Title :
Multiresolution ESPRIT algorithm
Author :
Lemma, Aweke N. ; Van der Veen, Alle-Jan ; Deprettere, Ed F.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
6/1/1999 12:00:00 AM
Abstract :
Multiresolution 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, and a long baseline is preferred for accuracy. The MR-ESPRIT algorithm allows the combination of both estimates. The ratio of the longest baseline to the shortest one is a measure of the gain in accuracy. Because of various factors, including noise, signal bandwidth, and measurement error, the achievable gain in accuracy is bounded
Keywords :
antenna arrays; array signal processing; direction-of-arrival estimation; linear antenna arrays; measurement errors; noise; signal resolution; DOA; MR-ESPRIT algorithm; accuracy gain; direction finding algorithm; half wavelength baseline; linear antenna arrays; long baseline; measurement error; multiple baselines; multiresolution ESPRIT algorithm; noise; short baseline; shortest to longest baseline ratio; signal bandwidth; Antenna arrays; Antenna measurements; Direction of arrival estimation; Directive antennas; Frequency estimation; Phased arrays; Sampling methods; Signal processing algorithms; Signal resolution; Yield estimation;
Journal_Title :
Signal Processing, IEEE Transactions on
