TY - JOUR
T1 - Time domain implementations of the coherent signal-subspace transformations
AU - Sivanand, S.
AU - Yang, J. F.
AU - Kaveh, Mostafa
PY - 1988
Y1 - 1988
N2 - The authors propose CST (coherent signal-subspace transformation) preprocessors as time domain equivalents of the frequency domain based preprocessing in the coherent signal-subspace method for wideband direction finding in a possible multipath environment using general arrays. The preprocessor consisted of multichannel filters following the sensor array and were able to render real-time capability. The authors introduce two approaches to implementing the focusing in the time domain, based on the principles of Taylor series expansion and least squared error. The time domain preprocessor is realized by a multichannel digital FIR (finite impulse response) filter, thus rendering real-time application. For diagonal transformations, the problem reduces to implementing different delays at each sensor by suitable tapped delay lines. Various tapped delay line filters are proposed, and an error analysis is detailed.
AB - The authors propose CST (coherent signal-subspace transformation) preprocessors as time domain equivalents of the frequency domain based preprocessing in the coherent signal-subspace method for wideband direction finding in a possible multipath environment using general arrays. The preprocessor consisted of multichannel filters following the sensor array and were able to render real-time capability. The authors introduce two approaches to implementing the focusing in the time domain, based on the principles of Taylor series expansion and least squared error. The time domain preprocessor is realized by a multichannel digital FIR (finite impulse response) filter, thus rendering real-time application. For diagonal transformations, the problem reduces to implementing different delays at each sensor by suitable tapped delay lines. Various tapped delay line filters are proposed, and an error analysis is detailed.
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M3 - Conference article
AN - SCOPUS:0024186977
SN - 0736-5861
VL - 2
SP - 573
EP - 577
JO - Conference Record - Asilomar Conference on Circuits, Systems & Computers
JF - Conference Record - Asilomar Conference on Circuits, Systems & Computers
T2 - v 1 (of 2)
Y2 - 31 October 1988 through 2 November 1988
ER -