| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
[079] Citation: Abstract
We demonstrate that two previously proposed methods for combining the
information content from multiple spectrograms into a single, positive time-
frequency function are optimal in a cross-entropy sense. The goal in combining
the spectrograms is to obtain an improved approximation of the joint time-
frequency signal density by overcoming limitations of any single spectrogram.
An example of each method is provided, and results are compared with
spectrograms and a Cohen-Posch time-frequency density (TFD) of a nonstationary
pulsed tone signal. The proposed combinations are effective and can be
efficiently computed.
["I would like a hard copy of this report"]
[Copyright]
[HELP!]
Updated: Tue Jul 15 23:54:48 2008
| |
