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Simplification of MUSIC and ESPRIT by exploitation of cyclostationarity

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1 Author(s)
Gardner, W.A. ; Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA

It is shown that for the problem of multiple-source location using antenna arrays, the algorithms MUSIC and ESPRIT can be simplified by use of the property called cyclostationarity, which is exhibited by modulated signals. The advantages of the modified algorithms are reduction in the required number of array elements and associated reduction in the SVD (singular-value-decomposition) computations. The disadvantages are the requirement of either knowing or measuring frequency parameters, such as carrier frequency or baud rate, and the requirement of longer integration time for correlation measurement, as well as the requirement of measuring a different correlation matrix for each signal of interest

Published in:

Proceedings of the IEEE  (Volume:76 ,  Issue: 7 )