SI-JADE: Joint angle and delay estimation using shift-invariance properties
A. van Veen · Research Repository (Delft University of Technology) · 1997
In a multipath communication scenario, it is often relevant to estimate the directions and relative delays of each multipath ray.We derive a closed-form subspace-based algorithm for the joint high-resolution estimation of both angles and delays from measured impulse response data, assuming knowledge of the modulation pulse shape function.The algorithm uses a 2-D ESPRIT-like shift-invariance technique to separate and estimate the phase shifts due to delay and direction-of-incidence, with automatic pairing of the two parameter sets.