Reconstruction of N-th order nonuniformly sampled bandlimited signals using digital filter banks

Authors:
S. K. Sindhi;K. M. M. Prabhu
Affiliations:
-;-
Venue:
Digital Signal Processing
Year:
2013

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Abstract

In this paper, a digital filter bank structure is proposed for the reconstruction of uniformly sampled bandlimited signals from their N-th order nonuniform samples. The proposed filter bank structure is arrived at after incorporating polyphase-domain filtering operations and discrete Fourier transform (DFT) modulation to an existing filter bank framework. In this paper, an idea is also presented, so that uniform samples can be reconstructed from N-th order nonuniform samples using the structures based on recurrent nonuniform sampling. A comparison of the computational complexity and the signal-to-noise ratio (SNR) performance is also given for various structures existing in the literature.