標題: Periodically nonuniform sampling of bandpass signals
作者: Lin, YP
Vaidyanathan, PP
交大名義發表
National Chiao Tung University
公開日期: 1-Mar-1998
摘要: It is known that a continuous time signal x(t) with Fourier transform X(nu) band-limited to u < Theta/2 can be reconstructed from its samples x(T(o)n) with T-o = 2 pi/Theta. In the case that X(nu) consists Of two bands and is band-limited to nu(o) < u < nu(o) + Theta/2, successful reconstruction of x(t) from x(T(o)n) requires an additional condition on the band positions, When the two bands are not located properly, Kohlenberg showed that we can use two sets of uniform samples, x(2T(o)n) and x(2T(o)n+d(1)), with average sampling period T-o, to recover x(t). Because two sets of uniform samples are employed, this sampling scheme is called Periodically Nonuniform Sampling of second order [PNS(2)], In this paper, we show that PNS(2) can be generalized and applied to a wider class, Also, Periodically Nonuniform Sampling of Lth-order [PNS(L)] will be developed and used to recover a broader class of band-limited signals, Further generalizations will be made to the two-dimensional case and discrete time case.
URI: http://dx.doi.org/10.1109/82.664240
http://hdl.handle.net/11536/32744
ISSN: 1057-7130
DOI: 10.1109/82.664240
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING
Volume: 45
Issue: 3
起始頁: 340
結束頁: 351
Appears in Collections:Articles