Vehicle type radar device and vehicle type radar control method
First Claim
1. An automotive radar apparatus comprising:
- an antenna unit having a transmission antenna and a receiving antenna, and configured to adjust elevation angle of the transmission antenna,transmit radar beams through the transmission antenna in elevation angles of the transmission antenna, andreceive, through the receiving antenna, reflected radar beams transmitted in the elevation angles of the transmission antenna; and
a control unit configured todetermine a reflected radar beam having a power matched with a preset criteria, among the received reflected radar beams,select an elevation angle of transmitted radar beam corresponding to the determined reflected radar beam as a center angle of the elevation angles of the transmission antenna, andset a center radar beam corresponding to the center angle among the elevation angles of the transmission antenna, andset ranges of interest of a high radar beam and a low radar beam on the basis of the set center radar beam,whereinthe control unit comprises a signal intensity measurement part configured to measure powers of the received reflected radar beams,wherein the control unit is configured toset the high radar beam directed upward by a first certain angle and the low radar beam directed downward by a second certain angle on the basis of the set center radar beam, andwherein, when the high beam has the highest received power, the control unit is configured toset the high radar beam as a new center radar beam corresponding to the center angle among the elevation angles of the transmission antenna,set the set center radar beam as a new low radar beam, andset a new high radar beam directed upward by a certain angle on the basis of the new center radar beam.
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Accused Products
Abstract
Disclosed herein are an automotive radar apparatus and a method of controlling automotive radar, capable of recognizing a road gradient by easily adjusting a vertical scan angle based on intensities of radio waves received by radar of a vehicle traveling on a road to recognize a gradient of the road, and of preventing deterioration of detection performance by vertically adjusting a radio wave elevation angle of the radar so as to be suitable for the road gradient. The automotive radar apparatus includes an antenna unit transmitting radar signals or receiving reflected radar signals according to elevation angles of a transmission antenna or a receiving antenna, and a control unit searching a center angle based on received power according to the elevation angles to set a beam corresponding to the center angle as a center beam and setting ranges of interest on the basis of the center beam.
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Citations
11 Claims
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1. An automotive radar apparatus comprising:
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an antenna unit having a transmission antenna and a receiving antenna, and configured to adjust elevation angle of the transmission antenna, transmit radar beams through the transmission antenna in elevation angles of the transmission antenna, and receive, through the receiving antenna, reflected radar beams transmitted in the elevation angles of the transmission antenna; and a control unit configured to determine a reflected radar beam having a power matched with a preset criteria, among the received reflected radar beams, select an elevation angle of transmitted radar beam corresponding to the determined reflected radar beam as a center angle of the elevation angles of the transmission antenna, and set a center radar beam corresponding to the center angle among the elevation angles of the transmission antenna, and set ranges of interest of a high radar beam and a low radar beam on the basis of the set center radar beam, wherein the control unit comprises a signal intensity measurement part configured to measure powers of the received reflected radar beams, wherein the control unit is configured to set the high radar beam directed upward by a first certain angle and the low radar beam directed downward by a second certain angle on the basis of the set center radar beam, and wherein, when the high beam has the highest received power, the control unit is configured to set the high radar beam as a new center radar beam corresponding to the center angle among the elevation angles of the transmission antenna, set the set center radar beam as a new low radar beam, and set a new high radar beam directed upward by a certain angle on the basis of the new center radar beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling automotive radar, the method performed by an automotive radar apparatus comprising an antenna unit having a transmission antenna and a receiving antenna, and a control unit, the method comprising:
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transmitting radar beams through the transmission antenna in elevation angles of the transmission antenna; receiving, through the receiving antenna, reflected radar beams transmitted in the elevation angles of the transmission antenna; determining a reflected radar beam having a power matched with a preset criteria, among the received reflected radar beams; selecting an elevation angle of transmitted radar beam corresponding to the determined reflected radar beam as a center angle of the elevation angles of the transmission antenna; setting a center radar beam corresponding to the center angle among the elevation angles of the transmission antenna; setting ranges of interest of a high radar beam and a low radar beam on the basis of the set center radar beam; and transmitting, through the transmission antenna, the radar beams to the set ranges of interest or receiving, through the receiving antenna, the reflected radar beams from the set ranges of interest, wherein the setting the ranges of interest comprises setting the high radar beam directed upward by a first certain angle and the low radar beam directed downward by a second certain angle on the basis of the center radar beam, and wherein, when the high beam has the highest received power, the control unit; sets the high radar beam as a new center radar beam corresponding to the center angle among the elevation angles of the transmission antenna; sets the center radar beam as a new low radar beam; and sets a new high radar beam directed upward by the certain angle on the basis of the new center radar beam.
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Specification