Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1996-10-29
1998-03-31
Pihulic, Daniel T.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
342107, G01S 1393
Patent
active
057343446
ABSTRACT:
A radar apparatus of an automotive vehicle includes a radar unit which radiates an electromagnetic wave to a target in a forward direction of the vehicle and receives reflection beams from the target to detect the target. A scanning control unit performs a beam scanning of the radar unit to the target so that the reflection beams during the beam scanning are received. A center direction determining unit detects a distribution pattern of the received reflection beams with respect to respective scanning angles of the radar unit, performs a similarity approximation of the distribution pattern by using an antenna directional gain pattern of the radar unit to produce an approximated distribution pattern, and determines a direction of a center of the target based on a peak of the approximated distribution pattern.
REFERENCES:
patent: 5023617 (1991-06-01), Deering
patent: 5534870 (1996-07-01), Avignon et al.
patent: 5585798 (1996-12-01), Yoshioka et al.
patent: 5598163 (1997-01-01), Cornic et al.
patent: 5612699 (1997-03-01), Yamada
Pihulic Daniel T.
Toyota Jidosha & Kabushiki Kaisha
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