https://jjcit.org/paper/80
AN EIGEN-APPROACH FOR JOINT ESTIMATION OF DIRECTION-OF-ARRIVAL AND FREQUENCY OF AN UNKNOWN NUMBER OF SIGNALS
10.5455/jjcit.71-1573489319
Thabet Mismar
Direction-of-arrival (DOA),Antenna arrays,Eigenvalues,Eigenvectors,Frequency estimation.
419
109
11-Nov.-2019
31-Dec.-2019 and 8-Jan.-2020
3-Feb.-2020
An accurate method for estimating the direction-of-arrival (DOA) jointly with the frequencies of an unknown number
of source signals is proposed using the Eigen-approach. Using the minimum eigenvalues of the autocorrelation
matrices produces both the DOA and the corresponding frequencies.
By moving the roots produced from the eigenvector one-by-one, the angular location is first found. The frequency is
then estimated using the same procedure. Finally, the frequency is used with the angular location to estimate the DOA
angle.
The results show an accurate estimation of source signalsâ€™ DOA and frequency in the presence of different levels of
noise.