Spatial time-frequency distributions for direction finding and blind source separation

Moeness G. Amin

doi:10.1117/12.342958

22 March 1999 Spatial time-frequency distributions for direction finding and blind source separation

Moeness G. Amin

Proceedings Volume 3723, Wavelet Applications VI; (1999) https://doi.org/10.1117/12.342958
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

The paper discusses the application of the new concept of spatial time-frequency distribution (STFD), and more generally the spatial arbitrary joint-variable distribution, to key array signal processing problems including blind source separations and high resolution direction finding of narrowband and broadband sources with stationary and nonstationary temporal characteristics. The STFD can be formulated based on the widely used class of time-frequency distributions, namely Cohen's class, or it can be devised by incorporating other classes of quadratic distributions, such as the Hyperbolic class and the Affine class. The paper delineates the fundamental offerings of STFDs, presents three examples of array signal processing using the localization properties of time-frequency distributions of the impinging signals, and summarizes recent contributions in this area.

Citation Download Citation

Moeness G. Amin "Spatial time-frequency distributions for direction finding and blind source separation", Proc. SPIE 3723, Wavelet Applications VI, (22 March 1999); https://doi.org/10.1117/12.342958

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available