Wavelet Frames and Multiresolution Analysis

Christensen, Ole

doi:10.1201/9781420026511.pt2

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Analysis Of Offset Qpsk Using Redundant Filter Banks1

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2013

2019

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“…As it is well known the design of redundant filter banks is not unique [7]. From the Frame theory, the polyphase components R k (z), k = 0, 1, can be written as [7,8,9]; where A(z) is any system function, and R 0 (z) and R 1 (z) are a particular solution of R 0 (z)E 0 (z)+ R 1 (z)E 1 (z) = z −ℓ . Next section illustrates the design of the filters p d (n) and g(n).…”

Section: Analysis Of Offset Qpsk Using Redundant Filter Banksmentioning

confidence: 99%

Analysis and Design of Offset QPSK Using Redundant Filter Banks

Fernández-Vázquez

Dolecek

2013

J. Phys.: Conf. Ser.

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Abstract. This paper considers the analysis and design of OQPSK digital modulation. We first establish the discrete time formulation, which allows us to find the equivalent redundant filter banks. It is well known that redundant filter banks are related with redundant transformation of the Frame theory. According to the Frame theory, the redundant transformations and corresponding representations are not unique. In this way, we show that the solution to the pulse shaping problem is not unique. Then we use this property to minimize the effect of the channel noise in the reconstructed symbol stream. We evaluate the performance of the digital communication using numerical examples.

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Section: Analysis Of Offset Qpsk Using Redundant Filter Banksmentioning

confidence: 99%