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The progressive dynamic focusing correction technique (PROFOC) has been recently proposed as an efficient methodology to beamformer implementation. A single bit per focus allows determining the sampling instant at every array channel with high timing resolution to get wide dynamic range images. However, this requires a separate sampling clock generator for every array element, while most state of...
This work presents a beamformer based on standard LVDS 12-bit analog-to-digital converters, which deliver the samples serially over a differential pair. The bit stream is synchronized and converted to a sequence of words in a FPGA. Beamforming is then carried out following the progressive focusing correction technique described in a previous work. The low pin count of serial converters and the FPGA...
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