BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Asia/Kolkata BEGIN:STANDARD DTSTART:19451014T230000 TZOFFSETFROM:+0630 TZOFFSETTO:+0530 TZNAME:IST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20130221T071634Z UID:6D257B66-CD42-1030-AD29-0050568D3657 DTSTART;TZID=Asia/Kolkata:20130222T170000 DTEND;TZID=Asia/Kolkata:20130222T180000 DESCRIPTION:Dept of EE announces an IEEE Seminar -------------------------- ---------- Dr. Animesh Kumar (I.I.T. Bombay) will speak on "Distributed A/ D conversion of bandlimited fields" Where: DA 229\, ACES Building\, Dept o f EE When: Friday\, Feb 22\, 2013 What Time : 5 PM Refreshments will be se rved at 4:45 PM. All are cordially invited. Pradeep Kumar K __________ EE Seminar co-ordinator ____________ Pradeep Kumar K Asst. Professor Dept. of Electrical Engineering I.I.T. Kanpur\, India Ph: 91-512-259 7570 Fax: 91- 512-259 0063\n\nCo-sponsored by: Dr. Kumar Vaibhav Srivastava\n\nSpeaker(s ): \, \, \, \n\nAgenda: \nTITLE: Distributed A/D conversion of bandlimited fields ABSTRACT: Remote sensing of a physical field using a distributed a rray of sensors is of interest. Due to underlying physical laws a physical field can be modeled as a smooth bandlimited field. The sampling and reco nstruction of a bandlimited field\, with constraints on quantizer accuracy is studied. Both deterministic and stochastic field models are considered . For stochastic fields\, results are established in the almost-sure sense . Two principles will be presented in this talk. If the field is noiseless \, a bit-conservation principle is discovered. The feasibility of having a flexible tradeoff between the oversampling rate (sensor density) and the analog-to-digital converter (ADC) precision\, while achieving an exponenti al accuracy in the number of bits per Nyquist-interval is demonstrated by this principle. On the other hand\, if the field is affected by additive i ndependent Gaussian noise\, a quantizer-precision indifference principle i s discovered. According to this principle\, the scaling law for distortion (mean-squared error) is unaffected by quantizer precision. If N is the ov ersampling ratio with respect to the Nyquist rate\, then the optimal law f or distortion is O(1/N) and it can be achieved by single-bit precision qua ntizers. [The bit-conservation principle is joint work with Prakash Ishwar (ECE\, Boston University) and Kannan Ramchandran (EECS\, University of Ca lifornia\, Berkeley). The quantizer precision-indifference principle is jo int work with Vinod Prabhakaran (TIFR Bombay\, Mumbai).] BIO: Animesh Kuma r (PhD 2008\, University of California\, Berkeley) obtained his BTech degr ee from IIT Kanpur\, and his MS and PhD degrees from the University of Cal ifornia at Berkeley in 2003 and 2008\, respectively. Since 2009 he is an A ssistant Professor in the Electrical Engineering Department at IIT Bombay. His current research interests include sampling theory\, quantization\, s tatistical and distributed signal processing. REFERENCES: 1. http://arxiv. org/abs/0707.1063 2. http://arxiv.org/abs/1211.6598\n\nRoom: DA 229\, Bldg : ACES\, Department of Electrical Engineering\, Indian Institute of Techno logy Kanpur\, Kanpur\, Uttar Pradesh\, India\, 208016 LOCATION:Room: DA 229\, Bldg: ACES\, Department of Electrical Engineering\, Indian Institute of Technology Kanpur\, Kanpur\, Uttar Pradesh\, India\, 208016 ORGANIZER:kvs@iitk.ac.in SEQUENCE:1 SUMMARY:IEEE Seminar - Distributed A/D conversion of bandlimited fields URL;VALUE=URI:https://events.vtools.ieee.org/m/17077 X-ALT-DESC:Description: <br /> Dept of EE announces an IEEE Seminar\n -- ----------------------------------\n\nDr. Animesh Kumar (I.I.T. Bombay)\n\ nwill speak on\n\n"Distributed A/D conversion of bandlimited fields"\n\nWh ere: DA 229\, ACES Building\, Dept of EE\nWhen: Friday\, Feb 22\, 2013\nWh at Time : 5 PM\n\n\nRefreshments will be served at 4:45 PM.\n\nAll are cor dially invited.\n\nPradeep Kumar K\n__________\nEE Seminar co-ordinator\n_ ___________\nPradeep Kumar K\nAsst. Professor\nDept. of Electrical Enginee ring\nI.I.T. Kanpur\, India\nPh: 91-512-259 7570\nFax: 91-512-259 0063<br /><br />Agenda: <br />TITLE: Distributed A/D conversion of bandlimited fi elds\n\nABSTRACT:\n\nRemote sensing of a physical field using a distribute d array of sensors is\nof interest. Due to underlying physical laws a phys ical field can be modeled\nas a smooth bandlimited field. The sampling and reconstruction of a\nbandlimited field\, with constraints on quantizer ac curacy is studied. Both\ndeterministic and stochastic field models are con sidered. For stochastic\nfields\, results are established in the almost-su re sense.\n\nTwo principles will be presented in this talk. If the field i s noiseless\, a\nbit-conservation principle is discovered. The feasibility of having a\nflexible tradeoff between the oversampling rate (sensor dens ity) and the\nanalog-to-digital converter (ADC) precision\, while achievin g an exponential\naccuracy in the number of bits per Nyquist-interval is d emonstrated by this\nprinciple. On the other hand\, if the field is affect ed by additive\nindependent Gaussian noise\, a quantizer-precision indiffe rence principle is\ndiscovered. According to this principle\, the scaling law for distortion\n(mean-squared error) is unaffected by quantizer precis ion. If N is the\noversampling ratio with respect to the Nyquist rate\, th en the optimal law\nfor distortion is O(1/N) and it can be achieved by sin gle-bit precision\nquantizers.\n\n[The bit-conservation principle is joint work with Prakash Ishwar (ECE\,\nBoston University) and Kannan Ramchandra n (EECS\, University of California\,\nBerkeley). The quantizer precision-i ndifference principle is joint work with\nVinod Prabhakaran (TIFR Bombay\, Mumbai).]\n\nBIO: Animesh Kumar (PhD 2008\, University of California\, Be rkeley) obtained\nhis BTech degree from IIT Kanpur\, and his MS and PhD de grees from the\nUniversity of California at Berkeley in 2003 and 2008\, re spectively. Since\n2009 he is an Assistant Professor in the Electrical Eng ineering Department\nat IIT Bombay. His current research interests include \nsampling theory\, quantization\, statistical and distributed signal\npro cessing.\n\nREFERENCES:\n\n1. http://arxiv.org/abs/0707.1063\n2. http://ar xiv.org/abs/1211.6598 END:VEVENT END:VCALENDAR