Title :
Broadband Beamforming of Bandpass Plane Waves using 2D FIR Trapezoidal Filters at Baseband
Author :
Gunaratne, T.K. ; Bruton, L.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta.
Abstract :
A new method is proposed for broadband beamforming of two-dimensional (2D) spatio-temporal (ST) bandpass plane waves (PWs) using a complex 2D FIR filter structure having a trapezoidal-shaped passband at baseband and achieves the minimum possible temporal sampling rate for a given bandwidth. Experimental results show that this method is capable of enhancing 2D broadband bandpass ST PWs according to their directions of arrival (DOAs) in the presence of severe co-channel interference
Keywords :
FIR filters; band-pass filters; cochannel interference; direction-of-arrival estimation; 2D FIR trapezoidal filters; bandpass plane waves; baseband filter; broadband beamforming; co channel interference; directions of arrival; passband filter; spatio temporal; temporal sampling rate; Array signal processing; Band pass filters; Baseband; Finite impulse response filter; Frequency; Passband; Sampling methods; Sensor arrays; Signal processing; Signal sampling;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342529
