1、A/B Autobrake ABE ARINC 429 Bus Emulator ABM Asynchronous Balanced Mode A-BPSK ( 1 ) Aeronautical Binary Phase Shift Keying ( 2 ) Aviation Binary Phase Shift Keying ABRV Abbreviation ABS Absolute AC ( 1 ) Advisory Circular ( 2 ) Alternating Current A/C Aircraft ACA Address Compression Algorithm ACAC
2、 Air-Cooled Air Cooler ACAS Airborne Collision Avoidance System ACARS Aircraft Communications Addressing and Reporting System ACARS Polled Mode An ACARS mode of operation in which the airborne system transmits only in response to received uplink messages (polls) ACC ( 1 ) Active Clearance Control (
3、2 ) Area Control Center Acclrm Accelerometer ACCTS Aviation Coordinating Committee for Telecommunications Services ACE ( 1 ) The control character meaning technical acknowledge ( 2 ) Actuator Control Electronics ( 3 ) Advanced Certification Equipment ACF ( 1 ) Area Control Facility ( 2 ) ACARS Conve
4、rgence Function (ARINC 622) ACID Aircraft Identification ACIPS Airfoil and Cowl Ice Protection System ACK The control character meaning technical acknowledgement of an uplink, used in an ACARS System ACKNLGE Acknowledge ACMP Alternating Current Motor Pump ACMS Aircraft Condition Monitoring System AC
5、O Aircraft Certification Office ACP Audio Control Panel ACRP Aircraft Certification Regulatory Program ACS ( 1 ) Active Control System ( 2 ) Audio Control System ACSG Aeronautical Communications Sub-Group ACT Active ACU ( 1 ) Apron Control Unit ( 2 ) Antenna Control Unit ( 3 ) Autopilot Control Unit
6、 A/D Analog-To-Digital AD Administrative Domain ADA Computer Programming Language ADAS Automated Weather Observing System Data Acquisition System ADATE Advanced Design Adaptive Test Executive ADC ( 1 ) Air Data Computer: A computer that receives inputs from temperature sensors as well as static and
7、pitot ports. Then it generates altitude, airspeed, vertical speed and several computed temperatures. ( 2 ) Analog-to-Digital Converter ADF Automatic Direction Finder: Receiver that provides bearings to radio frequency transmitters in a compatible frequency range. ADI Attitude Director Indicator:A PF
8、D display that provides pitch and roll information. ADIRS Air Data Inertial Reference System ADIRU Air Data Inertial Reference Unit ADL ( 1 ) Aeronautical Data Link ( 2 ) Airborne Data Loader (ARINC 615) ADLP ( 1 ) Airborne Data Link Protocol ( 2 ) Aircraft Data Link Processor (MODE-S) ADLS Aeronaut
9、ical Data Link Services ADM Air Data Module ADMS Airline Data Management System ADNS ARINC Data Network Service ADP Air Data Processor ADPCM Adaptive Pulse Code Modulation ADRAS Airplane Data Recovery and Analysis System ADS ( 1 ) Air Data System ( 2 ) Automatic Dependent Surveillance: A surveillanc
10、e technique in which aircraft automatically provide, via data link, data derived from on-board navigation and position fixing systems, including aircraft identification, four dimensional position and additional data as appropriate ( 3 ) Audio Distribution System ADS-A Automatic Dependent Surveillanc
11、eAddress (aka ADS-C) ADS-B Automatic Dependent SurveillanceBroadcast ADS-C Automatic Dependent SurveillanceContract (aka ADS-A) ADSEL Address Selective. ASSR system electronically arranged to address each transponder selectively. Only a particular transponder will respond, thus avoiding garbling. AD
12、SEL uses a monopulse technique to provide more accurate bearing measurement. ADSEL is compatible with DABS. (Refer to Mode S transponders.) ADSP Automatic Dependent Surveillance Panel ADSU ( 1 ) Automatic Dependent Surveillance System ( 2 ) Automatic Dependent Surveillance Unit ADTN Administrative D
13、ata Transmission Network ADV Advance AECU Audio Electronic Control Unit AEEC Airlines Electronic Engineering Committee AEG Aircraft Evaluation Group AEP ( 1 ) Audio Entertainment Player ( 2 ) Autopilot Engage Panel AERA Automated En Route traffic control AES Aircraft Earth Station AEU Auxiliary Equi
14、pment Unit AF Airway Facilities AFC ( 1 ) Automatic Frequency Compensation ( 2 ) Automatic Frequency Control AFCAS Automatic Flight Control Augmentation System AFCS Automatic Flight Control System AFD ( 1 ) Adaptive Flight Display ( 2 ) Advanced Flight Deck ( 3 ) Autopilot Flight Director AFDC Autop
