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METHOD AND APPARATUS FOR REMOVING BASELINE WANDER FROM AN ECG SIGNAL
METHOD AND APPARATUS FOR REMOVING BASELINE WANDER FROM AN ECG SIGNAL
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机译：从心电信号中去除基线漂移的方法和装置
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摘要
According to one aspect of the invention, an improved ECG monitor includes a plurality of electrodes to be affixed to a patient's body to pick up ECG signals in an ECG signal band. The electrodes are electrically coupled to a plurality of input amplifiers. At least one analog to digital converter ('ADC') is electrically coupled to the input amplifiers to digitize the ECG signals. A digital baseline wander filter has an internal finite impulse response ('FIR') low pass filter characterized by a substantially trapezoidal impulse response. The baseline wander filter substantially removes a baseline wander signal component having a range of frequency components below the ECG signal band. The ECG waveform output signal is a baseline filtered ECG waveform representing the one or more of the ECG signals. The ECG waveform output signal from the improved ECG monitor is delayed less than 2 seconds from the ECG signals.
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