Effects of Pressure Ports Layout on Angle of Attack and Sideslip Estimation in the Flush Air Data System

Abstract:

Flush air data system (FADS) have been successfully used on the nose tip of large manned/unmanned air vehicles instead of a traditional noseboom air data system. In order to integrate FADS with strapdown inertial navigation, high accuracy of angle of attack and sideslip is required. The estimated accuracy of angle of attack and sideslip in three types of FADS, which have different pressure ports layout, is compared using the nonlinear least squares theory. Evaluation function is provided to evaluate the accuracy of angle of attack and sideslip in different pressure ports layout. The results show that more sensors and radiation-type can provide high accuracy.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 2996-3000
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.2996
• Online since: November 2011
• Authors: Fu Li, Zhen Luo
• Keywords: Angle of Attack, Angle of Sideslip, Flush Air Data System, Nonlinear Least Squares Theory, Pressure Ports Layout

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