DocumentCode :
3368162
Title :
Comparison study of TFA algorithms for dispersed RF signals in a noisy environment
Author :
Qian, Shie ; Dunham, Mark E. ; Strintzis, Natalie
Author_Institution :
Nat. Instrum. Incp., Austin, TX, USA
fYear :
1994
fDate :
25-28 Oct 1994
Firstpage :
144
Lastpage :
147
Abstract :
Time frequency analysis is used to study RF chirps, transcribed in ionospheric radio science experiments. To date the short time fourier transform has been the algorithm of choice, but other distributions are attractive if improved combinations of execution speed, resolution, and cross-term resistance can be found. The authors have evaluated several popular energy distributions in terms of these attributes, finding each to have desirable features, but none uniquely preferable. As yet untreated are the various linear algorithms, which show promise for improved performance
Keywords :
Fourier transforms; chirp modulation; geophysical signal processing; ionosphere; ionospheric techniques; radiofrequency interference; spectral analysis; time-frequency analysis; RF chirps; cross-term resistance; dispersed RF signals; energy distributions; execution speed; ionospheric radio science experiments; linear algorithms; noisy environment; resolution; time frequency analysis; Background noise; Chirp; Electrons; Energy resolution; Fourier transforms; Instruments; Signal resolution; Signal to noise ratio; Time frequency analysis; Working environment noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1994., Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-2127-8
Type :
conf
DOI :
10.1109/TFSA.1994.467343
Filename :
467343
Link To Document :
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