Abstract
Abstract Analysis of the frequency response of the input parameters of a gust probe system, which measures the turbulent flow of air, is presented. The results show that the system is very sensitive to noise created by aircraft structural and power plant vibrations. This noise appears in the form of discrete frequencies in the range 10 to 50 Hz. The noise may account for as much as 97% of the total power output by certain sensors. Since the usual range of interest for the measurement of fluctuations of meteorological parameters is 0 to 10 Hz, aliasing of these discrete frequencies may become a problem. This analysis is intended to characterize the noise so that some justification may be given to eliminate it from useful, significant data.
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