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Annex 10 — Aeronautical Communications Volume I Table B-73. Type 5 predicted ranging source availability message Data content Bits used Range of values Resolution Modified Z-count 14 0 to 1 199.9 s 0.1 s Spare 2 — — Number of impacted sources (N) 8 0 to 31 1 For N impacted sources Ranging source ID 8 1 to 255 1 this A 8 1 to 31 1 For NA impacted ranging sources for this approach Ranging source ID 8 1 to 255 1 Source availability sense 1 — — Source availability duration 7 0 to 1 270 s 10 s Number of obstructed approaches (A) 8 0 to 255 1 For A obstructed approaches Reference path data selector 8 0 to 48 — Number of impacted sources for approach (N ) Source availability sense 1 — — Source availability duration 7 0 to 1 270 s 10 s Table B-74. GBAS — GPS accu racy requirement parameters Ground accuracy designator letter θn (degrees) a0 (metres) a1 (metres) θ0 (degrees) a2 (metres) A ≥ 5 0.5 1.65 14.3 0.08 B ≥ 5 0.16 1.07 15.5 0.08 C > 35 0.15 0.84 15.5 0.04 5 to 35 0.24 0 — 0.04 Table B-75. GBAS — GLONASS accuracy requirement parameters designator letter θn (degrees) a0 (metres) a1 (metres) θ0 (degrees) a2 (metres) Ground accuracy A ≥ 5 1.58 5.18 14.3 0.078 B ≥ 5 0.3 2.12 15.5 0.078 C > 35 0.3 1.68 15.5 0.042 5 to 35 0.48 0 — 0.042 3.6.7.1.1.2 The RMS of the ground subsystem contribution to the corrected pseudo-range accuracy for SBAS satellites shall be: 23/11/06 APP B-106 Appendix B Annex 10 — Aeronautical Communications pr _ gnd RMS 1.8 (metres) M ≤ where M is as defined in 3.6.7.1.1.1. Note.— GAD classifications for SBAS ranging sources are under development. 3.6.7.1.2.1.1 Category I precision approach and APV. For a GBAS ground subsystem that provides the Category I rec h. of tellite signal monitoring required in 3.6.7.2.6 and the integrity risk associated with the monitoring in 3.6.7.3. Note 2.— GBAS signal-in-space integrity risk is defined as the probability that the ground subsystem provides information which when processed by a fault-free receiver, using any GBAS data that could be used by the aircraft, results in an out-of-tolerance lateral or vertical relative position error without annunciation for a period longer than the maximum me-to-alert. An out-of-tolerance lateral or vertical relative position error is defined as an error that exceeds the Category I 3.6.7.1.2.1.1.1 The GBAS ground subsystem maximum time-to-alert shall be less than or equal to 3 seconds when yp time-to-alert above is the time between the onset of the out-of-tolerance lateral or vertical relative position rror and the transmission of the last bit of the message that contains the integrity data that reflects the condition. 3.6.7.1.2.1.1.3 For Category I precision approach, the value FASLAL for each FAS block, as defined in the FAS S block, s defined in the FAS vertical alert limit field of the Type 4 message, shall be no greater than 10 metres. 2.1.1.4 For APV, the value FASLAL and FASVAL shall be no greater than the lateral and vertical alert limits iven in Annex 10, Volume I, 3.7.2.4. . For GBAS ground subsystem that provides the GBAS positioning service, tegrity risk shall be less than 9.9 × 10–8 per hour. excluded and the effects of all other GBAS, SBAS and ore satellite constellations failures are included. The GBAS ground subsystem integrity risk includes the integrity risk of tellite signal monitoring required in 3.6.7.2.6 and the integrity risk associated with the monitoring in 3.6.7.3. Note 2.— GBAS signal-in-space integrity risk is he ground subsystem provides infor hich when processed , using any GBAS data that coul results in a nce horizontal rela ut annunciation for a period long toale - defined as an error that exceeds both the horizontal protection lev h 3.6.7.1.2 Integrity 3.6.7.1.2.1 GBAS ground subsystem integrity risk p ision approach or APV, the integrity risk shall be less than 1.5 × 10–7 per approac Note 1.— The integrity risk assigned to the GBAS ground subsystem is a subset of the GBAS signal-in-space integrity risk, where the protection level integrity risk (3.6.7.1.2.2.1) has been excluded and the effects of all other GBAS, SBAS and core satellite constellations failures are included. The GBAS ground subsystem integrity risk includes the integrity risk sa www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：附件10--航空电信an10_v1_6ed下
