Clock-Less Positioning of Sampling Pulse for Extraction of Critical Information Adding Advantage on Fixed Rate and Level Based Sampling

摘要

This paper is to discuss optimal positioning of sampling pulse for extraction of vital information from signal at critical points using clock-less sampling by online analysis of signal. Using this concept sampling pulses are generated which are less than or equal to minimum Nyquist rate for capturing only critical points without any prior knowledge of signal. This method of sampling technique is applicable for all available signals including signals which are not truly band limited and having sharp frequencies changes. Robust analysis of fixed rate sampling and level based sampling is done by clubbing them with proposed concept in simulation environment.