Title:
SIGNAL PROCESSING METHOD AND SIGNAL PROCESSOR
Document Type and Number:
Japanese Patent JP2015228640
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a signal processing method or the like, capable of eliminating an unwanted signal, more reliably.SOLUTION: A signal processing method for obtaining a signal, obtained by M pieces of directional sensor arrays A,A, to A, and an unwanted signal is eliminated from a reception signal which is a mixed signal of a target detection signal and an unwanted signal having a wider bandwidth than the target detection signal. The signal processing method includes an extraction process for extracting only a high frequency bandwidth or a low frequency bandwidth, or both signals as a reference signal, not including the target detection signal within the reception signal, a process of the sensor arrays A,A, to Ato determine an unwanted signal elimination weight for directing a null point toward an arrival direction of the reference signal, and a process for obtaining a signal from which an unwanted signal is eliminated by applying the unwanted signal elimination weight to the reception signal.
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Inventors:
FUJISHIMA YASUO
KENMOCHI KEIICHI
NAGAKURA HIROSHI
UCHIBORI HIROSHI
YAMADA TOSHIYUKI
KENMOCHI KEIICHI
NAGAKURA HIROSHI
UCHIBORI HIROSHI
YAMADA TOSHIYUKI
Application Number:
JP2015011581A
Publication Date:
December 17, 2015
Filing Date:
January 23, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
H04B7/10; H01Q3/26; H01Q3/36
Domestic Patent References:
| JP2013153298A | 2013-08-08 | |||
| JP2007006219A | 2007-01-11 | |||
| JP2013131992A | 2013-07-04 | |||
| JP2013170843A | 2013-09-02 |
Attorney, Agent or Firm:
Hiroaki Sakai
Jun Takamura
Jun Takamura