Details

Autor(en) / Beteiligte

• Mulleti, S.
• Ajay Shenoy, Basty
• Seelamantula, C. S.

Titel

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

Ist Teil von

• 2013 IEEE International Conference on Electronics, Computing and Communication Technologies, 2013, p.1-6

Ort / Verlag

IEEE

Erscheinungsjahr

2013

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• 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.