Title :
On a modified Duvall beamformer
Author :
Chang, B. ; Ahmed, N.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Mexico Univ., Albuquerque, NM, USA
Abstract :
The authors are concerned with the use of derivative null constraints in an adaptive beamformer in the spatial and frequency domains with respect to the Duvall beamformer to obtain a modified Duvall beamformer. Simulation results demonstrate that the modified beamformer´s performance is improved under the following conditions:L jammer frequencies are the same as the desired signal; jammer directions are different from the desired signal; and jammer directions and frequencies are known
Keywords :
antenna theory; signal processing; adaptive beamformer; antenna theory; derivative null constraints; jammer frequencies; modified Duvall beamformer; signal processing; Delay effects; Delay lines; Filters; Frequency domain analysis; Hafnium; Jamming; Least squares approximation; Master-slave; Sensor arrays; Signal processing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.197248
