Radar apparatus for detecting a direction of a center of a target
First Claim
1. A radar apparatus of an automotive vehicle, comprising:
- radar means for radiating an electromagnetic wave to a target in a forward direction of the vehicle and for receiving reflection beams from the target to detect the target;
scanning control means for performing a beam scanning of the radar means to the target so that the reflection beams during the beam scanning are received; and
center direction determining means for detecting a distribution pattern of the received reflection beams with respect to respective scanning angles of the radar means, for performing a similarity approximation of the distribution pattern by using an antenna directional gain pattern of the radar means to produce an approximated distribution pattern, and for determining a direction of a center of the target based on a peak of the approximated distribution pattern.
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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.
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Citations
10 Claims
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1. A radar apparatus of an automotive vehicle, comprising:
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radar means for radiating an electromagnetic wave to a target in a forward direction of the vehicle and for receiving reflection beams from the target to detect the target; scanning control means for performing a beam scanning of the radar means to the target so that the reflection beams during the beam scanning are received; and center direction determining means for detecting a distribution pattern of the received reflection beams with respect to respective scanning angles of the radar means, for performing a similarity approximation of the distribution pattern by using an antenna directional gain pattern of the radar means to produce an approximated distribution pattern, and for determining a direction of a center of the target based on a peak of the approximated distribution pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification