发明名称 |
APPARATUS FOR CALIBRATING ARRAY ANTENNA SYSTEM AND METHOD THEREOF |
摘要 |
An error calibrating apparatus of an array antenna system according to an exemplary embodiment of the present invention is an error calibrating apparatus of an array transmitting antenna system having a plurality of array antennas and includes a calibrating signal generator which generates an error calibrating signal as a single frequency signal, in an area which does not interfere with a passband of a transmitted signal; an array RF transmitter which upwardly converts the transmitted signal into an RF band to transmit the signal to the plurality of array antennas; an error calibration estimator which correlates the error calibrating signal and the receiving single frequency signal received by passing through the array RF transmitter to estimate a transfer function of the array RF transmitter and extract a filter coefficient using the estimated transfer function; and a complex filter which calibrates an error of the transmitted signal by applying the filter coefficient to output the corrected transmitted signal to the array RF transmitter. |
申请公布号 |
US2016218428(A1) |
申请公布日期 |
2016.07.28 |
申请号 |
US201614993502 |
申请日期 |
2016.01.12 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
JUNG Jae Ho;KWON Heon Kook;PARK Bong Hyuk |
分类号 |
H01Q3/26 |
主分类号 |
H01Q3/26 |
代理机构 |
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代理人 |
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主权项 |
1. An error calibrating apparatus of an array transmitting antenna system having a plurality of array antennas, the apparatus comprising:
a calibrating signal generator which generates an error calibrating signal as a single frequency signal, in an area which does not interfere with a passband of a transmitted signal; an array RF transmitter which upwardly converts the transmitted signal into an RF band to transmit the signal to the plurality of array antennas; an error calibration estimator which correlates the error calibrating signal and the receiving single frequency signal received by passing through the array RF transmitter to estimate a transfer function of the array RF transmitter and extract a filter coefficient using the estimated transfer function; and a complex filter which calibrates an error of the transmitted signal by applying the filter coefficient to output the corrected transmitted signal to the array RF transmitter. |
地址 |
Daejeon KR |