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Using computers to analyze continuous data. (1973)

Catherines, J. J. ; Clevenson, S. A. ; Scholl, H. F.

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Publication Date: 2011-08-16

Description: Dynamic field measurements often involve large quantities of continuous data, which must be analyzed and interpreted to obtain meaningful information. The processing can often be accomplished by tape-recording the data in analog form, performing off-line digitalization, and using the result as an input to statistical programs on a digital computer. A time series analysis was used to obtain power spectral density (PSD) curves to identify dominant frequencies. Representative PSD plots were obtained for STOL aircraft during cruise. Vibrational energy was clearly concentrated below 0.1 Hz, and was much higher in the vertical than in the lateral direction.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: Instruments and Control Systems; 46; Sept

Format: text

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