Title :
Joint angle-frequency estimation using multi-resolution ESPRIT
Author :
Lemma, Aweke N. ; Van der Veen, Alle-Jan ; Deprettere, Ed F.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
Abstract :
Multi-resolution ESPRIT is an extension of the ESPRIT direction finding algorithm to antenna arrays with multiple baselines. A short (half wavelength) baseline is necessary to avoid aliasing, a long baseline is preferred for accuracy. The MR-ESPRIT algorithm allows to combine both estimates. The same algorithm can be used for multi-resolution frequency estimation, by combining two different sampling frequencies. We show how this can be used to construct a joint angle-frequency estimator
Keywords :
array signal processing; direction-of-arrival estimation; frequency estimation; linear antenna arrays; signal resolution; signal sampling; ESPRIT direction finding algorithm; accuracy; aliasing; data matrix; half wavelength baseline; joint angle-frequency estimation; linear antenna arrays; long baseline; multi-resolution ESPRIT; multi-resolution frequency estimation; multiple baselines; sampling frequencies; short baseline; Antenna arrays; Delay estimation; Directive antennas; Frequency estimation; Linear antenna arrays; Phase estimation; Phased arrays; Sampling methods; Vectors; Yield estimation;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.681447