Knock Detection in Spark Ignition Engines Base on Complementary Ensemble Empirical Mode Decomposition-Hilbert Transform

Figure 9

(a) Decomposition Results of CEEMD for cylinder pressure signal of cylinder 1. (b) Decomposition Results of CEEMD for cylinder pressure signal of cylinder 2. (c) Decomposition Results of CEEMD for cylinder pressure signal of cylinder 3. (d) Decomposition Results of CEEMD for cylinder pressure signal of cylinder 4.

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