Vehicle sensor system and process
First Claim
1. A process of determining target parameters of an object within a field of detection of an automotive radar system, said process comprising the steps of:
- (a) establishing a target range from a sequence of ranges provided by an automotive radar system secured to a vehicle;
(b) dwelling on said target range for an initial dwell time to obtain radar data;
(c) determining if said radar data corresponds to the presence of an object or to the absence of an object at said target range based on probability density distributions of an object being present and being absent at said target range, and if such said determination cannot be made, then repeating steps (b) and (c) until said determination can be made;
(d) if said radar data is determined to correspond to the presence of an object in step (c), then dwelling at said target range for an extended dwell time to obtain additional radar data for determining the target parameters of said object before proceeding to step (e); and
(e) establishing the next of said sequence of ranges as the target range before reiterating steps (b)-(e).
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Accused Products
Abstract
A process of determining target parameters of an object within a field of detection of an automotive radar system, the process comprising the steps of: (a) establishing a target range from a sequence of ranges; (b) dwelling on the target range for an initial dwell time to obtain sensor data; (c) determining if the sensor data corresponds to the presence of an object or to the absence of an object at the target range based on probability density distributions of an object being present and being absent at the target range, and if such the determination cannot be made, then repeating steps (b)-(c) until the determination can be made; (d) if the sensor data is determined to correspond to the presence of an object in step (c), then dwelling at the target range for an extended dwell time to obtain additional sensor data for determining the target parameters of the object before proceeding to step (e); and (e) establishing the next of the sequence of ranges as the target range before reiterating steps (b)-(e).
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Citations
24 Claims
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1. A process of determining target parameters of an object within a field of detection of an automotive radar system, said process comprising the steps of:
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(a) establishing a target range from a sequence of ranges provided by an automotive radar system secured to a vehicle; (b) dwelling on said target range for an initial dwell time to obtain radar data; (c) determining if said radar data corresponds to the presence of an object or to the absence of an object at said target range based on probability density distributions of an object being present and being absent at said target range, and if such said determination cannot be made, then repeating steps (b) and (c) until said determination can be made; (d) if said radar data is determined to correspond to the presence of an object in step (c), then dwelling at said target range for an extended dwell time to obtain additional radar data for determining the target parameters of said object before proceeding to step (e); and (e) establishing the next of said sequence of ranges as the target range before reiterating steps (b)-(e). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for sensing objects about the perimeter of a vehicle, said system comprising at least one computer being configured to perform the following steps:
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(a) establishing a target range from a sequence of ranges provided by an automotive radar system secured to a vehicle; (b) dwelling on said target range for an initial dwell time to obtain radar data; (c) determining if said radar data corresponds to the presence of an object or to the absence of an object at said target range based on probability density distributions of an object being present and being absent at said target range, and, if the presence or absence of said object cannot be determined, repeating steps (b)-(c); (d) if said radar data corresponds to the presence of an object as determined in step (c), then dwelling at said target range for an extended dwell time to obtain additional radar data for determining the target parameters of said object before proceeding to step (e); and (e) establishing the next of said sequence of ranges as the target range before reiterating steps (b)-(e).
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23. A system in combination with a vehicle radar system for sensing objects about the perimeter of a vehicle, said system comprising:
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a data processor; an input for receiving radar data from said vehicle radar system; memory operatively connected to said data processor, said memory containing instructions comprising at least; a detection module for establishing a target range from a sequence of ranges, instructing said vehicle radar system to dwell on said target range for an initial dwell time to obtain radar data, and determining if said radar data corresponds to the presence of an object or to the absence of an object at said target range based on probability density distributions of an object being present and being absent at said target range, and repeating the initial dwell time to collect more radar data if the presence or absence of said object cannot be determined; a collection module for dwelling at said target range for an extended dwell time after said detection module determine an object to be present to obtain additional radar data for determining the target parameters of said object; and a state estimation module for determining target parameters of said object from said addition radar data.
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24. A vehicle comprising:
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a vehicle radar system for radar data, said system comprising; a data processor; an input for receiving radar data from said vehicle radar system; memory operatively connected to said data processor, said memory containing instructions comprising at least; a detection module for establishing a target range from a sequence of ranges, instructing said vehicle radar system to dwell on said target range for an initial dwell time to obtain radar data, and determining if said radar data corresponds to the presence of an object or to the absence of an object at said target range based on probability density distributions of an object being present and being absent at said target range, and repeating the initial dwell time to collect more radar data if the presence or absence of said object cannot be determined; a collection module for dwelling at said tar get range for an extended dwell time after said detection module determine an object to be present to obtain additional radar data for determining the target parameters of said object; and a state estimation module for determining target parameters of said object from said addition radar data.
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Specification