Minimum Aviation System Performance Standards for Aircraft ...

Operational Domain
�
Table 3.4.3.3.1.1a: SV Update Interval and Acquisition Range Requirements
Terminal, En Route, and Oceanic / Remote Non-Radar � Approach �
Airport
Surface �
(Note 4)
Applicable Range � R � 10 NM 10 NM < R � 20 NM 20 NM < R � 40 NM 40 NM < R � 90 NM R � 10 NM (R � 5 NM)
Equipage Class �
Example
Applications �
Required 95 th
percentile SV
Acquisition Range
Required SV
Nominal Update
Interval
(95th percentile)
(Note 5)
Required 99th
Percentile SV
Received Update
Period
(Coast Interval)
� 20xx, RTCA, Inc.
A0-A3
B0, B1, B3
A1-A3
B0, B1, B3
Airborne Conflict Management (ACM)
Enhanced
Visual
Acquisition
Standard Range
10 NM 20 NM
� 3 s (3 NM)
� 5 s (10 NM)
(Note 11)
� 6s (3 NM)
� 10 s
(10 NM)
(Note 11)
� 5 s (10 NM)
(1 s desired,
Note 2)
� 7 s
(20 NM)
� 10 s (10 NM)
� 14 s (20 NM)
Definitions for Table 3.4.3.3.1.1a:
A2-A3 A3 A1-A3
Long Range
Applications
40 NM
(Note 12)
(50 NM desired)
� 7 s (20 NM)
� 12 s (40 NM)
� 14 s (20 NM)
� 24 s (40 NM)
σhp: standard deviation of horizontal position error.
σhv: standard deviation of horizontal velocity error.
σvp: standard deviation of vertical position error.
σvv: standard deviation of vertical velocity error.
n/a: not applicable.
Notes for Table 3.4.3.3.1.1a:
Extended Range
Applications
90 NM
(Notes 3, 10)
(120 NM desired)
� 12 s
� 24 s
AILS,
Paired
Approach
A0-A3
B0, B1, B3
Surface
Situational
Awareness
10 NM 5 NM
� 1.5 s
(1000 ft
runway
separation)
� 3 s
(1s desired)
(2500 ft
runway
separation)
� 3s
(1000 ft
runway
separation)
(1s desired,
Note 2)
� 7s
(2500 ft
runway
separation)
1. The lower number represents the desired accuracy for best operational performance
and maximum advantage of ADS-B. The higher number, representative of GPS
standard positioning service, represents an acceptable level of ADS-B performance,
when combined with barometric altimeter.
� 1.5 s
� 3 s