ATRK Along-Track Error沿航線誤差

ATS Air Traffic Services空中交通服務(wù)

ATSC Air Traffic Services Communication空中交通服務(wù)通信

ATT Attitude姿態(tài)

AUSSAT Australian Satellite澳大利亞衛(wèi)星

AUTODIN Automated Digital Network自動化數(shù)字網(wǎng)絡(luò)

AUTOVON Automatic Voice Network自動化話音網(wǎng)絡(luò)

AUX Auxiliary輔助

AVOL Aerodrome Visibility Operational Level機(jī)場能見度運(yùn)行等級

AVPAC Aviation VHF Packet Communications航空甚高頻分組通信

AVS Aviation Standards航空標(biāo)準(zhǔn)

AWANS Aviation Weather And NOTAM System航空氣象和航行通告系統(tǒng)

BARO Barometric氣壓

BAZ Back Azimuth后方位，背航道

BER Basic Encoding Rules基本編碼規(guī)則

BER Bit Error Rate誤碼率

BIT Built-In-Test機(jī)內(nèi)測試

BITE Built-In-Test Equipment機(jī)內(nèi)測試設(shè)備

BOP Bit Oriented Protocol面向位的協(xié)議

BPS bits per second每秒傳送位數(shù)；每秒比特?cái)?shù)

BPSK Biphase Shift Keying兩相相移鍵控

C/A (CA) Code Course Acquisition Code粗獲碼（民用的）

C/I Carrier-to-Interference Ratio信號干擾比

C/N Carrier-to-Noise Ratio信噪比

CA Conflict Alert沖突告警

CA GPS Course- Acquisition Code粗捕獲碼（民用碼）

CA/MSAW Conflict Alert/Minimum Safe Altitude Warning沖突告警/最低安全高度警告

CAA Civil Aviation Administration, Civil Aeronautical Authority, Civil Aviation Authority民航局

CAAC General Administration of Civil Aviation of China中國民用航空總局

CAASD Center for Advanced Aviation System Development(The MITRE Corporation) (MITRE公司)高級航行系統(tǒng)開發(fā)中心

CAB Civil Aeronautical Bureau民航局

CARF Central Altitude Reservation Function中央飛行高度保留功能

CARs Civil Air Regulations民用航空規(guī)則

CHI Computer Human Interface機(jī)人接口

CIDIN Common ICAO Data Interchange Network國際民航組織公用數(shù)據(jù)交換網(wǎng)

CIS Cooperative independent surveillance合作式獨(dú)立監(jiān)視

CLAM Cleared Level Adherence Monitoring放行高度保持監(jiān)視

CLB Climb爬升

CLK Clock時鐘

CLNP Connectionless Network Protocol無連接網(wǎng)絡(luò)規(guī)程（協(xié)議）

CLR Clear清除

CMC Central Maintenance Computer中央維護(hù)計(jì)算機(jī)