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A multimode transmultiplexer structure
DOI:10.1109/TCSII.2008.918934.png)
摘要
En 中文
This paper introduces a multimode transmultiplexer (TMUX) structure capable of generating a large set of user-bandwidths and center frequencies. The structure utilizes fixed integer sampling rate conversion (SRC) blocks, Farrow-based variable interpolation and decimation structures, and variable frequency shifters. A main advantage of this TMUX is that it needs only one filter design beforehand. Specifically, the filters in the fixed integer SRC blocks as well as the subfilters of the Farrow structure are designed only once. Then, all possible combinations of bandwidths and center frequencies are obtained by properly adjusting the variable delay parameter of the Farrow-based filters and the variable parameters of the frequency shifters. The paper includes examples for demonstration. It also shows that, using the rational SRC equivalent of the Farrow-based filters, the TMUX can be described in terms of conventional multirate building blocks which may be useful in further analysis of the overall system.
Keyword:
multimode communications
transmultiplexers (TMUXs)
sampling rate conversion (SRC)
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期刊
I
IF:
4.9
论文数:
8.8K
被引数:
2.5W
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引用论文
On the design of high-complexity cosine-modulated transmultiplexers based on the frequency-response masking approach基于频率响应掩蔽方法的高复杂度余弦调制跨复用器的设计
Linear-phase FIR interpolation, decimation, and Mth-band filters utilizing the farrow structure利用farrow结构的线性相位FIR插值,抽取和m带滤波器

