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BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Penn Engineering Events - ECPv6.18.0//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Penn Engineering Events X-ORIGINAL-URL:https://seasevents.nmsdev7.com X-WR-CALDESC:Events for Penn Engineering Events REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20180311T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20181104T060000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20190310T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20191103T060000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20200308T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20201101T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=America/New_York:20190905T103000 DTEND;TZID=America/New_York:20190905T113000 DTSTAMP:20190823T194000Z CREATED:20190823T194000Z LAST-MODIFIED:20190823T194000Z UID:1892-1567679400-1567683000@seasevents.nmsdev7.com SUMMARY:"Compressive Sensing: From Algorithms to Circuits" DESCRIPTION:Compressive Sensing is an acquisition technique which relies on the sparsity of the underlying signals\, to enable sampling below the classical Nyquist rate. To do so\, the signals must be acquired in an incoherent way with respect to the sparsity basis\, which is classically obtained in practice by acquiring the signal through projection on a random PAM signal with i.i.d. symbols. \nWe first show that advantages with respect to the above “classical” compressive sensing approach can be achieved by exploiting the fact that\, while sparsity is not under a system designer’s control\, incoherence is\, and therefore flexibility and creativity in implementing compressed sensing systems rely on the strategic design and control of incoherence. To accomplish this\, we then assume that the signals to be acquired are not only sparse\, but also localized\, e.g. for nearly all practical applications\, the signals of interest preferentially occupy a given subspace (for instance they are all low-pass or high-pass in the frequency domain). We show how\, for localized signals\, the acquisition sequences can be designed to maximize their “rakeness\,” that is\, to maximize their capability to collect the energy of the samples during the acquisition phase and increase by several dBs the average SNR achieved in signal reconstruction. \nWe will then describe the design in a 0.18um CMOS technology of the most popular architecture for implementing A/D converters based on compressive sensing\, namely the Random Modulation Pre-Integration (RMPI). We will show that the direct circuit implementation of the classical acquisition scheme exploiting i.i.d sequences leads to a highly suboptimal solution\, and one needs therefore to follow a synergetic design between algorithm-circuit-system. We will show how the use of rakeness-based CS acquisition sequences can reduce the complexity of the implemented A/D from 16 to 8 stages for processing ECG signals and from 64 to 24 for EMG ones. Furthermore\, rakeness-derived sequences also eliminate the necessity for pre- or post-acquisition filtering stages intended to suppress high frequency artifacts and 60-Hz power-line noise interference. \nFinally\, we will show how the use of CS guarantee some level of privacy in information transmission\, which makes the CS signal acquisition paradigm even more suitable for applications in the area of Body Area Networks and Internet of Things. URL:https://seasevents.nmsdev7.com/event/compressive-sensing-from-algorithms-to-circuits/ LOCATION:PICS Conference Room 534 – A Wing \, 5th Floor\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States END:VEVENT END:VCALENDAR