D2D |
Direct-to-Device |
DA |
Demand Assignment |
DAA |
Data Access Arrangement |
DA/TDMA |
Demand Assigned TDMA |
DAB |
Digital Audio Broadcasting |
DAC |
Demand Assignment Circuit Establishment |
DAC |
Digital to Analogue Converter |
DAD |
Demand Assignment Circuit Disestablishment |
DAF |
Diffuse Acoustic Field |
DAIT |
Demand Assigned International Terminal |
DAMA |
Demand Assignment Multiple Access |
DARPA |
Defense Advanced Research Projects Agency |
DASS |
Data Acquisition and Stimuli Software |
DASS |
Demand Assignment Signalling System |
DATE |
Duly Authorised Telecommunications Entity |
DAVIC |
Digital Audio Visual Council |
DAVID |
Digital Audio/Video Interactive Decoder |
dB |
deciBel |
dBc |
deciBels with respect to centre frequency |
DBF |
Digital Beamforming |
dBi |
deciBels with respect to an isotropic antenna |
dBm |
deciBels with respect to 1mW |
DBR |
Data Broadcast Receiver |
DBS |
Direct Broadcasting by Satellite |
DBTR |
Digital Bit Timing Recovery |
dBW |
Decibels with respect to 1W |
DC |
Direct Current |
D/C |
Down Converter |
DC |
Downlink Channel |
DC |
Dragon Controller |
DCA |
Defense Communications Agency |
DCC |
Downlink Channel Controller |
DCE |
Data Circuit Terminating Equipment |
DCE |
Data Communications Equipment |
DCE |
Despun Control Electronics |
DCE |
Drive Control Electronics |
DCLA |
Design Coupled Loads Analysis |
DCME |
Digital Circuit Multiplication Equipment |
DCN |
Data Communication Network |
DCN |
Document Change Notice |
DCP |
Data Collection Platform |
DCPSK |
Differentially Coherent Phase Shift Keying |
DCR |
Document Change Record |
DCR |
Document Change Request |
DCRT |
Data Collection Receive Terminal |
DCS |
Data Collection System |
DCS |
Direct Couple System |
DC/TDMA |
Demand Controlled TDMA |
DCU |
Display and Control Unit |
DD/C |
Dual Downconverter |
DDC |
Digital Down Converter |
DDD |
Detailed Design Document |
DDI |
Direct Digital Interface |
DDR |
Detailed Desind Review |
DDS |
Dataphone Digital Service |
DDS |
Digital Data Service |
DDS |
Digital Data System |
DDS |
Direct Digital Synthesis |
DDS |
Domestic Data Service |
DDT&E |
Design, Development, Test and Evaluation |
DEC |
Declination |
Delta-v |
Change in velocity |
DEMOD |
Demodulator |
DEMUX |
Demultiplexer |
DES |
Data Encryption Standard |
DES |
Digital Encryption Standard |
DET |
Detector |
DEV |
Deviation |
DFAN |
Direct Field Acoustic Noise |
DFAT |
Direct Field Acoustic Testing |
DFE |
Data Front End |
DFS |
Deutsche Fernmelde Satellit |
DGPS |
Differential GPS |
DIOS |
Digital In Band Open Loop Synchronisation |
DiSEqC |
Digital Satellite Equipment Control |
DKF |
DSN Keyword File |
DL |
Downlink |
D/L |
Downlink |
DLA |
Driver/Limiter Amplifier |
DLC |
Dynamic Load Control |
DLCI |
Data Link Connection Identifier |
DLL |
Downline Loading |
DM |
Delta Modulation |
DMA |
Direct Memory Access |
D-MAC |
Type D Multiplexed Analogue Components |
D2-MAC |
Type D2 Multiplexed Analogue Components |
DMB |
Digital Multimedia Broadcasting |
DM/PSK |
Delta Modulation / Phase Shift Keyed |
DMS |
Direct Media Service |
DMUX |
Demultiplexer |
DN |
Descending Node |
DNI |
Digital Non-interpolated Interface |
DNP |
Dynamic Pressure |
DNR |
Dynamic Noise Reduction |
DNS |
Domain Name System |
DNTO |
DiNitrogen TetrOxide |
DoC |
Declaration of Conformity |
DoD |
Department of Defense |
DoF |
Degree of Freedom |
DOMSAT |
Domestic Satellite System |
DORSY |
Dropout Reduction System |
DP |
Dial Pulse |
DPA |
Destructive Physical Analysis |
DPCM |
Differential Pulse Code Modulation |
DPD |
Dynamic Pre Distortion |
DPL |
Downrange Propulsive Landing |
DPS |
Data Processing System |
DPSK |
Differential Phase Shift Keyed |
DPU |
Data Processing Unit |
DPU |
Digital Processing Unit |
DQPSK |
Differential Quadrature Phase Shift Keyed |
DR |
Dynamic Range |
DRB |
Delivery Review Board |
DRD |
Document Requirements Description |
DRL |
Document Requirements List |
DRT |
Data Recording Terminal |
DRO |
Dielectric Resonator Oscillator |
DRO |
Distant Retrogade Orbit |
DS |
Direct Sequence |
D/S |
Data/Speech |
DSB |
Double Sideband |
DSB-SC-AM |
Double Sideband Suppressed Carrier Amplitude Modulation |
DSB-SC-ASK |
Double Sideband suppressed carrier Amplitude Shift Keyed |
DSCC |
Deep Space Communications Complex |
DSF |
Dielectric Space Frame |
DSG |
Deep Space Gateway |
DSH |
Deep Space Habitat |
DSH |
Dual Seizure Handling |
DSI |
Digital Speech Interpolation |
DSIF |
Deep Space Instrumentation Facility |
DSL |
Digital Subscriber Line |
DSMS |
Deep Space Mission System |
DSN |
Deep Space Network |
DSNG |
Digital Satellite News Gathering |
DSP |
Digital Signal Processor |
DSP |
Digital Signal Processing |
DSR |
Digital Satellite Radio |
DSRM |
DAVIC System Reference Model |
DSS |
Deep Space Station |
DSSS |
Direct Sequence Spread Spectrum |
DST |
Direct Sounding Transmission |
DT |
Dynamical Time |
DTE |
Data Terminating Equipment |
DTF |
Dynamic Traffic Filter |
DTH |
Direct To Home Broadcasting |
DTI |
Data Transfer Interface |
DTMF |
Dual Tone Multi Frequency |
DTT |
Digital Terrestrial Television |
DTT |
Downlink Tracking and Telemetry |
DUS |
Data Utilisation Stations |
DUT |
Device Under Test |
DVB |
Digital Video Broadcasting |
DVB-H |
Digital Video Broadcasting – Handheld |
DVB-IPDC |
Digital Video Broadcasting – IP DataCasting |
DVB-RCS |
Digital Video Broadcasting - Return Channel by Satellite |
DVB-RCS NG |
DVB-RCS Next Generation |
DVT |
Design Verification Test |
DVB-S |
Digital Video Broadcast by Satellite |
DVB-S2 |
Digital Video Broadcasting – Satellite version 2 |
DVB-SH |
Digital Video Broadcasting – Satellite to Handheld |
DW |
Data Word |
DX |
Duplex |