title: [Design of microvolt T wave alternans detecting system based on wireless and USB communication].
abstract: In this paper, a T wave alternans detection system based on wireless and USB communication is presented. The ECG signal is amplified in the first step. The amplifier has a gain of 2000 and the CMRR is 80dB. Then the signal is sampled with a 12-bit AD converter. At last, the sample result is transmitted to the PC via wireless communication and USB bus. In the PC, the T wave alternans are detected using the spectral method. Results show that this system has high data transmission rate and real time data processing capability, and can realize the detection of T wave alternans.
authors.affiliation: Department of Precision Machinery and Precision Instrumentation, University of Sci. And Tech. of China, Hefei, Anhui 230027, China.
authors.forename: Li-Jie
authors.initials: LJ
authors.lastname: Hunag
authors.forename: Sheng
authors.initials: S
authors.lastname: Yang
authors.forename: Ai-Jun
authors.initials: AJ
authors.lastname: Liu
authors.forename: Ya-Jun
authors.initials: YJ
authors.lastname: Wang
mesh_terms: D000465:Algorithms; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D001185:Artificial Intelligence; D003195:Computer Communication Networks; D004562:Electrocardiography / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D006801:Humans; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation* / Q000379:methods