Focused wide-band array processing by spatial resampling

Improved finite samples resampling for unbiased wide-band direction of arrival estimation

“…Although Sidorovich [19] showed satisfactory performance of Friedlander's method, Pham in [20] obtained very poor performance of the Array Manifold Interpolation (AMI) method [18]. Moreover Chen in [24] obtained poor performance using the spatial resampling method as compared to the much better performance reported in [15] and [16].…”

“…An improved resampling formula is proposed that shows superior performance as compared to resampling methods suggested in [15,16]. Based on this improved formula a PF scheme is then proposed.…”

“…Based on this improved formula a PF scheme is then proposed. This proposed schemes is then compared to the conventional PF methods of [15,16] in addition to other wide-band DOA estimation methods. It is shown that the proposed scheme has superior and robust performance and succeeds in situations where all considered wide-band methods fail.…”

“…In this paper, PF by spatial resampling [15,16] is considered. An improved resampling formula is proposed that shows superior performance as compared to resampling methods suggested in [15,16].…”

“…Among array interpolation methods [15][16][17][18], interpolation by spatial resampling is chosen for many reasons. Firstly, the spatial resampling method is very simple and hence can be straightforwardly used for 2D DOA estimation and 3D localization, as compared to the more complex transformations in [17] and [18] whose extension is much more difficult.…”