Jin Liang, Yin Qinye, Yao Minli. INSTANTANEOUS FREQUENCY AND TIME-FREQUENCY DISTRIBUTIONS[J]. Journal of Electronics & Information Technology, 1998, 20(5): 597-603.
Citation:
Jin Liang, Yin Qinye, Yao Minli. INSTANTANEOUS FREQUENCY AND TIME-FREQUENCY DISTRIBUTIONS[J]. Journal of Electronics & Information Technology, 1998, 20(5): 597-603.
Jin Liang, Yin Qinye, Yao Minli. INSTANTANEOUS FREQUENCY AND TIME-FREQUENCY DISTRIBUTIONS[J]. Journal of Electronics & Information Technology, 1998, 20(5): 597-603.
Citation:
Jin Liang, Yin Qinye, Yao Minli. INSTANTANEOUS FREQUENCY AND TIME-FREQUENCY DISTRIBUTIONS[J]. Journal of Electronics & Information Technology, 1998, 20(5): 597-603.
The concept of instantaneous frequency(IF) and its traditional construct method--analytic method are introduced in this paper.Then by means of joint time-frequency analysis,the fphysical meaning of IF and its relation with the time-frequency distributions are also discussed.It is pointed out that one of the destinations of 2-D time-frequency distributions is to estimate the IF,and the different distribution can be of different effect.The performances of several popular distributions are compared,consequently AOP method is found to be a suitable one to estimate the IF.
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