Title:
目標信号分離装置、パッシブレーダー装置および目標信号分離方法
Document Type and Number:
Japanese Patent JP7234803
Kind Code:
B2
Abstract:
To provide a target signal separation device, a passive radar device, and a target signal separation method that can remove a clutter signal from a continuous wave reception signal, and separate a signal from a moving target.SOLUTION: A target signal separation device 10 according to the present invention includes: an acquisition unit 11 that acquires a reception signal and an observation parameter; an analysis unit 12 that predicts a noise signal corresponding to the current observation parameter acquired by the acquisition unit 11 using a prediction formula obtained by machine learning using past reception signals and past observation parameters when there is no target as teacher data; and an output unit 13 that performs processing to find difference between the current reception signal acquired by the acquisition unit 11 and the noise signal predicted by the analysis unit 12, and separates a target signal when the difference exceeds a predetermined threshold value.SELECTED DRAWING: Figure 1
Inventors:
Hayashi Eiji
Taro Yoshida
Taro Yoshida
Application Number:
JP2019100476A
Publication Date:
March 08, 2023
Filing Date:
May 29, 2019
Export Citation:
Assignee:
NEC
International Classes:
G01S7/292; G01S13/46
Domestic Patent References:
| JP2015036628A | ||||
| JP2016003975A |
Foreign References:
| WO2015083348A1 | ||||
| CN106872957A |
Other References:
中迫 昇 ほか,"風速情報を入力とする線形・非線形モデルに基づく風雑音の推定と除去",日本音響学会研究発表会議講演論文集,3-7-2,社団法人日本音響学会 ,2002年03月18日, pp.823-824,学術文献等2011-00882-049
Attorney, Agent or Firm:
Ken Ieiri