BatDrone: A 9.83M-focal-points/s 7.76µs-Latency Ultrasound Imaging System with On-Chip Per-Voxel RX Beamfocusing for 7m-Range Drone Applications

📋 论文概要

提出了一种名为BatDrone的超声成像系统，采用片上逐体素接收波束聚焦架构，实现了9.83M焦点/秒的成像速度和7.76µs的低延迟，适用于7米距离的超声成像，解决了传统系统延迟高、处理能力有限的问题。

💡 主要创新点

• 提出片上逐体素接收波束聚焦架构，无需外部处理即可实现高速波束合成，大幅降低延迟。
• 采用高电压开关（HVSW）和时钟控制的高阻态，消除串扰电流并确保晶体管电压不超过1VDDH，提升系统可靠性。

📄 原文摘要

Yilong#Dong1, Miaolin#Zhang1, Zhuoyue#Li1, Kian#Ann#Ng3, Chne-Wuen#Tsai1, Lian#Zhang1, Longyang#Lin4, Liwei#Lin2, Jerald#Yoo1,5 National University of Singapore, Singapore, Singapore University of California, Berkeley, CA 3 Digipen Institute of Technology, Singapore, Singapore 4 Southern University of Science and Technology, Shenzhen, China 5 The N.1 Institute for Health, Singapore, Singapore *Equally-Credited Authors (ECAs) High-Z state controlled by the clock signal to eliminate the crowbar current. The High Voltage Switch (HVSW) ensures the#|VGB| of each transistor does not exceed 1VDDH, and is thus compatible with a standard# CMOS process. During the Charge Reuse (CR) phase,#the HVSW shorts the two electrodes (Fig. 32.1.3(b)); the node transiting H2L replenishes charge to the other node transiting L2H. Differing from [3], the CR period is based on the differential signal regardless of the current direction, thus improving the

👥 作者与机构

Liuhao#Wu*1, Jiaqi#Guo*1, Rucheng#Jiang1, Yande#Peng2, Han#Wu1, Jiamin#Li1,