The Scientific World Journal / 2014 / Article / Fig 4

Research Article

An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments

Figure 4

Temporal scalability of ECG signal for lead II, which is the voltage between the (positive) left leg electrode and the right arm electrode, as the number of ELs increases, for the duration of one second. The maximum sampling frequency is 360 Hz; thus, the maximum number of available ELs is 3 ( ).
(a) BL only
(b) BL+EL1
(c) BL+EL1+EL2
(d) BL+EL1+EL2+EL3