Abstract
본 논문은 능동 소나 송신기의 효율적인 회전 송신빔 구동을 위하여 부하인 원통형 배열센서의 회전 방위별 동적 임피던스 특성을 실험적으로 분석하고 최대 전력이 부하에 효과적으로 전송되도록 송신기의 출력을 실시간으로 제어하는 기법에 관한 연구이다. 회전 송신빔 구동시, 전기적, 음향적 경계조건에 의해 발생하는 과부하 조건에서 배열센서의 실시간 임피던스 변화와 송신기의 출력 거동 특성을 분석하였다. 그 결과로부터 과도 특성에서도 송신 중단 없이, 송신기와 부하를 보호하면서 송출되는 전력량을 최대화할 수 있는 새로운 송신 출력 제어 기법을 제안하고 실험을 통하여 제안된 기법을 검증하였다. This paper presents a study on the experimental analysis of the impedance characteristics according to the rotational direction of the transmission beam of a cylindrical sensor array. Besides, this suggests a real time control technique of the transmitter output for the effective maximum power transmission, in order to drive efficiently the rotational transmission beam of the active sonar transmitter. The output characteristics of the transmitter and the real-time impedance variations of the sensor array are analyzed under the overload conditions. They are caused by electric and acoustic boundary conditions when the rotational transmission beam is operated. From these results, a new output control method of the transmitter is proposed to protect the transmitter and its loads. It can maximize the output power without the transmission pause even if the transient phenomena occur. The proposed technique is verified from the experiment.
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