상세정보
등록 실시간 오차 보정 기능을 가진 적응 배열 안테나 시스템에서의 송수신 장치 및 그 방법
- 출원번호
- 10974272 (2004.10.26)
- 공개번호
- 20050140546 (2005.06.30)
- 등록번호
- 7205936 (2007.04.17)
- 출원국
- 미국
- 협약과제
- 03MM1100, 4세대 이동통신 기술개발, 한기철
- 초록
- 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.
- KSP 제안 키워드
- Adaptive array, Adaptive array Antenna, Array antenna, Array antenna system, Real-Time, Real-Time calibration, Signal Processing, Sinusoidal signal, Time calibration, distributed antenna systems(DAS), relative transfer function(RTF), single frequency, transfer function(DTF)