Title :
Wideband direction-of-arrival estimation of multiple chirp signals using spatial time-frequency distributions
Author :
Gershman, Alex B. ; Amin, Moeness G.
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
fDate :
6/1/2000 12:00:00 AM
Abstract :
The recently developed concept of narrowband spatial time-frequency distributions (STFDs) is extended to the wide-band case. A new STFD-based wideband root-MUSIC estimator is proposed. This technique employs an extended coherent signal-subspace (CSS) principle involving coherent averaging over a pre-selected set of time-frequency points rather than the conventional frequency-only averaging procedure.
Keywords :
array signal processing; chirp modulation; direction-of-arrival estimation; frequency modulation; time-frequency analysis; DOA estimation; FM signals; coherent averaging; extended coherent signal-subspace principle; multiple chirp signals; sensor array; spatial time-frequency distributions; wideband direction-of-arrival estimation; wideband root-MUSIC estimator; Cascading style sheets; Chirp; Direction of arrival estimation; Narrowband; Sensor arrays; Time frequency analysis; Vectors; White noise; Wideband;
Journal_Title :
Signal Processing Letters, IEEE
