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| 引用本文： | 周志易,杨志强,高飞,李晓莉.????С???任????????????????????????????????????????о?[J].大地测量与地球动力学,2013,33(5):154-156. |
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| 作者姓名： | 周志易 杨志强 高飞 李晓莉 |
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| 作者单位： | 长安大学地质工程与测绘学院;合肥工业大学土木与水利工程学院 |
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| 基金项目： | 国家自然科学基金(41074006) |
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| 摘 要： | ????????????????????????????????????????????????????仯???仯??????????????У??о??????????????????????????????????????????????С?????????????Ч??????????????????????????Ч??????????????÷?????????????????????????????????????????????????????????????????????????Ч??????????????????????????????????
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| 关 键 词： | ?????????????? ???? ?????????????? С???任 ??????? |
STUDY ON METHOD FOR REDUCING NOISES IN MAGLEV GYRO ??
TOTAL STATION DIRECTIONAL SYSTEM BASED ON WAVELET ??
TRANSFORM THEORY |
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| Zhou Zhiyi;Yang Zhiqiang;Gao Fei;Li Xiaoli.STUDY ON METHOD FOR REDUCING NOISES IN MAGLEV GYRO ??
TOTAL STATION DIRECTIONAL SYSTEM BASED ON WAVELET ??
TRANSFORM THEORY[J].Journal of Geodesy and Geodynamics,2013,33(5):154-156. |
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| Authors: | Zhou Zhiyi;Yang Zhiqiang;Gao Fei;Li Xiaoli |
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| Institution: | Zhou Zhiyi;Yang Zhiqiang;Gao Fei;Li Xiaoli;School of Geodesy Engineering and Geomatics,Chang’an University;School of Civil Engineering and Hydraulic,Hefei University of Technology; |
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| Abstract: | The observed rotor current data of maglev gyro total station directional system can be described as a kind of nonlinear data series relating to time and environment. Practical results show that, by using wavelet decomposition and reconstruction, this method can efficiently extract directional rotor current characteristics from the observed data series which were disturbed by strong noises. Moreover, comparing with traditional processing techniques, it has excellent features for non??stationary and nonlinear rotor series data filtering in directional system. It can effectively improve the instrument orientation results, and also improve the precision of directional angle. |
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| Keywords: | maglev gyro total station direction nonlinear data sequence wavelet transform signal and noise separation |
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