Title:
移動体電話局から送信される信号を用いた受動式移動体検知システム及び方法
Document Type and Number:
Japanese Patent JP2004537730
Kind Code:
A
Abstract:
A passive object detection system ( 1 ) comprises first and second antennas ( 4, 6 ) and a processor ( 8 ). The first antenna ( 4 ) is adapted to receive a signal transmitted by a mobile telephone base station; the second antenna ( 6 ) is adapted to receive the signal transmitted by a mobile telephone base station ( 2 ) after it has been reflected off an object ( 3 ) and the processor compares the signal received from the mobile telephone base station with the signal reflected from the object to derive speed or position information relating to the object therefrom.
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Inventors:
Lloyd, Peter, Gregory
Harris, Gareth, Liam
Stotthard, Bryan, Philip
Harris, Gareth, Liam
Stotthard, Bryan, Philip
Application Number:
JP2003517610A
Publication Date:
December 16, 2004
Filing Date:
July 25, 2002
Export Citation:
Assignee:
Roke Manor Research Limited
International Classes:
G01S13/46; G01S13/00; G01S13/58; G01S13/92; H04W24/08; H04W64/00; (IPC1-7): G01S13/46; H04Q7/34
Attorney, Agent or Firm:
Koichiro Kato