Title :
Estimation of the parameters and angle-of-arrival of wideband signals on sensor arrays based on the phase differentiation algorithm
Author :
I. Djurovic;A. Ohsumi;H. Ijima
Author_Institution :
Electr. Eng. Dept., Univ. of Montenegro, Podgorica, Serbia
fDate :
6/26/1905 12:00:00 AM
Abstract :
Phase differentiation algorithms represent a powerful tool for estimation of polynomial phase wideband signals parameters. They are used for development of a suboptimal algorithm for estimation of parameters of wideband signals received on a linear sensor array. The proposed suboptimal method is considered in the case of linear FM signal and compared with the chirp-beamformer approach. The proposed approach behaves slightly worse than the later. However, the chirp beamformer requires a 3D search procedure (or genetic algorithms) that is very consuming comparing to the 1D search for chirp-rate parameter and 2D search for carrier frequency and angle-of-arrival estimation. This approach can be generalized to the polynomial phase signals of higher order.
Keywords :
"Sensor arrays","Phased arrays","Parameter estimation","Phase estimation","Wideband","Chirp","Polynomials","Genetic algorithms","Frequency estimation","Direction of arrival estimation"
Conference_Titel :
OCEANS ´04. MTTS/IEEE TECHNO-OCEAN ´04
Print_ISBN :
0-7803-8669-8
DOI :
10.1109/OCEANS.2004.1405489