Invention Grant
- Patent Title: Spread spectrum radar apparatus, method for determining virtual image, and method for suppressing virtual image
- Patent Title (中): 扩频雷达装置,虚像的确定方法,虚拟图像抑制方法
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Application No.: US12678586Application Date: 2008-07-28
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Publication No.: US08018372B2Publication Date: 2011-09-13
- Inventor: Noboru Negoro , Takeshi Fukuda , Hiroyuki Sakai
- Applicant: Noboru Negoro , Takeshi Fukuda , Hiroyuki Sakai
- Applicant Address: JP Osaka
- Assignee: PANASONIC Corporation
- Current Assignee: PANASONIC Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2007-244014 20070920
- International Application: PCT/JP2008/002002 WO 20080728
- International Announcement: WO2009/037802 WO 20090326
- Main IPC: G01S13/58
- IPC: G01S13/58

Abstract:
The spread spectrum radar apparatus in the present invention (i) includes: a transmission code generator (110); a reception code generator (121) generating a reception code obtained by delaying a transmission code; a spread modulator (112) spread-modulating a signal generated by a local oscillator (111) using the transmission code; a transmission antenna (113) transmitting the spread-modulated signal; a reception antenna (120) receiving a signal; a spread demodulator (122) demodulating the signal using the reception code to provide a correlation signal; a mixer (123) mixing the correlation signal and the signal generated by the local oscillator (111) to generate a radar signal; a virtual image determining unit (130) determining a virtual image; and a radar signal calculation device (160) calculating the radar signal using a virtual image determination signal, and (ii) adds a calculation and an offset signal for suppressing a peak intensity of the virtual image when the virtual image occurs.
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