An iterative virtual-ESPRIT algorithm (IVESPA)
E. Gonen, J.M. Mendel · 2002
An iterative algorithm (IVESPA) for narrow-band direction-finding and waveform recovery is presented which is based on the virtual-ESPRIT (VESPA) of Dogan and Mendel (see IEEE Trans. on Signal Processing, vol.42, no.5, p.1200, 1995). IVESPA can handle the case where the data length is short and some of the sources have very small higher-order statistics compared to others, in which case VESPA needs more data to localize the weak sources. IVESPA can be applied to uncalibrated and arbitrary-shape arrays provided the array has two sensors having identical response-the same requirement as in VESPA. Results of a real data experiment demonstrating IVESPA are presented.