Title:
RADAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/008110
Kind Code:
A1
Abstract:
To appropriately calculate and correct the amount of phase shift in the phase component of a correlation value between a receipt signal received by each of a plurality of receiver antennas and a transmission signal with minimal influence on measurement performance, and to thereby inhibit a degradation in accuracy in estimating the angle of arrival of a target. The disclosed technique involves: transmitting a signal intermittently according to a transmission cycle consisting of a predetermined transmission period and a non-transmission period; receiving the signal reflected from a target with receiver antennas which are selected in turn by a switch section; and detecting the target from the reflected signal. A high-frequency transmission signal attenuated during the transmission period and a receipt signal received during the non-transmission period by a selected receiver antenna are combined together. A correlation value between a reference transmission signal, which is identical to the transmission signal, and the receipt signal in the combined signal is calculated, and the amount of phase shift in an arbitrarily chosen receiver antenna is calculated from the correlation value of a reference receiver antenna, which is one of the plurality of said receiver antennas, and the correlation values of the other receiver antennas. The phase component of the correlation value of the arbitrarily chosen receiver antenna is corrected on the basis of the amount of phase shift.
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Inventors:
KISHIGAMI, Takaaki (())
岸上 高明 (())
MUKAI, Hirohito (())
岸上 高明 (())
MUKAI, Hirohito (())
Application Number:
JP2011/003786
Publication Date:
January 19, 2012
Filing Date:
July 01, 2011
Export Citation:
Assignee:
Panasonic Corporation (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
KISHIGAMI, Takaaki (())
岸上 高明 (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
KISHIGAMI, Takaaki (())
岸上 高明 (())
International Classes:
G01S7/40; G01S7/02
Attorney, Agent or Firm:
OGURI, Shohei et al. (Eikoh Patent Firm, Toranomon East Bldg. 10F 7-13, Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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Claims:
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