|Compressed Sensing Analog to Information Converter|
TITLE: Input Feature Correlated Asynchronous Sampling Analog to Information Converter
Advisor: Sameer Sonkusale
Researcher: Ritika Agarwal, Mike Trakimas
In most biomedical and energy constrained sensing applications, it is futile to digitize the entire signal waveform and transmit the entire data wirelessly, due to the limited power available for sensing and transmission. A more clever approach is to sample the data only when needed. This has led us to utilize asynchronous sampling approach with adaptive thresholds for sampling the data in a very power efficient manner. In most applications, the digital data is compressed and processed to extract important features from the signal. If this could be performed directly at the source, it could further save power and processing requirements
We have shown input feature correlated sampling asynchronous A/D converter for direct extraction of QRS complex from ECG waveforms as proof of concept.