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.

PDF Ele_Com_Com_Tec_1_2013.pdf - Published Version Restricted to Registered users only Download (2MB) | Request a copy

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
Publisher:	IEEE
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
Date Deposited:	11 Jul 2013 11:15
Last Modified:	11 Jul 2013 11:15
URI:	http://eprints.iisc.ac.in/id/eprint/46834

Actions (login required)

View Item