Sensitivity analysis of helicopter IMC decelerating steep approach and landing performance to navigation system parametersThe present investigation is concerned with a sensitivity analysis of the Decelerated Steep Approach and Landing (DSAL) maneuver to on-board and ground-based navigation system parameters. The Instrument Meteorological Conditions (IMC) DSAL maneuver involves decelerating to zero range rate while tracking the localizer and glideslope. The considered study investigated the performance of the navigation systems using Constant Deceleration Profile (CDP) guidance and a six degrees glideslope trajectory. A closed-loop computer simulation of the UH1H helicopter DSAL system was developed for the sensitivity analysis. Conclusions on system performance parameter sensitivity are discussed.
Document ID
19840063565
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Karmali, M. S. (Analytical Mechanics Associates, Inc. Mountain View, CA, United States)
Phatak, A. V. (Analytical Mechanics Associates, Inc. Mountain View, CA, United States)
Bull, J. S. (Analytical Mechanics Associates, Inc. Mountain View, CA, United States)
Peach, L. L. (NASA Ames Research Center Moffett Field, CA, United States)
Demko, P. S. (U.S. Army, Aviation Research and Development Command, Fort Monmouth NJ, United States)