Blind Adaptive Fractionally-Spaced Linear Equalizer Behavior
盲自适应分数间隔线性均衡器行为
基本信息
- 批准号:9509011
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1995
- 资助国家:美国
- 起止时间:1995-08-01 至 1999-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The central theme of this research is the development of a fuller theoretical description of the behavior of memoryless-error- function (or Bussgang) type blind equalization algorithms, in particular CMA, as used in practice with finite-length, fractional spacing, higher-order (non-constant modulus, non-uniformly distributed) source constellations, (deterministic and stochastic) correlated source time series, and modest channel noise. The initial target is the behavior of fractionally-spaced CMA with a correlated (or periodic) source, which appears capable of causing misbehavior in practice. We plan to use analytical tools from topologically based, algebraic-geometry (in particular Bernstein's theorem, relaxation methods, and Morse theory) non typically associated with the study of adaptive filters in addition to averaging theory tools popular in adaptive systems analysis. The ultimate intent is to convert an expanded theory into situation dependent design guidelines for stepsize, length, fractional- spacing, initialization selection, and failure recovery tricks for the use of CMA as a start-up scheme (with a subsequent switch to decision-direction) for high data throughput applications. We plan to translate our analytical advances on CMA to fractionally-spaced realizations of other blind equalizer algorithms of the memoryless error function class (including refinements to CMA), for which actual operating data can be obtained industrially as for CMA. We also plan to use our behavior insights into CMA to help provide fair comparisons on actual operating data to competing schemes such as symbol-spaced decision feedback equalizers and similar complexity algorithms based on second-order correlation statistics of single-input, multiple- output models of fractionally-spaced equalization.
本研究的中心主题是对无记忆误差函数的行为进行更全面的理论描述(或Bussgang)型盲均衡算法,特别是CMA,如在实践中使用的有限长度、分数间隔、高阶(非恒定模量,非均匀分布)源星座,(确定性和随机性)相关源时间序列和适度信道噪声。 初始目标是具有相关(或周期)源的分数间隔CMA的行为,这似乎能够在实践中引起错误行为。 我们计划使用拓扑为基础的分析工具,代数几何(特别是伯恩斯坦的定理,松弛方法,和莫尔斯理论)非通常与自适应滤波器的研究,除了平均理论工具流行的自适应系统分析。 最终的目的是将扩展的理论转换成用于步长、长度、分数间隔、初始化选择和故障恢复技巧的情况相关的设计准则,用于将CMA用作高数据吞吐量应用的启动方案(随后切换到决策方向)。 我们计划将CMA的分析进展转化为无记忆误差函数类(包括CMA的改进)的其他盲均衡器算法的分数间隔实现,可以在工业上获得CMA的实际操作数据。 我们还计划使用我们对CMA的行为洞察来帮助提供对实际操作数据与竞争方案的公平比较,例如符号间隔判决反馈均衡器和基于分数间隔均衡的单输入多输出模型的二阶相关统计的类似复杂度算法。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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C. Richard Johnson其他文献
Interplay Betweeen Recursive System Identification and Adaptive Filtering in Communication Systems
- DOI:
10.1016/s1474-6670(17)47690-7 - 发表时间:
1994-07-01 - 期刊:
- 影响因子:
- 作者:
C. Richard Johnson - 通讯作者:
C. Richard Johnson
CMA fractionally spaced equalizers: Stationary points and stability under i.i.d. and temporally correlated sources
CMA 分数间隔均衡器:独立同分布下的驻点和稳定性
- DOI:
10.1002/(sici)1099-1115(199803)12:2<135::aid-acs484>3.0.co;2-z - 发表时间:
1998 - 期刊:
- 影响因子:0
- 作者:
J.P. LeBlanc;I. Fijalkow;C. Richard Johnson - 通讯作者:
C. Richard Johnson
C. Richard Johnson的其他文献
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{{ truncateString('C. Richard Johnson', 18)}}的其他基金
US-France Cooperative Research: Exchange on Adaptive Telecommunication Engineering
美法合作研究:自适应电信工程交流
- 批准号:
0233127 - 财政年份:2003
- 资助金额:
-- - 项目类别:
Standard Grant
GOALI: Adaptive DSP in Emerging Communication Systems
GOALI:新兴通信系统中的自适应 DSP
- 批准号:
9802375 - 财政年份:1998
- 资助金额:
-- - 项目类别:
Standard Grant
Adaptive Systems for Equalization of Wireless Multiple Access Communication Channel
无线多址通信信道均衡的自适应系统
- 批准号:
9811297 - 财政年份:1998
- 资助金额:
-- - 项目类别:
Continuing grant
GOALI:Adaptive Active Noise Control: Stability Analysis, Algorithm Development, and Efficient Implementation
目标:自适应主动噪声控制:稳定性分析、算法开发和高效实施
- 批准号:
9528363 - 财政年份:1996
- 资助金额:
-- - 项目类别:
Standard Grant
Qualitative Classification of the Behavior of Poorly ExcitedAdaptive Feedback Systems
不良兴奋自适应反馈系统行为的定性分类
- 批准号:
9022785 - 财政年份:1991
- 资助金额:
-- - 项目类别:
Standard Grant
Blind Adaptive Channel Equalization for QAM Source Signals
QAM 源信号的盲自适应信道均衡
- 批准号:
8921003 - 财政年份:1990
- 资助金额:
-- - 项目类别:
Standard Grant
U.S.-Australia Cooperative Research: Development and Appli- cation of Robust Adaptive Control Theory (Systems and Opera-tion Research)
美澳合作研究:鲁棒自适应控制理论的发展与应用(系统与运行研究)
- 批准号:
8513400 - 财政年份:1986
- 资助金额:
-- - 项目类别:
Standard Grant
Convergence and Robustness Study of Sign-Sign Adaptive IIR Filters
符号自适应IIR滤波器的收敛性和鲁棒性研究
- 批准号:
8608787 - 财政年份:1986
- 资助金额:
-- - 项目类别:
Continuing grant
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