Formulation of a minimum variance deconvolution technique for compensation of pneumatic distortion in pressure sensing devicesIncreasingly, aircraft system designs require that aerodynamic parameters derived from pneumatic measurements be employed as control-system feedbacks. Such high frequency pressure measurements' accuracy is compromised by pressure distortion due to frictional attenuation and pneumatic resonance within the sensing system. A pneumatic distortion model is here formulated and reduced to a low-order state-variable model which retains most of the full model's dynamic characteristics. This reduced-order model is coupled with standard results from minimum variance estimation theory to develop an algorithm to compensate for pneumatic-distortion effects.
Document ID
19910065998
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Whitmore, Stephen A. (NASA Flight Research Center Edwards, CA, United States)