

European Conference of Posts and Telecommunications

CMOS-SOS

complementary metal oxide semiconductor-silicon on sapphire

CNES

Centre National D'Etudes Spatiale

COFDM

coded octal frequency division multiplex

COM

communications

COMETS

Communications and Broadcasting Engineering Test Satellite

CPW

co-planar waveguide

CRL

Communication Research Laboratory

CTS

Communications Technology Satellite

DAB

digital audio broadcasting

DBS

direct broadcast satellite

DLR

German Aerospace Research Establishment

DRPP

Data Relay Preparatory Program

DRS

Data Relay Satellite

DRSS

data relay satellite service

DRTM

Data Relay and Technical Mission

DSP

digital signal processing

DTL

Deutsche Telecom Laboratories

DYANET-II

DYnamic channel Assigning and routing satellite-aideddigital NETwork

EBU

European Broadcasting Union

EC

European Community

ECM

electronic counter measures

EFLA

European feeder link antenna

EHF

extremely high frequency

EIRP

Effective Isotropic Radiated Power

ELDO

European Launcher Development Organization

EMS

European Mobile System

EMSS

Experimental Mobile Satellite System

ENRI

Electronic Navigation Research Institute

EPC

electronic power conditioners

ERS-1

European Remote Sensing Satellite

ESA

European Space Agency

ESRO

European Space Research Organization

ESTEC

European Space Research and Technology Center

ETS

Engineering Test Satellite

ETSI

European Technical Standards Institute

FAFR

focal array fed reflector

FCC

Federal Communications Commission

FDDI

Fiber Distributed Data Interface

FDMA

Frequency Division Multiple Access

FEC

forward error correction

FES

fixed earth station

FET

field effect transistor

FFT

Fast Fourier Transform

fl

feeder link

FLASH TV

Flexible Advanced Satellite System for High Quality TV

FM

frequency modulation

FMC

fixed and mobile communications experiment

FIFO

first in first out

FSS

fixed satellite service

GEO

geosynchronous earth orbit

GNSS

Global Navigation Satellite System

GPF

Geo-Stationary Platform

GPSS

Global Positioning Satellite System

GSOC

German Space Operations Center

GTO

geosynchronous transfer orbit

HD-MAC

high definition-multiplexed analog components

HDR

high-data-rate

HDTV

high definition television

HEMT

high electron mobility transistor

HEMT-LNA

high electron mobility transistor low noise amplifier

HEO

highly elliptical orbit

HPA

high power amplifier

IBS

International Business Service

IC

integrated circuit

IDR

Intermediate Data Rate

IF

intermediate frequency

IFP

intermediate frequency processor

IMD

intermodulation distortion

IMS

Innovative Modular Satellite

IOI

In-Orbit Infrastructure

IOL

inter-orbit link

IOLA

inter orbit link antenna

ISDB

Integrated Services Digital Broadcasting

ISDN

integrated service digital network

ISL

inter-satellite link

ITU

International Telecommunications Union

JEM

Japanese Experimental Module

JPL

Jet Propulsion Laboratory

KARC

Kansai Advanced Research Center

KDD

Kokusai Denshin Denwa Company, Ltd.

KDDL

KDD R&D Laboratories

KSA

K-band single access

KSRC

Kashima Space Research Center

LAN

local area network

LCE

laser Communication Experiment

LEO

low earth orbit

LHCP

left-hand circular polarization

LLM

L-Band land mobile

LMSS

land mobile satellite services

LNA/DC

low noise amplifier/down converter

LNA

low-noise amplifier

LO

local oscillator

LUFET

line unified FET

M-CRL

MELCO Central Research Laboratory

MAN

metropolitan area network

MARECS-A

Maritime European Community Satellite-A

MCS

master control station

MELCO

Mitsubishi Electric Corporation

MESFET

Metal Semiconductor FET

MET

Matra Ericsson Telecomm

MF-TDMA

Multi-Frequency TDMA

MHS

microwave humidity sounder

MIC

microwave integrated circuit

MITI

Ministry of International Trade and Industry (Japan)

mm Wave

millimeter wave

MMIC

monolithic microwave integrated circuit

MMS

Matra-Marconi Space

MMSS

Maritime Mobile Satellite Services

MOBS

modular on-board switching system

MOMS

modular optoelectronic multispectral scanner

MOS-FET

metal oxide semicondutor-field effect transistor

MPA

matrix power amplifier

MPT

Ministry of Posts and Telecommunications (Japan)

