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| A NEW QUADRATIC TIME-FREQUENCY DISTRIBUTION AND A COMPARATIVE STUDY OF SEVERAL POPULAR QUADRATIC TIME-FREQUENCY DISTRIBUTIONS |
| Liu Guizhong; Liu Zhimei |
| Information Engineering Institute, Xi'an Jiaotong University,Xi'an 710049 |
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Abstract A new quadratic time-frequency distribution (TFD) with a compound kernel is proposed and a comparative study of several popular quadratic TFD is carried out. It is shown that the new TFD with compound kernel has stronger ability than the exponential distribution(ED) and the cone-shaped kernel distribution(CKD) in reducing cross terms, meanwhile almost not decreasing the time-frequency resolution of ED or CKD.
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Received: 15 August 1994
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1996, Vol. 18 
