High-Resolution DOA Estimation by Algebraic Phase Unwrapping Algorithm and Its Applications to Communication Systems

代数相位展开算法的高分辨率 DOA 估计及其在通信系统中的应用

• 批准号: 17500139
• 负责人: YAMADA Isao
• 金额: $ 2.3万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17500139/
• 关键词: DOA estimation; Algebraic phase unwrapping; Array Antenna; Adaptive Projecte Subgradient Method; Stereophonic acoustic echo canceling problem; Power control for distributed wireless network systems; Orthogonal Space Time Block Code MIMO System; DS

ln the 1st part of this research project, we study a symbolic algebraic algorithm to estimate the number of Directions of Arrival(DOAs), in a specified range, of multiple signals measured with a uniform linear array(ULA). The proposed algorithm utilizes symbolic integrations, developed recently for the algebraic phase unwrapping problems [Yamada et al., '98 ＆ '02], hence does not require any numerical root finding iterative technique or any numerical integration.In the 2nd part of this project, we study the mathematical methodology for efficient applications of DOA estimates to communication systems. These include for example (a) Generalization of the Adaptive Projected Subgradient Method and its extensive applications to communication systems, (b) Efficient power control for wireless communication network systems, (c) Multiaccess interference reduction in OSTBC-MlMO systems as well as in DS/CDMA systems.

在该研究项目的第一部分中，我们研究了一种符号代数算法，以估计以均匀线性阵列（ULA）测量的多个信号的到达方向（DOA）的数量。提出的算法利用了符号整合，最近为代数相开发的解开问题[Yamada等，'98＆'02]，因此不需要任何数值的根系查找迭代技术或任何数值集成。在该项目的第二部分中，我们研究了该项目的第二种方法，我们研究了Doa的数学方法，以进行数学化的方法，以进行有效的doa估算。其中包括（a）自适应投影的亚级别方法的概括及其在通信系统中的广泛应用，（b）无线通信网络系统的有效功率控制，（c）在OSTBC-MLMO系统中以及DS/CDMA系统中的多频率干扰减少。

项目成果

Robust Capon beamforming by the adaptive projected subgradient method

采用自适应投影次梯度法的鲁棒 Capon 波束形成

• 发表时间: 2006
• 期刊: Proceedings of IEEE ICASSP2006 (In CD-ROM)
• 作者: Konstantinos Slavakis;Masahiro Yukawa;Isao Yamada
• 通讯作者: Isao Yamada

Set-Theoretic DS/CDMA Receivers for Fading Channels by Adaptive Projected Subgradient Method

基于自适应投影次梯度法的衰落信道集合论 DS/CDMA 接收机

• 发表时间: 2005
• 期刊: Proceedings of GLOBECOM 2005 (CD-ROM)
• 作者: Renato L.G.Cavalcante;Masahiro Yukawa;Isao Yamada
• 通讯作者: Isao Yamada

Efficient Fast Stereo Acoustic Echo Cancellation Based on Pairwise Optimal Weight Realization Technique

基于成对最优权重实现技术的高效快速立体声回声消除

• 发表时间: 2006
• 期刊: EURASIP Journal on Applied Signal Processing Article ID 84797
• 作者: Masahiro YUKAWA;Noriaki MURAKOSHI;Isao YAMADA
• 通讯作者: Isao YAMADA

Counting the number of DOAs in specified ranges by algebraic phase unwrapping algorithms

通过代数相位展开算法计算指定范围内的 DOA 数量

• 发表时间: 2005
• 期刊: Proceedings of SITA 2005 (CD-ROM)
• 作者: Kazuhiro Oguchi;Isao Yamada
• 通讯作者: Isao Yamada

Adaptive projected subgradient method and its robust signal processing applications

自适应投影次梯度法及其鲁棒信号处理应用

• 发表时间: 2006
• 期刊: Proceedings of IEEE ISCAS2006 (In CD-ROM)
• 作者: Isao Yamada;Konstantinos Slavakis;Masahiro Yukawa;Renato Cavalcante
• 通讯作者: Renato Cavalcante