Title:
多開口アンテナから同時に集められた信号サンプルを使用してソースの角度及び距離を受動的に評価するシステム及び方法
Document Type and Number:
Japanese Patent JP2008544251
Kind Code:
A
Abstract:
A system and method for passively estimating range and angle of a source are disclosed. The source may be any wave source including radio-frequency (RF), optical, acoustic or seismic sources. In some RF embodiments, the system includes a single aperture antenna to simultaneously receive RF signals from the RF source through a plurality of sub-apertures, and a signal processor to perform a proximity test using samples simultaneously collected from the sub-apertures to determine whether or not to calculate angle and range estimates to the source based on either a curved wavefront assumption or a planar wavefront assumption.
Inventors:
Shover, Michael Bee.
Application Number:
JP2008516927A
Publication Date:
December 04, 2008
Filing Date:
June 05, 2006
Export Citation:
Assignee:
Raytheon Company
International Classes:
G01S3/46; G01S19/22; G01S11/12; G01S11/14; G01S19/47
Domestic Patent References:
| JP2001324557A | 2001-11-22 | |||
| JPS6391684A | 1988-04-22 | |||
| JPH02297088A | 1990-12-07 | |||
| JPH0882667A | 1996-03-26 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama