A Predominant Performance Quadratic Time-Frequency Distribution

There are two important problem in the research of time-frequency distribution, which are restraining the cross terms and amending the resolutions of the time domain and the frequency domain. A new and predominant performance quadratic time-frequency kernel is presented in this paper. The new kernel can well restraining the cross terms compared with the WVD and the BD. And it has a good performance in the time domain and the frequency domain together.