Radar apparatus and computer program
First Claim
Patent Images
1. A radar apparatus comprising:
- a transmission antenna configured to transmit an electromagnetic wave;
a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object;
a reception wave acquisition section configured to acquire the received electromagnetic wave at specific intervals in time;
a reception power calculator configured to compute the power of the received electromagnetic wave as a function of the acquisition time number by the reception wave acquisition section;
a representative point extractor configured to extract plural representative points from the function; and
a determination section configured to determine whether or not the object is an overhead object positioned higher than the optical axis of the receiving antenna based on the representative points.
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Abstract
According to embodiments, there is provided a radar apparatus including:
- a transmission antenna configured to transmit an electromagnetic wave;
- a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object;
- a reception wave acquisition section configured to acquire the received electromagnetic wave at specific intervals in time;
- a reception power calculator configured to compute the power of the received electromagnetic wave as a function of the acquisition time number by the reception wave acquisition section;
- a representative point extractor configured to extract plural representative points from the function; and
- a determination section configured to determine whether or not the object is an overhead object positioned higher than the optical axis of the receiving antenna based on the representative points.
61 Citations
36 Claims
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1. A radar apparatus comprising:
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a transmission antenna configured to transmit an electromagnetic wave; a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object; a reception wave acquisition section configured to acquire the received electromagnetic wave at specific intervals in time; a reception power calculator configured to compute the power of the received electromagnetic wave as a function of the acquisition time number by the reception wave acquisition section; a representative point extractor configured to extract plural representative points from the function; and a determination section configured to determine whether or not the object is an overhead object positioned higher than the optical axis of the receiving antenna based on the representative points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer program for causing a computer to execute processing, the processing comprising:
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acquiring an electromagnetic wave received by a reception antenna at specific intervals in time; computing the power of the received electromagnetic wave as a function of the acquisition time number; extracting plural representative points from the function; and determining whether or not the object is an overhead object positioned higher than the optical axis of the receiving antenna based on the representative points.
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21. A radar apparatus comprising:
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a transmission antenna configured to transmit an electromagnetic wave; a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object; a separation distance detector configured to detect separation distance to the object based on the received electromagnetic wave; a reception power calculator configured to compute the power of the received electromagnetic wave as a function of the detected separation distance; an area calculator configured to compute area of a region in a specific separation distance segment defined by a curve representing the function as one boundary; and a detection section configured to determine whether or not the object is a low height object based on the computed area. - View Dependent Claims (22, 25, 26, 27, 28, 29)
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23. A radar apparatus comprising:
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a transmission antenna configured to transmit an electromagnetic wave; a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object; a reception power calculator configured to compute the power of the received electromagnetic wave as a function of time; an area calculator configured to compute area of a region in a specific time segment defined by a curve representing the function as one boundary; and a detection section configured to determine whether or not the object is a low height object based on the computed area. - View Dependent Claims (24, 30, 31, 32, 33, 34)
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35. A computer program for causing a computer to perform processing, the processing comprising:
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detecting a separation distance to an object based on an electromagnetic wave received by a reception antenna; computing the power of the received electromagnetic wave as a function of the detected separation distance; computing area of a region in a specific separation distance segment defined by a curve representing the function as one boundary; and determining whether or not the object is a low height object based on the computed area.
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36. A computer program for causing a computer to perform processing, the processing comprising:
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computing the power of a received electromagnetic wave as a function of time; computing area of a region in a specific time segment defined by a curve representing the function as one boundary; and determining whether or not the object is a low height object based on the computed area.
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Specification