Development, performance analysis, and experimental evaluation of beamspace Root-MUSIC
- 1 January 1991
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 15206149,p. 3049-3052 vol.5
- https://doi.org/10.1109/icassp.1991.150098
Abstract
A computationally efficient beamspace implementation of Root-MUSIC is developed. The algorithm exploits the common out-of-band nulls property exhibited by discrete Fourier transform (DFT) beams. For each set of B successive DFT beams encompassing a given spatial sub-band, the major computations are an eigenvalue decomposition of the real part of the B*B beamspace sample correlation matrix and the rooting of a polynomial of order 2B-2. Virtual tapering is effected by summing weighted DFT beams to yield reduced out-of-band sidelobes while retaining the common out-of-band nulls property. Experimental results are presented involving data obtained from an N=32 element uniformly-spaced, linear array operating at X-band.Keywords
This publication has 5 references indexed in Scilit:
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