Chirp zeta transform (CZT)digital beamformingTo generate volumetric underwater acoustic images, a planar array of sensors is required to collect the signals coming from a 3-D scene. The method most frequently used to process the acquired signals is a beamforming algorithm. In general, owing to...
This letter considers the possibility of the generation of three-dimensional acoustic images with a limited computational load by considering the extension of Chirp zeta transform beam forming to the case of planar array and near-field conditions. This extension, with a few innovative solutions, allow...
Extension of the chirp scaling algorithm to 3-D near-field wideband radar imaging. Iee Proceedings Radar Sonar & NavigationNIEVES E G; LOPEZ J M; VILLALOBOS C P.Extension of the chirp scaling algorithm to 3-D near-field wideband ra... Gimeno-Nieves,E.,Lopez-Sanchez,... - 《Iee Proceedi...
The single long-length Chirp Zeta Transform (CZT) in the original CZT beamforming is replaced by several CZTs with smaller lengths for different partitions along each dimension. The implementing routine of the algorithm is also optimized. Furthermore, an avenue to evaluate the estimating error for...
CHIRP ZETA TRANSFORM BEAMFORMING FOR THE GENERATION OF 3-D ACOUSTICAL IMAGESPalmese, MariaToni, Giovanni DeTrucco, Andrea