Real-time DOA Estimation System by DBF Array Antenna and Its Applications

DBF阵列天线实时DOA估计系统及其应用

• 批准号: 13650403
• 负责人: ARAI Hiroyuki
• 金额: $ 2.05万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650403/
• 关键词: adaptive array antenna; DOA estimation; MUSIC algorithm; ESPRIT algorithm; eigenproblems; FPGA; EPGA; ESRPIT法

We develop a DOA Estimation System by DBF Array Antenna and evaluated its estimation accuracy, operation speed and other characteristics. First we tried an algebraic approach to eigenprobrems for a fast computation of eigenvalues and eigenvectors which are required in DOA estimation. Next, we evaluated various DOA estimation algorithms provided that they are implemented on Fixed-point Digital Device. Finally we implement some DOA estimation algorithms on FPGA-based digital device, and evaluated its performance. We found that the proposed system can estimate DOA within several tens of microseconds, which can be considered as an extremely fast response time. This system will be a fundamental device for future mobile communication systems.

我们研制了一个基于DBF阵列天线的DOA估计系统，并对其估计精度、运算速度等性能进行了评价。首先，我们尝试了一种代数方法的特征值和特征向量的DOA估计所需的快速计算的eigenprobrems。其次，我们评估了各种DOA估计算法，只要它们在定点数字设备上实现。最后在基于FPGA的数字设备上实现了几种DOA估计算法，并对其性能进行了评估。我们发现，所提出的系统可以估计DOA在几十微秒内，这可以被认为是一个非常快的响应时间。该系统将成为未来移动的通信系统的基础设备。

项目成果

Koichi Ichige, Masashi Shinagawa, Hiroyuki Arai: "A Fast Algebraic Approach to the Eigenproblems of Correlation Matrices in DOA Estimation"IEICE Transactions on Communications. E86-B,2. 865-869 (2003)

Koichi Ichige、Masashi Shinakawa、Hiroyuki Arai：“DOA 估计中相关矩阵本征问题的快速代数方法”IEICE Transactions on Communications。

Naoya Matsumoto, Koichi Ichige, Hiroyuki Arai: "Fixed-Point Digital Processing of Recursive Least-Square Algorithm : Toward FPGA Implementation of MMSE Adaptive Array Antenna"Proceedings of The International Conference on Signal Processing and its Applica

Naoya Matsumoto、Koichi Ichige、Hiroyuki Arai：“递归最小二乘算法的定点数字处理：面向 MMSE 自适应阵列天线的 FPGA 实现”信号处理及其应用国际会议论文集

Koichi Ichige, Daisuke Mase, Hiroyuki Arai: "A Novel Adaptive Antenna Array with Tapped Delay Line Using Wavelet-based Frequency Subband Decomposition"Proc.URSI-B International Conference on Electromagnetic Theory. (2004)

Koichi Ichige、Daisuke Mase、Hiroyuki Arai：“使用基于小波的频率子带分解的带抽头延迟线的新型自适应天线阵列”Proc.URSI-B 国际电磁理论会议。

Minseok Kim, Koichi Ichige, Hiroyuki Arai: "Performance Evaluation of FPGA-based Fast DOA Estimator"電子情報通信学会総合大会講演論文集. B-1. (2003)

Minseok Kim、Koichi Ichige、Hiroyuki Arai：“基于 FPGA 的快速 DOA 估计器的性能评估”IEICE 大会记录 (2003)。

Minseok Kim, Koichi Ichige, Hiroyuki Arai: "Design of Jacobi EVD processor based on CORDIC for DOA estimation with MUSIC algorithm"IEICE Transactions on Communications. vol.E85-B, no.12. 2648-2655 (2002)

Minseok Kim、Koichi Ichige、Hiroyuki Arai：“基于 CORDIC 的 Jacobi EVD 处理器设计，用于使用 MUSIC 算法进行 DOA 估计”IEICE Transactions on Communications。