Tseng Yun-Hua, Chen Yuan-Ho, Lu Chih-Wen
Department of Engineering and System Science, National Tsing Hua University, Hsinchu 300, Taiwan.
Department of Electronic Engineering, Chang Gung University, Taoyuan 333, Taiwan.
Sensors (Basel). 2017 Oct 9;17(10):2288. doi: 10.3390/s17102288.
Compressed sensing (CS) is a promising approach to the compression and reconstruction of electrocardiogram (ECG) signals. It has been shown that following reconstruction, most of the changes between the original and reconstructed signals are distributed in the Q, R, and S waves (QRS) region. Furthermore, any increase in the compression ratio tends to increase the magnitude of the change. This paper presents a novel approach integrating the near-precise compressed (NPC) and CS algorithms. The simulation results presented notable improvements in signal-to-noise ratio (SNR) and compression ratio (CR). The efficacy of this approach was verified by fabricating a highly efficient low-cost chip using the Taiwan Semiconductor Manufacturing Company's (TSMC) 0.18-μm Complementary Metal-Oxide-Semiconductor (CMOS) technology. The proposed core has an operating frequency of 60 MHz and gate counts of 2.69 K.
压缩感知(CS)是一种用于心电图(ECG)信号压缩与重构的很有前景的方法。研究表明,重构后,原始信号与重构信号之间的大部分变化分布在Q、R和S波(QRS)区域。此外,压缩率的任何增加都倾向于增大变化的幅度。本文提出了一种将近精确压缩(NPC)算法和CS算法相结合的新方法。仿真结果表明,该方法在信噪比(SNR)和压缩率(CR)方面有显著提高。通过使用台积电(TSMC)的0.18μm互补金属氧化物半导体(CMOS)技术制造一种高效低成本芯片,验证了该方法的有效性。所提出的内核工作频率为60 MHz,门数为2.69 K。