时间:2011-08-14 22:11来源:蓝天飞行翻译 作者:航空 点击:次
ACNSG = Aircraft Classification Number Study Group ACO = Airspace Co-ordination Order ACO = Aircraft Certification Office ACOD = Area Conflict Detection ACP = Accept Message (OLDI) ACP = Acceptance Message ACP = African, Caribbean and Pacific States ACP = Aircraft Control Position (window) ACP = Airspace Control Plan ACP = Airspace Crossing Acceptance Message ACP = Allied Communications Publication ACP = Azimuth Change/Count Pulses ACP = Area Control Procedural ACP = Access Communications Processor ACP = Aerial Clock Pulses ACP = Aircraft Calling Position ACP = Aircraft Control Position ACP = Altimeter Check Point ACP = Attachment Connection Point ACP = Aeronautical Contact Points ACPI = Advanced Configuration and power Interface ACPLHA = Alternating Current Power Line Harmonic Analyser ACPO = Aircraft Position Operator ACR = Atlantic Co-ordinated Route ACR = Access Control reader ACR = AFTN Connection Request ACR = Airfield/Approach Control radar ACR = Annual Confidential Report ACR = Anonymous Call Rejection ACR = Approach control room ACR = Area Control Room ACR = Attenuation to Crosstalk Ratio ACS = Advanced Communication System (EEC) ACS = Airspace Control System ACS = Area Control Surveillance ACS = Area control services ACS = Automated Costing system ACS = Office of civil Aviation security (FAA,USA) ACSA = Allied Communications Security Agency ACSE = Application Control Service Element ACSE = Access Control and Signalling Equipment ACSE = Association Control Service Element ACSP = Area Control Services Programme ACT = Activation Message Designator (OLDI) ACT = Absolute Conjestion Threshold ACT = Advanced Controller Tools ACT = Aircraft Coordination Time ACT = ICAO Activation Message ACT/LAM = Activation Message / Logical Acknowledgement Message ACTF = Aeronautical Charting Task Force ACTIUS = Association of Computer-telephone Integration Users & Suppliers ACTS = Advanced Communications Technologies ACU = Airspace / Antenna Control Unit. ACU = Apron Control Unit Accuracy = The degree of conformance between the estimated or measured position and/or velocity and/or time of/at a platform and its true position and/or velocity and the true time. Radionavigation system accuracy is usually presented as a statistical measure of system error and is specified as: a. Predictable: The accuracy of a position with respect to the geographic or geodetic coordinates of the earth. b. Repeatable: The accuracy with which a user can return to a position whose coordinates have been measured at a previous time with the same navigation system. c. Relative: The accuracy with which a user can determine one position relative to another position regardless of any error in their true positions. In the context of the final approach phase of operation, accuracy may be more generally defined as the ability of the total system to maintain the aircraft position within a total system error (TSE) with a 95 percent probability and to stay within a specified aircraft containment surface which defines the obstacle clearance, terrain avoidance, or aircraft separation criteria for the intended operation. The total system error is based on the 95% probability combination of aircraft and non-aircraft sensor errors, display errors and flight technical errors at each point along the specified procedure. For approach, the outer tunnel must be used as the obstacle clearance surface. |