Title :
A broadband focused MVDR beamformer for use with short observation times
Author :
Tang Hui ; Ye, Zhaug ; Jin Ming ; YiNan, Zhao
Author_Institution :
Harbin Inst. of Technol., China
fDate :
Oct. 28 2003-Nov. 1 2003
Abstract :
A focused minimum variance distortionless (MVDR) beamformer for broadband adaptive beamforming is formulated and contrasted with the conventional beamformer. The proposed beamformer involves a preprocessor that focuses the signal spaces at different frequencies to a common one and an MVDR beamformer as the narrowband beamformer following the pre-processor. The merits that result as a consequence are improved computational efficiency of focusing and adaptivity and high beamforming resolution of MVDR with short observation times.
Keywords :
array signal processing; focusing; beamforming resolution; broadband adaptive beamforming; focused minimum variance distortionless beamformer; preprocessor; Covariance matrix; Discrete Fourier transforms; Frequency; Narrowband; Power generation; Sensor arrays; Signal processing; Signal resolution; Space technology; Vectors;
Conference_Titel :
Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 6th International SYmposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-7831-8
DOI :
10.1109/ISAPE.2003.1276765
