The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2002
Filed:
Nov. 22, 2000
Fujitsu Ten Limited, Kobe, JP;
Abstract
A target is explored by transmitting an exploration signal at a certain angle while scanning an antenna In the go and return exploration the angle for transmitting the exploration signal is shifted. It is possible to detect the direction of the target with the same accuracy as that in exploration with a more minute angle difference, by combining the exploration results with the angle shifted in a plurality of scans. Relative travel of the target that accompany a plurality of scans is considered as a Doppler shift and a combination of data is used considering the frequency shift. Data that cannot be combined is treated as an unwanted reflective object and the position where unwanted reflecting objects assemble is obtained and the position is determined as a shoulder. The height of a stationary target is determined from the variation in the reflected signal level in an approach to the stationary target.