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Generalised dynamic decimation method using polyphase MACs for ultrasound imaging.
- Source :
- Electronics Letters (Wiley-Blackwell); Mar2015, Vol. 51 Issue 5, p451-452, 2p
- Publication Year :
- 2015
-
Abstract
- In medical ultrasound imaging, the focused echo signal is decimated with a finite impulse response filter by a rational factor M/L, the frequency response of which dynamically changes over time. Presented is, an efficient structure for dynamic decimation by a programmable rational factor that use a fixed number of polyphase multiplier‐accumulators (MACs) regardless of the values of M and L. The proposed structure uses the minimum number of MAC units operating at the input data rate to minimise both power consumption and hardware complexity. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00135194
- Volume :
- 51
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Electronics Letters (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 148782527
- Full Text :
- https://doi.org/10.1049/el.2014.4133