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Subspace-based estimation of time of arrival and Doppler shift for a signal of known waveform

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1 Author(s)
Latyshev, V. ; Moscow aviation Inst. (state Tech. Univ.), Moscow

The subspace-based technique is used for the estimation of the time of arrival and Doppler shift of a signal of the known waveform. The tool to find required subspaces is a special orthogonal decomposition of received data. It allows concentrate Fisher information about desired parameter in a small number of the first terms of the decomposition. This approach offers a low-dimensional vector of sufficient statistics. It leads to computationally efficient Bayes estimation. Besides, it results in expanding of the SNR range for effective ML-estimating. At last, we can obtain independent time arrival and Doppler shift estimations on the base generalized eigenvectors of the matrix pair.

Published in:

Digital Communications - Enhanced Surveillance of Aircraft and Vehicles, 2008. TIWDC/ESAV 2008. Tyrrhenian International Workshop on

Date of Conference:

3-5 Sept. 2008