Vehicle radar for excluding a vehicle changing a lane from targets to track
First Claim
1. A vehicle radar, provided on a vehicle, to calculate a relative distance and a relative speed between said vehicle and each of a plurality of target objects by transmitting forwardly a frequency modulated carrier wave and receiving the carrier wave reflected by each of said target objects, said vehicle radar comprising:
- certainty level calculating means for calculating a certainty level, represented by probability of existence of said target objects, the certainty level being calculated based on a relationship between a current condition of detection of each of said target objects and a previous condition of detection of each of said target objects; and
certainty level changing means for changing the certainty level of one of said target objects when a determination is made that said one of said target objects moves away from a lane in which said vehicle is moving so that said one of said target objects are excluded from targets to track.
1 Assignment
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Accused Products
Abstract
A vehicle radar includes a vehicle in front from being a target when the vehicle shifts to another lane by decreasing certainty of the vehicle as the target. The vehicle radar calculates a relative distance and a relative speed between each of target objects and a vehicle on which the vehicle radar is provided by transmitting forwardly a frequency modulated carrier wave and receiving the carrier wave reflected by each of the target objects. A certainty level represented by probability of existence of the target objects is calculated based on a relationship between a currently detected condition of the target objects and a previously detected condition of the target objects. The certainty level of the target objects is changed when it is determined that the target objects move away from a lane in which the vehicle is moving so that the target objects are excluded from targets to track.
73 Citations
12 Claims
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1. A vehicle radar, provided on a vehicle, to calculate a relative distance and a relative speed between said vehicle and each of a plurality of target objects by transmitting forwardly a frequency modulated carrier wave and receiving the carrier wave reflected by each of said target objects, said vehicle radar comprising:
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certainty level calculating means for calculating a certainty level, represented by probability of existence of said target objects, the certainty level being calculated based on a relationship between a current condition of detection of each of said target objects and a previous condition of detection of each of said target objects; and certainty level changing means for changing the certainty level of one of said target objects when a determination is made that said one of said target objects moves away from a lane in which said vehicle is moving so that said one of said target objects are excluded from targets to track. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification