PROJECT TITLE :
Generalised dynamic decimation method using polyphase MACs for ultrasound imaging
In medical ultrasound imaging, the targeted echo signal is decimated with a finite impulse response filter by a rational factor M/L, the frequency response of that dynamically changes over time. Presented is, an economical structure for dynamic decimation by a programmable rational issue that use a fixed variety of polyphase multiplier-accumulators (MACs) no matter the values of M and L. The proposed structure uses the minimum number of MAC units operating at the input knowledge rate to minimise each power consumption and hardware complexity.
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