Estimation of nominal direction of arrival and angular spread using an array of sensors
Signal Processing - Special issue on subspace methods, part I: array signal processing and subspace computations
Signal Processing - Special section: Hans Wilhelm Schüßler celebrates his 75th birthday
Approximate maximum likelihood estimators for array processing inmultiplicative noise environments
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Decoupled estimation of DOA and angular spread for a spatiallydistributed source
IEEE Transactions on Signal Processing
Broadband DOA estimation using “Spatial-Only” modelingof array data
IEEE Transactions on Signal Processing
A broadband maximum likelihood imager for a class of extendedspace-time separable sources
IEEE Transactions on Signal Processing
Wideband source location through frequency-dependent modeling
IEEE Transactions on Signal Processing
Low-complexity estimators for distributed sources
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Maximum-Likelihood Direction Finding of Wide-Band Sources
IEEE Transactions on Signal Processing
Estimation of directions of arrival of multiple scattered sources
IEEE Transactions on Signal Processing
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The problem of estimating the direction of arrival (DOA) of wideband sources has always been of interest to the researchers because of its importance in many practical scenarios. The rising demand of communicating at higher data rates can be met by using wideband signals [R.U. Nabar, A. Paulraj, D.A. Gore, H. Bolcskei, An overview of MIMO communications-a key to gigabyte wireless, Proc. IEEE 92 (February 2004) 198-218]. Multipaths, scatterers etc., present near the transmitter render spatial bandwidth to these wideband signals. Traditional DOA estimation techniques, designed assuming point sources, result in serious performance degradation when applied to these wideband sources. This paper talks about the DOA estimation of spatially spread wideband sources i.e. sources having both spatial and temporal bandwidth. The interesting aspect of the approach presented is the usage of ''spatial only'' observations to estimate the DOA of both wideband point sources and wideband spread sources. Numerical simulation results verify the validity of the proposed method.