Abstract
In ultrasound dynamic receive beamforming, focusing delays need to be updated for individual focal points, leading to increased hardware complexity. Proposed is a new efficient delay calculation method based on time-sharing bilinear delay interpolation (TS-BDI) to reduce both hardware complexity and focusing delay errors for portable ultrasound systems. The TS-BDI provides 2.5dB improvement in the signal-to-noise ratio compared to the TS-LDI (linear delay interpolation). In addition, the proposed TS-BDI lowers the hardware complexity in the 64-channel digital dynamic receive beamformer compared to the conventional method, i.e. 36.0 reduction in equivalent gate counts. These results indicate that the proposed TS-BDI method could provide better accuracy in focusing delay calculation with reduced hardware complexity for portable ultrasound systems.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 89-91 |
| Number of pages | 3 |
| Journal | Electronics Letters |
| Volume | 47 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 20 2011 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electrical and Electronic Engineering