Improvement on the estimation of covariance matrices by incorporating cross-correlations
- 1 January 1990
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Addresses the problem of improving the estimate of a covariance matrix from one set of multivariate random processes when there exist non-zero cross-correlations with another set of random processes. The improvement is obtained by linearly combining the first set's sample covariance matrix with covariance matrices predicted via the cross-correlations. The superiority of the proposed method is demonstrated by an application to spatial smoothing for the DOA estimation of coherent narrowband signals using a uniform linear array.Keywords
This publication has 8 references indexed in Scilit:
- Improved spatial smoothing techniques for DOA estimation of coherent signalsIEEE Transactions on Signal Processing, 1991
- Multiple broad-band source location using steered covariance matricesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- Forward/backward spatial smoothing techniques for coherent signal identificationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- A high resolution direction-of-arrival algorithm for narrow-band coherent and incoherent sourcesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1988
- An improved spatial smoothing technique for bearing estimation in a multipath environmentIEEE Transactions on Acoustics, Speech, and Signal Processing, 1988
- ESPRIT--A subspace rotation approach to estimation of parameters of cisoids in noiseIEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
- Coherent signal-subspace processing for the detection and estimation of angles of arrival of multiple wide-band sourcesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1985
- On spatial smoothing for direction-of-arrival estimation of coherent signalsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1985