Research on Multi-wavelet's Application to Elimination of Gravitational Abnormal Deform
Zhao Chi-hang · Journal of Zhengzhou Institute of Surveying and Mapping · 2006
The expressional form of signal under the condition of multi-wavelet's formula was analyzed,and the soft threshold method was used to process the high frequency part of the gravitational abnormal signal.Based on the discrete state equation of gravitational abnormality,HGM multi-wavelet was adopted to carry out the simulation experiments of alleviating gravitational abnormal distortion.Theoretical analysis and emulation experiments indicated that both methods were effective for alleviating Gravitational value,but the performance of the method of united soft threshold was better than the method of soft threshold under same background.