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A multichannel sampling method for 2-D finite-rate-of-innovation signals

Mulleti, Satish and Shenoy, Basty Ajay and Seelamantula, Chandra Sekhar (2013) A multichannel sampling method for 2-D finite-rate-of-innovation signals. In: IEEE International Conference on Electronics, Computing and Communication Technologies, JAN 17-19, 2013, Bangalore, INDIA.

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Official URL: http://dx.doi.org/10.1109/CONECCT.2013.6469313

Abstract

We address the problem of sampling and reconstruction of two-dimensional (2-D) finite-rate-of-innovation (FRI) signals. We propose a three-channel sampling method for efficiently solving the problem. We consider the sampling of a stream of 2-D Dirac impulses and a sum of 2-D unit-step functions. We propose a 2-D causal exponential function as the sampling kernel. By causality in 2-D, we mean that the function has its support restricted to the first quadrant. The advantage of using a multichannel sampling method with causal exponential sampling kernel is that standard annihilating filter or root-finding algorithms are not required. Further, the proposed method has inexpensive hardware implementation and is numerically stable as the number of Dirac impulses increases.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to IEEE.
Keywords: Finite Rate of Innovation; 2-D FRI Signals; Multichannel Sampling
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 11 Jul 2013 11:15
Last Modified: 11 Jul 2013 11:15
URI: http://eprints.iisc.ac.in/id/eprint/46834

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