Title :
Real-value IQML/MODE for uniform linear arrays
Author_Institution :
Mission Res. Corp., Fort Collins, CO, USA
Abstract :
In this paper, we describe a real-valued parameterization for IQML or MODE algorithms. The cisoid time series or array snapshot is transformed such that real and imaginary parts of the data vector have the same subspace structure. This transformation is identical to those used in unitary ESPRIT. A representation for this subspace and its orthogonal subspace are defined. It is also shown that the non-triviality constraint in these algorithms is quadratic.
Keywords :
array signal processing; direction-of-arrival estimation; time series; transforms; ESPRIT; IQML algorithm; MODE algorithm; array snapshot; cisoid time series; data matrices; noise subspace parameterization; nontriviality constraint; orthogonal subspace; real-valued data transformation; real-valued parameterization; uniform linear array; Algorithm design and analysis; Direction of arrival estimation; Gaussian noise; Sonar; Statistics; Symmetric matrices; Vectors; White noise;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1197305
