A Low Cost Quadratic Level ECG Compression Algorithm and Its Hardware Optimization for Body Sensor Network System

被引：10

作者：

Kim, Hyejung ^{[1
]}

Kim, Yongsang ^{[1
]}

Yoo, Hoi-Jun ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea

来源：

2008 30TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-8 | 2008年

关键词：

D O I：

10.1109/IEMBS.2008.4650457

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A low cost quadratic level compression algorithm is proposed for body sensor network system. The proposed algorithm reduces the encoding delay and the hardware cost, while maintaining the reconstructed signal quality. The quadratic compression level determined by the mean deviation value is used to preserve the critical information with high compression ratio. The overall CR is 8.4:1, the PRD is 0.897% and the encoding rate is 6.4Mbps. The 16-bit sensor node processor is designed, which supports the proposed compression algorithm. The processor consumes 0.56nJ/bit at 1V supply voltage with 1MHz operating frequency in 0.25-mu m CMOS process.

引用

页码：5490 / 5493

页数：4