An Instantaneous Engine Speed Estimation Method Using Multiple Matching Synchrosqueezing Transform

Figure 5

The TF results of engine vibration signal and the test results of rotational speed estimation for the applied methods: (a) SST and (b) SST-based estimation result, (c) MSST and (d) MSST-based estimation result, and (e) MMSST and (f) MMSST-based estimation result.

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