A New Joint Denoising Algorithm for High-G Calibration of MEMS Accelerometer Based on VMD-PE-Wavelet Threshold

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Methods</td><td class="align_center">SNR</td><td class="align_center">Correlation coefficient</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">VMD-PE-wavelet threshold</td><td class="align_center">18.56</td><td class="align_center">0.982</td></tr><tr><td class="align_left">Wavelet threshold</td><td class="align_center">16.42</td><td class="align_center">0.842</td></tr><tr><td class="align_left">EMD</td><td class="align_center">17.25</td><td class="align_center">0.567</td></tr><tr><td class="align_left">VMD</td><td class="align_center">17.86</td><td class="align_center">0.677</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Performance comparison of different denoising methods.</div>

Shock and Vibration

tab5

Table 5

Table 5: A New Joint Denoising Algorithm for High-G Calibration of MEMS Accelerometer Based on VMD-PE-Wavelet Threshold 