二维QAM旋转不变TCM设计方法的研究
RESEARCH OF THE DESIGN METHOD FOR ROTATIONALLY INVARIANT TRELLIS CODES WITH 2-D QAM
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摘要: 本文在L.F.Wei(1984)的工作基础上,定义了格状码格状图的一般结构,讨论了二维QAM星座的旋转不变格状码的性质,给出了其全部不等价信号安排,从而可以方便地设计旋转不变格状码。
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关键词:
- 编码; 调制; 格状码
Abstract: Based on L. F. Wei s work (1984), the generalized trellis diagram oftrellis codes is defined, then the properties of rotationally invariant trellis codes with two-dimensional QAM constellations are discussed, and all the unequivalent signal assignments are given. Finally, rotationally invariant trellis codes are designed easily. -
G. Uneerboeck, IEEE Trans, on IT, IT-28(1982)1. 55-67.[2]L. F. Wei, IEEE J, of SAC, SAC-2(1984)5, 659-671.[3]L. F. Wei, IEEE J. of SAC, SAC-2(1984)5, 672-686.[4]胡建明,王育民,通信学报,13(1992)3,86-91. -
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