Radar apparatus and antenna apparatus
First Claim
Patent Images
1. A radar apparatus comprising:
- a transmission unit including a plurality of transmission antennas which are arranged at a predetermined transmission antenna interval, and configured to radiate a transmission signal using the plurality of transmission antennas;
a reception unit including a plurality of reception antennas which are arranged at a predetermined reception antenna interval, and configured to receive a reception signal when the transmission signal is reflected by an object, through the plurality of reception antennas; and
a signal processing unit configured to detect the object based on the reception signal received by the reception unit,wherein a plurality of virtual reception antennas are disposed according to an arrangement structure of the plurality of transmission antennas and the plurality of reception antennas so that at least two virtual reception antennas are disposed between every two adjacent reception antennas,wherein the reception antenna interval is equal to the transmission antenna interval multiplied by the number of transmission antennas,wherein the at least two virtual reception antennas are spaced apart from each other between every two adjacent reception antennas, andwherein an interval between reception end antennas including the plurality of reception antennas and the plurality of virtual reception antennas is determined based on the number of the transmission antennas and the reception antenna interval, so that the plurality of virtual reception antennas are dispersed in spaces between the reception antennas, wherein the interval between the reception end antennas is equal to the reception antenna interval divided by the number of the transmission antennas.
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Abstract
A radar apparatus includes: a transmission unit including a plurality of transmission antennas which are arranged at a predetermined transmission antenna interval, and configured to radiate a transmission signal using the plurality of transmission antennas; a reception unit including a plurality of reception antennas which are arranged at a predetermined reception antenna interval, and configured to receive a reception signal when the transmission signal is reflected by an object, through the plurality of reception antennas; and a signal processing unit configured to detect the object based on the reception signal received by the reception unit.
21 Citations
5 Claims
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1. A radar apparatus comprising:
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a transmission unit including a plurality of transmission antennas which are arranged at a predetermined transmission antenna interval, and configured to radiate a transmission signal using the plurality of transmission antennas; a reception unit including a plurality of reception antennas which are arranged at a predetermined reception antenna interval, and configured to receive a reception signal when the transmission signal is reflected by an object, through the plurality of reception antennas; and a signal processing unit configured to detect the object based on the reception signal received by the reception unit, wherein a plurality of virtual reception antennas are disposed according to an arrangement structure of the plurality of transmission antennas and the plurality of reception antennas so that at least two virtual reception antennas are disposed between every two adjacent reception antennas, wherein the reception antenna interval is equal to the transmission antenna interval multiplied by the number of transmission antennas, wherein the at least two virtual reception antennas are spaced apart from each other between every two adjacent reception antennas, and wherein an interval between reception end antennas including the plurality of reception antennas and the plurality of virtual reception antennas is determined based on the number of the transmission antennas and the reception antenna interval, so that the plurality of virtual reception antennas are dispersed in spaces between the reception antennas, wherein the interval between the reception end antennas is equal to the reception antenna interval divided by the number of the transmission antennas. - View Dependent Claims (2, 3, 4)
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5. An antenna apparatus for signal transmission/reception, comprising:
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a transmission antenna unit including a plurality of transmission antennas arranged at a predetermined transmission antenna interval; and a reception antenna unit including a plurality of reception antennas arranged at a reception antenna interval which is determined on the transmission antenna interval, wherein a plurality of virtual reception antennas are disposed according to an arrangement structure of the plurality of transmission antennas and the plurality of reception antennas so that at least two virtual reception antennas are disposed between every two adjacent reception antennas, wherein the reception antenna interval is equal to the transmission antenna interval multiplied by the number of transmission antennas, wherein the at least two virtual reception antennas are spaced apart from each other between every two adjacent reception antennas, and wherein an interval between reception end antennas including the plurality of reception antennas and the plurality of virtual reception antennas is determined based on the number of the transmission antennas and the reception antenna interval, so that the plurality of virtual reception antennas are dispersed in spaces between the reception antennas, wherein the interval between the reception end antennas is equal to the reception antenna interval divided by the number of the transmission antennas.
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Specification