碩士 / 國立成功大學 / 水利及海洋工程學系碩博士班 / 95 / Data buoy is the most frequent applied alternatives on the measurement of oceanographical data.The displacement spectra can be obtained by analyzing the observed heave of the buoy hull. The low frequency noise contaminant, which can be magnified due to the linear conversion from the acceleration spectrum to the displacement spectrum, is the major cause of the inaccuracy. To reduce the error, a correction method to eliminate low-frequency noise is developed based on the previous spectrum’s shape theory. The low-frequency noise correction method based on the relation of low-frequency and energy, estimate the noise well and improve the accuracy of buoy measurements.
| Identifer | oai:union.ndltd.org:TW/095NCKU5083064 |
| Date | January 2007 |
| Creators | Chung-Ju Chiang, 江俊儒 |
| Contributors | CHIA-CHUN KAO, PIEN-CHUN LI, 高家俊, 李汴軍 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 52 |
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