MSBN

Mobile Satellite Business Network

MSM

microwave switch matrix

MSS

mobile satellite services

MW & HUV

microwave and high voltage devices

NASDA

National Space Development Agency (Japan)

NDI

non-developmental items

NEC

Nippon Electric Corporation

NF

noise figure

NTT

Nippon Telephone and Telegraph

OBP

on-board processing

OCE

O-band communications experiment

OMT

orthomode transducers

OMUX

output multiplexer

OQPSK

offset QPSK

PCS

personal communications services

PHP

Personal Handy Phone

PIM

passive intermodulation

POEM

polar orbit earth monitor

PP

propagation package

PPF

Polar Platform

PSDE

Programme for Space Demonstration and Experimental payloads

PSTN

Public switched Telephone Network

PTT

Posts, Telephone and Telegraph

QPPM

quadrature pulse position modulation

QPSK

quadrature phase shift keying

RACE

Research in Advanced Communications Experiment

RDSS

radio determination satellite services

RF

radio frequency

RHCP

right-hand circular polarization

RITA

RF Ion thruster assembly

RMSM

reconfigurable microwave switching matrix

RSM

RF switch matrix

SAC

Space Activities Commision

SAR

synthetic aperture radar

SAW

surface acoustic wave

SCAR

Satellite Communications Advanced Research

SCL

Space Communications Laboratory

SCPC

single channel per carrier

SCR

Space Communications Research

SCT

superconductivity core technologies

SDIO

Strategic Defense Initiative Office

SEED

self-electro-optic-effect devices

SEU

single event upset

SFLA

steerable feeder link antenna

SFU

Space Flyer Unit

SIC

S-band intersatellite communications

SILEX

Semiconductor Intersatellite Link Experiment

SIR-C

spaceborne imaging radar-C

SKDR

S-band/Ka-band data relay

SMDS

switched multimegabit data services

SNG

satellite news gathering

SOS

silicon on sapphire

SS

specialized service or spread spectrum

SS-CDMA

Spread Spectrum-Code Division Multiple Access

SS-FDMA

Spread Spectrum-Frequency Division Multiple Access

SS-TDMA

Spread Spectrum-Time Division Multiple Access

SSB

single side band

SSBTP

Sequence Scheduling Burst Transmission Planning

SSPA

solid state power amplifiers

STS

Space Transportation System

T/TST

time/time-space-time

TAO

Telecommunication Advancement Organization

TCP

transmission control protocol

TDD

time division duplex

TDM

time division multiplex

TDMA

time division multiple access

TDRSS

tracking and data relay satellite system

TEMISAT

TElespazio MIcro SATellite

TLTP

Telecom Long Term Plan

TMI

Telesat Mobile Incorporated

TRMM

Tropical Rainfall Measurement Mission

TT&C

tracking, telemetry, and command

TVB

television broadcast

TVRO

TV receive only

TWT

travelling wave tube

TWTA

travelling wave tube amplifier

UET

user earth terminal

UNOM

users, network operators, and manufacturers

UPC

uplink power control

USAT

ultra small aperture terminals

UST

user space terminals

VLBI

very long baseline interferometry

VLSI

very large scale integration

VPD

variable power divider

VPS

variable phase shifter

VSAT

very small aperture terminal

WAN

wide area network

WARC

World Administrative Radio Conference

WD/TD

wavelength-division/time-division

WEDOS

World Environment and Disaster Observation System