Exploitation of Modulation Properties For Blind Adaptive Signal Processing
利用调制特性进行盲自适应信号处理
基本信息
- 批准号:8812902
- 负责人:
- 金额:$ 26.13万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1989
- 资助国家:美国
- 起止时间:1989-01-01 至 1992-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Research is being conducted to develop and evaluate algorithms that exploit the properties of randomly modulated sine-wave and pulse-train signals to accomplish detection and time-difference-of-arrival (TDOA) estimation, phase-array direction-of-arrival (DOA) estimation and beam/null-steering signal extraction, and periodically time-variant signal correction. Both single-platform and multiple-platform reception is being considered. The properties being exploited include the spectral self-coherence that results from cyclostationarity, and periodic or constant modulus properties. The algorithms being studied perform blind adaptive signal processing which circumvents the need for training signals, pilot signals, preambles, knowledge of DOA, and so on, which are typically required for conventional adaptive processing. The detection and TDOA algorithms under investigation use FFT-based measurements of auto- and cross-spectral correlation to perform signal- selective detection and TDOA estimation. The phase-array algorithms use singular-value-decomposition and projection of cyclic correlation matrices to accomplish signal-selective DOA estimation and to accomplish beam/null-steering signal extraction by performing spectral self-coherence restoral. The signal correction algorithms use both carrier-modulus and base-band-modulus restoral to adapt periodically time-variant (frequency-shifting) filters for cochannel interference rejection, and correction of multipath and other distortion. Some algorithms employ both self-coherence restoral and modulus restoral. The a priori information required by all the algorithms being investigated is knowledge of at least one frequency of cyclostationarity - typically for the signal of interest - such as a baud rate or carrier frequency and, in some cases, knowledge of such frequencies for both the signal of interest and interfering signals. The research being conducted is based on both theoretical analysis and computer simulations. This research focusses on significant problems and is being conducted by a well qualified researcher. Support is highly recommended.
正在进行研究,以开发和评估算法, 利用随机调制正弦波和脉冲序列的特性 信号完成检测和到达时间差(TDOA) 相位阵列到达方向(DOA)估计, 波束/调零信号提取,以及周期性时变 信号校正 单平台和多平台 正在考虑接收。 被利用的属性包括 由循环平稳性产生的谱自相干,以及 周期性或恒定模量性质。 正在研究的算法 执行盲自适应信号处理,其避免了 训练信号、导频信号、信标、DOA知识等等 这通常是常规自适应处理所需要的。 研究中的检测和TDOA算法使用基于FFT的 自动和交叉频谱相关的测量,以执行信号- 选择性检测和TDOA估计。 相控阵算法 利用循环相关的奇异值分解和投影 矩阵来完成信号选择性DOA估计, 通过执行频谱分析来完成波束/调零信号提取 自相干矩阵 信号校正算法同时使用 载波模和基带模周期性自适应 同信道干扰时变(频移)滤波器 多径和其它失真的抑制和校正。 一些 算法采用自相干矩阵和模矩阵。 所有算法所需的先验信息是 调查的是至少一个频率的知识, 循环平稳性-通常用于感兴趣的信号-例如 波特率或载波频率,在某些情况下, 用于感兴趣的信号和干扰信号的频率。 正在进行的研究是基于理论分析和 计算机模拟 这项研究的重点是重大问题, 由一个合格的研究人员。 强烈建议提供支持。
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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William Gardner其他文献
Guidance System, Kayaking for the Visually Impaired
引导系统,视障人士皮划艇
- DOI:
- 发表时间:
2013 - 期刊:
- 影响因子:0
- 作者:
D. R. Kirtland;Ryan Phife;William Gardner;Amy Johnson - 通讯作者:
Amy Johnson
6.50 SEX AND MEDICATION PRESCRIPTION PATTERNS IN CHILDREN WITH ADHD
- DOI:
10.1016/j.jaac.2019.08.442 - 发表时间:
2019-10-01 - 期刊:
- 影响因子:
- 作者:
Elissar El Sabbagh;Kelly I. Kamimura-Nishimura;Jeffery N. Epstein;Tanya E. Froehlich;James L. Peugh;William B. Brinkman;Rebecca Baum;William Gardner;Joshua M. Langberg - 通讯作者:
Joshua M. Langberg
Ensayo del cribado informatizado de los comportamientos preocupantes de los adolescentes
青少年预防措施的信息化
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:0
- 作者:
J. Stevens;Kelly J. Kelleher;William Gardner;Deena J. Chisolm;Jennifer McGeehan;K. Pajer;Lindsay Buchanan - 通讯作者:
Lindsay Buchanan
Mass asymmetry and tricyclic wobble motion assessment using automated launch video analysis
- DOI:
10.1016/j.dt.2015.11.005 - 发表时间:
2016-04-01 - 期刊:
- 影响因子:
- 作者:
Ryan Decker;Joseph Donini;William Gardner;Jobin John;Walter Koenig - 通讯作者:
Walter Koenig
Improving transitions in care for children and youth with mental health concerns: implementation and evaluation of an emergency department mental health clinical pathway
- DOI:
10.1186/s12913-025-12524-z - 发表时间:
2025-03-31 - 期刊:
- 影响因子:3.000
- 作者:
Alexandra Tucci;Paula Cloutier;Christine Polihronis;Allison Kennedy;Roger Zemek;Clare Gray;Sarah Reid;Kathleen Pajer;William Gardner;Nicholas Barrowman;Mario Cappelli;Mona Jabbour - 通讯作者:
Mona Jabbour
William Gardner的其他文献
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{{ truncateString('William Gardner', 18)}}的其他基金
The Development of Social Complexity in a Mobile Society
移动社会中社会复杂性的发展
- 批准号:
2109945 - 财政年份:2020
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
The Development of Social Complexity in a Mobile Society
移动社会中社会复杂性的发展
- 批准号:
1822559 - 财政年份:2018
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
Computationally Efficient Joint Demodulation For Sensor Arrays
传感器阵列的计算高效联合解调
- 批准号:
0003284 - 财政年份:2000
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
Programmable Blind Adaptive Multivariate Filtering
可编程盲自适应多元滤波
- 批准号:
9412732 - 财政年份:1995
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
Theory and Application of Higher-Order Cyclostationarity
高阶循环平稳性理论与应用
- 批准号:
9112800 - 财政年份:1992
- 资助金额:
$ 26.13万 - 项目类别:
Continuing Grant
Rapidly Converging Computationally Efficient Algorithms For Adaptive Sensor Arrays
快速收敛自适应传感器阵列的高效计算算法
- 批准号:
8213402 - 财政年份:1983
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
Doctoral Dissertation Research in Anthropology
人类学博士论文研究
- 批准号:
7901194 - 财政年份:1979
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
Travel to Attend Nato Asi on Communication Systems and Random Process Theory, Darlington, England, August 8-20, 1977
1977 年 8 月 8 日至 20 日前往英国达灵顿参加 Nato Asi 会议,讨论通信系统和随机过程理论
- 批准号:
7718155 - 财政年份:1977
- 资助金额:
$ 26.13万 - 项目类别:
Standard Grant
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