GM1 ACNS.C.PBN.610 Source of horizontal
position
ED Decision 2019/011/R
Integrated global navigation satellite system/inertial navigation system (GNSS/INS) or global navigation satellite system/inertial reference unit (GNSS/IRU) position solutions reduce the rate of degradation after loss of position updating. The use of a âtightly coupledâ GNSS/inertial system to support RNP AR operations is recommended. For âtightly coupledâ GNSS/inertial systems, RTCA/DO-229D Appendix R provides additional guidance.
INS or IRU are generally not considered suitable as a sole source of horizontal position for RNP AR applications described herein. However, it is recognised that many multi-sensor navigation systems utilise INS or IRU within their navigation calculations to provide continuity when the other higher accuracy sensor(s) is (are) momentarily unavailable.
Attitude and heading reference systems (AHRSs), including an AHRS with inputs from air-data computers, are generally not considered to provide a level of performance that would be adequate to support RNPÂ AR operations, i.e. meet the criteria of Appendix B.
[Issue: CS-ACNS/2]
Loading collections...