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JSSC 2025第10期RF & Wireless65nm

Compressive Sensing Photoacoustic Imaging Receiver With Matrix-Vector-Multiplica

本文提出了一种用于可穿戴光声成像设备的压缩感知接收器,通过硬件嵌入压缩感知技术显著降低数据量。
57.5 dB SNDR @20.41MS/s, 3.5nV/(Hz)^1/2噪声, 5.83mW/通道
压缩感知光声成像矩阵向量乘法SAR ADC可穿戴设备
采用矩阵向量乘法(MVM)SAR ADC实现模拟域压缩
支持用户可编程的三元权重
集成两种信号重建方法:快速迭代收缩阈值算法和隐式神经表示学习
Abstract
Wearable photoacoustic imaging devices hold great promise for continuous health monitoring and point-of-care diag- nostics. However, the large data volume generated by high-density transducer arrays presents a major challenge for realizing com- pact and power-e fficient wearable systems. This article presents a photoacoustic imaging receiver (RX) that embeds compressive sensing directly into the hardware to address this bottleneck. The RX integrates 16 AFEs and four matrix-vector-multiplication (M