A Novel Instantaneous Frequency Computation Approach for Empirical Mode Decomposition

This paper introduces a new instantaneous frequency computation approach -Counting Instantaneous Frequency for a general class of signals called simple waves. The classsimple wave contains a wide range of continuous signals for which the concept instantaneous frequency has a perfect physical sense. The concept of -Counting Instantaneous Frequency also applies to all the discrete data. For all the simple wave signals and the discrete data, -Counting instantaneous frequency can be computed directly without signal decomposition process. The intrinsic mode functions obtained through empirical mode decomposition belongs to simple wave. So -Counting instantaneous frequency can be used together with empirical mode decomposition. Keywords—Instantaneous frequency, empirical mode decomposition, intrinsic mode function.