Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
レーダ
Document Type and Number:
Japanese Patent JP4353184
Kind Code:
B2
Abstract:
A radar wherein, in accordance with a peak frequency f 1[ t-nT] of a first projecting portion at a predetermined timing t-nT, a center frequency fr[t] of peak frequencies of first and second projecting portions at a current measurement timing t is predicted, and f 1[ t] and f 2[ t] in which (f 1[ t]+f 2[ t])/2 approximates the predicted fr[t] is extracted as a pair candidate. In addition, f 1[ t] and f 2[ t] in which Doppler shift frequency is substantially equal to a Doppler shift frequency calculated from the peak frequency f 1[ t-nT] of the first projecting portion and the peak frequency f 2 [t-nT] of the second projecting portion are selected.

Inventors:
Toru Ishii
Nakanishi Moto
Application Number:
JP2005516800A
Publication Date:
October 28, 2009
Filing Date:
November 08, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
G01S13/34; G01S15/34; G01S15/58
Domestic Patent References:
JP8262130A
JP3305624B2
JP9504612A
Foreign References:
WO2002067010A1
Attorney, Agent or Firm:
Kaede International Patent Office
Hisao Komori
Tatsuichi Murakami