数字地面电视广播用非矩形点阵插值二维滤波器的设计

2006 International Symposium on Intelligent Signal Processing and Communications Pub Date : 2006-12-01 DOI:10.1109/ISPACS.2006.364753

Y. Sakaguchi, M. Kurosaki, Hiroshi Ochi, Hanae Sadamichit, Atsushi Shimizu, Kaihei Kuwata

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引用次数: 0

摘要

我们研究了数字地面电视广播(DTTB)中带有分散导频(SPs)的信道估计和带有二维(2D)滤波器的接收机的性能。高精度的插值是必要的，因为我们使用非矩形插入到发射信号中的SPs来进行信道均衡。这种插值是用一个具有非矩形光谱的二维滤波器执行的。然而，二维滤波器的生成涉及大量的计算复杂度。我们提出了一种通过设计可分离的二维滤波器来降低计算复杂度的方法。仿真结果表明，本文提出的方法与传统方法的有效性进行了比较

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Design of Interpolated Two-Dimensional Filters with Nonrectangular Lattice for Digital Terrestrial Television Broadcasting

We investigated channel estimation with scattered pilots (SPs) in digital terrestrial television broadcasting (DTTB) and the performance of a receiver with a two-dimensional (2D) filter. High-accuracy interpolation is necessary because we perform channel equalization with SPs, which are inserted in transmit signals nonrectangularly. This interpolation is performed with a 2D filter that has a nonrectangular spectrum. However, the generation of the 2D filter involves heavy computational complexity. We propose a method of reducing the computational complexity by designing separable 2D filters. In addition, we present simulation results that compare our method with some conventional methods and show its effectiveness

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2006 International Symposium on Intelligent Signal Processing and Communications

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