发明申请
- 专利标题: Radar apparatus and signal processing method
- 专利标题(中): 雷达装置和信号处理方法
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申请号: US11979222申请日: 2007-10-31
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公开(公告)号: US20080122680A1公开(公告)日: 2008-05-29
- 发明人: Mitsutoshi Morinaga , Keiichiro Nagatsuka
- 申请人: Mitsutoshi Morinaga , Keiichiro Nagatsuka
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 优先权: JP2006-316978 20061124
- 主分类号: G01S13/58
- IPC分类号: G01S13/58 ; G01S13/08 ; G01S7/00
摘要:
The radar apparatus of the present invention can obtain distance to a target and speed with higher accuracy even when multiple targets are running within a detecting field of a radar. The radar apparatus can transmit a radio wave by alternately switching a section having a frequency slope and a section having no frequency slope with the radar for simultaneously transmitting a couple of frequencies having a frequency difference. Measurement of distance to the target and relative speed is conducted in the above two sections, results of measurement are compared with each other in the adjacent sections, and the result of measurement is determined correct only when there is no inconsistency in these measurement results.
公开/授权文献
- US07508337B2 Radar apparatus and signal processing method 公开/授权日:2009-03-24