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Estimation of multipath parameters in wireless communications

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3 Author(s)
Vanderveen, M.C. ; Sci. Comput. Program, Stanford Univ., CA, USA ; van der Veen, A.-J. ; Paulraj, A.

In a parametric multipath propagation model, a source is received by an antenna array via a number of rays, each described by an arrival angle, a delay, and a fading parameter. Unlike the fading, the angles and delays are stationary over long time intervals. This fact is exploited in a new subspace-based high-resolution method for simultaneous estimation of the angle/delay parameters from multiple estimates of the channel impulse response. A computationally expensive optimization search can be avoided by using an ESPRIT-like algorithm. Finally, we investigate certain resolution issues that take the fact that the source is bandlimited into account

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Signal Processing, IEEE Transactions on  (Volume:46 ,  Issue: 3 )