A farrow-structure-based multi-mode transmultiplexer

Author

Eghbali, Amir ; Johansson, Håkan ; Löwenborg, Per

Author_Institution

Dept. of Electr. Eng., Linkoping Univ., Linkoping

fYear

2008

fDate

18-21 May 2008

Firstpage

3114

Lastpage

3117

Abstract

This paper introduces a multi-mode transmultiplexer (TMUX) consisting of Farrow-based variable integer sampling rate conversion (SRC) blocks. The polyphase components of general interpolation/decimation filters are realized by the Farrow structure making it possible to achieve different linear-phase finite-length impulse response (FIR) lowpass filters at the cost of a fixed set of subfilters and adjustable fractional delay values. Simultaneous design of the subfilters, to achieve overall approximately Nyquist (Mth-band) filters, are treated in this paper. By means of an example, it is shown that the subfilters can be designed so that for any desired range of integer SRC ratios, the TMUX can approximate perfect recovery as close as desired.

Keywords

FIR filters; transmultiplexing; farrow-structure-based multi-mode transmultiplexer; linear-phase finite-length impulse response lowpass filters; variable integer sampling rate conversion blocks; Bandwidth; Bit rate; Delay; Finite impulse response filter; Frequency conversion; Interpolation; Multiaccess communication; Sampling methods; Telecommunication standards; Time division multiple access; Multi-mode communications; sampling rate conversion; transmultiplexers;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on

Conference_Location

Seattle, WA

Print_ISBN

978-1-4244-1683-7

Electronic_ISBN

978-1-4244-1684-4

Type

conf

DOI

10.1109/ISCAS.2008.4542117

Filename

4542117