Title:
アレーアンテナおよびアレーアンテナの信号処理装置
Document Type and Number:
Japanese Patent JP7150388
Kind Code:
B2
Abstract:
To detect a plurality of targets with high accuracy using an array antenna including a virtual antenna element, and provide a signal processing device of this array antenna.SOLUTION: Provided is an array antenna in which a plurality of arrangement positions Pto Pare provided at each prescribed interval d, and actual antenna elements F, F, F, F, Fare disposed at some arrangement positions P, P, P, P, Pout of these arrangement positions and actual antenna elements are not disposed at the other arrangement positions P, P, P. The actual antenna elements F, F, F, F, Fare disposed in such a way that independent components in a covariance matrix of position numbers of their arrangement positions are contiguous, and the independent components have higher redundancy as their numbers (indices) become smaller.SELECTED DRAWING: Figure 4
Inventors:
Yukinobu Tokieda
Takuma Nishiyama
Yasuaki Oda
Takuma Nishiyama
Yasuaki Oda
Application Number:
JP2017196193A
Publication Date:
October 11, 2022
Filing Date:
October 06, 2017
Export Citation:
Assignee:
Japan Radio Co., Ltd.
International Classes:
G01S7/02; H01Q3/30; H01Q21/08; H04B7/08
Domestic Patent References:
| JP2017090229A |
Foreign References:
| US20160116582 |
Other References:
Ma, Wing-Kin et al.,DOA Estimation of Quasi-Stationary Signals With Less Sensors Than Sources and Unknown Spatial Noise Covariance: A KhatriRao Subspace Approach,IEEE Transactions on Signal Processing,米国,IEEE,2009年10月20日,Volume: 58, Issue: 4,2168-2180
Attorney, Agent or Firm:
Narutokirou Harashima