Generalised dynamic decimation method using polyphase MACs for ultrasound imaging

作者：Kang Hyungil; Kang Jeeun; Song Tai Kyong^*

来源：Electronics Letters, 2015, 51(6): 451-U122.

DOI：10.1049/el.2014.4133

• electrocardiography
• medical signal processing
• Hilbert transforms
• baseline wander removal
• ECG signals
• electrocardiogram signals
• Hilbert vibration decomposition technique
• HVD
• BW signal
• baseline removal method
• empirical mode decomposition technique
• EMD
• mathematical morphology
• signal-to-noise ratio
• correlation criterion
• ECG recordings
• baseline wander distortions

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.

• 出版日期2015-3-19