초록 ▼

A radar system is described for use in vehicular applications. The radar system is particularly suited to backup warning systems and lane-change warning systems. The radar minimizes many of the problems found in the prior art by providing programmable delays and programmable gain. The radar uses a r

A radar system is described for use in vehicular applications. The radar system is particularly suited to backup warning systems and lane-change warning systems. The radar minimizes many of the problems found in the prior art by providing programmable delays and programmable gain. The radar uses a range search algorithm to detect and sort targets at various ranges within the field of view of the radar. Each target range corresponds to a particular delay and gain setting. The radar searches for targets at the various ranges by running a target search algorithm. For each target range, the search algorithm causes the proper time delay and gain setting. Targets within the selected range are detected and catalogued. Speed of the targets is obtained through Doppler processing. A display is used to warn the driver of the vehicle of the presence of targets at the various ranges. The warning may be visual and/or audible. When used in a lane-change system, issuance of an audible warning is based on the speed of the vehicle.

대표청구항 ▼

1. A lane-change aid system for providing information to a driver of a vehicle about objects in a side-object region, said system comprising:a radar sensor unit configured to provide radar target information to a user interface, said radar sensor configured to discriminate between multiple targets b

1. A lane-change aid system for providing information to a driver of a vehicle about objects in a side-object region, said system comprising:a radar sensor unit configured to provide radar target information to a user interface, said radar sensor configured to discriminate between multiple targets by having a programmable maximum detection range and a programmable minimum detection range and to use said programmable maximum detection range and said programmable minimum detection range to sweep through a desired region of detection ranges to search for targets in each detection range, thereby discriminating between multiple targets at different detection ranges; and a speedometer pick-up configured to provide vehicle speed information to said user interface, said user interface providing warnings to the driver according to said vehicle speed information and a range to a detected target.