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TRANSMITTING AND RECEIVING APPARATUS IN ADAPTIVE ARRAY ANTENNA SYSTEM CAPABLE OF REALTIME ERROR CALIBRATION AND METHOD THEREOF
TRANSMITTING AND RECEIVING APPARATUS IN ADAPTIVE ARRAY ANTENNA SYSTEM CAPABLE OF REALTIME ERROR CALIBRATION AND METHOD THEREOF
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机译:具有实时误差校正能力的自适应阵列天线系统中的发送和接收装置及其方法
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摘要
Disclosed are a transmitting and receiving apparatus and method in an adaptive array antenna system capable of real-time calibration. Transfer functions in the transmitting and receiving apparatus are estimated by injecting a calibration signal to each of transmit and receive channels and analyzing the signals that has passed through the transmit and receive channels. An RF CW sinusoidal signal of a single frequency can be used as the calibration signal to simplify a process of signal processing in a baseband. In addition, in the calibration of the receiving apparatus, gains of all receive channels are controlled using an identical signal. Thus, a relative transfer function characteristic of the receive channels is constant irrespective of the gains of the receivers.
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