15、ilot Flight Director Computer AFDS Autopilot Flight Director System AFDX Avionics Full Duplex Switched Ethernet AFEPS ACARS Front End Processing System AFI Authority Format Identifier AFIS ( 1 ) Airborne Flight Information System ( 2 ) Automatic Flight Information Service AFM Aircraft Flight Manual
16、AFN ATS Facilities Notification AFS ( 1 ) Aeronautical Fixed Service ( 2 ) Airborne File Server ( 3 ) Automatic Flight System AFSS Automatic Flight Service Station AFSK Audio Frequency Shift Keying AFTN Aeronautical Fixed Telecommunications AFTRCC Aerospace and Flight Text Radio Coordinating Council
17、 A/G Air/Ground AGACS Automatic Ground-Air Communication System. It is also known as ATCSS or DATA LINK. AGATE Advanced General Aviation Transport Experiment AGC Automatic Gain Control. AGC is used to maintain the output level of the receiver. AGIS Air Ground Intermediate System AGL Above Ground Lev
18、el AGS ARINC 661 Graphics Server AH Alert Height: A height above the runway based on the characteristics of the aircraft and its fail operational landing system, above which a Category III approach would be discontinued and a missed approach initiated if a failure occurred in one of the redundant pa
19、rts of the fail operational landing system, or in the relevant ground equipment. AHC Attitude Heading Computer: A computer that is part of the AHRS. Generates information for the pitch and roll displays. AHRS Attitude/Heading Reference Systems: System which measures and outputs aircraft attitude and
20、 heading. AHS Attitude/Heading System: Either an AHRS or an IRS. AIDS Aircraft Integrated Data System AIT Advanced Intelligence Tape - used for the storage of digital video and audio files AIRAC Aeronautical Information Regulation and Control AIV Accumulator Isolation Valve AIX Advanced Interactive
21、Executive AJPS AFEPS Journal Processing System A/L Autoland ALC Automatic Level Control. A circuit used to maintain the output of a transmitter regardless of variations in the attenuation of the system. ALE Automatic Link Establishment ALI Altimeter ALPA Airline Pilots Association ALS ( 1 ) Applicat
22、ion Layer Structure ( 2 ) Ambient Light Sensor ALSIP Clear ALT ( 1 ) Airborne Link Terminal ( 2 ) Alternate ( 3 ) Altimeter ( 4 ) Altitude ALT AHC Alternate Attitude Heading Computer ALTHOLD Altitude Hold Mode Altitude Height determined by barometric pressure Altitude Ring A continuous return across
23、 the display at a range equivalent to aircraft altitude (WXR) ALTN Alternate ALTS Altitude Select ALTS CAP Selected Altitude Capture: An autopilot flight director mode. ALU Arithmetic and Logic Unit AM Amplitude Modulation. A signal where the carrier signal is varied in amplitude to encode voice or
24、data information. AMASS Airport Movement Area Safety System AMAT Aircraft Mount Alignment Detector AMC Avionics Maintenance Conference AMCP Aeronautical Mobile Communications Panel AME Amplitude Modulation Equivalent. An AM type signal that processes the modulated information signal and carrier freq
25、uency separately and then reconstructs the two signals to make an equivalent AM signal. AMI ( 1 ) Airline Modifiable Information ( 2 ) Alpha Margin Indicator:A device that displays the angle of attack. AMIU Area Microphone Interface Unit AMLCD Active Matrix Liquid Crystal Display AMM Aircraft Mainte
26、nance Manual AMP ( 1 ) Audio Management Panel ( 2 ) Avionics Modernization Program AMS ( 1 ) Apron Management Service ( 2 ) Avionics Management Service AMS(R)S Aeronautical Mobile Satellite (Route) Service AMSS Aeronautical Mobile Satellite Service AMTOSS Aircraft Maintenance Task Oriented Support S
27、ystem. An automated data retrieval system. AMTS Aeronautical Message Transfer Service AMU Audio Management Unit AMUX Audio Multiplexer ANC Air Navigation Commission (ICAO) Aneroid An evacuated and sealed capsule or bellows that Capsule expands or contracts in response to changes in pressure. ANICS A
28、laskan NAS Interfacility Communication System ANLP ARINC Network Layer Protocol ANP Actual Navigation Performance: Measure of the current estimated navigation performance, excluding Flight Technical Error (FTE). ANS ( 1 ) Ambient Noise Sensor ( 2 ) Area Navigation System ANSI American National Standards Institute ANSP Air Navigation Servic
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