Jang Jejin, Choi Jaehyuk, Lee Donghun, Mok Hyungsoo
Research and Development Division, Tin Technology Co., Ltd., Seongnam 13212, Republic of Korea.
Agency for Defense Development, Changwon 51678, Republic of Korea.
Sensors (Basel). 2023 Jul 24;23(14):6636. doi: 10.3390/s23146636.
Improving the operational efficiency and optimizing the design of sound navigation and ranging (sonar) systems require accurate electrical equivalent models within the operating frequency range. The power conversion system within the sonar system increases power efficiency through impedance-matching circuits. Impedance matching is used to enhance the power transmission efficiency of the sonar system. Therefore, to increase the efficiency of the sonar system, an electrical-matching circuit is employed, and this necessitates an accurate equivalent circuit for the sonar transducer within the operating frequency range. In conventional equivalent circuit derivation methods, errors occur because they utilize the same number of RLC branches as the resonant frequency of the sonar transducer, based on its physical properties. Hence, this paper proposes an algorithm for deriving an equivalent circuit independent of resonance by employing multiple electrical components and particle swarm optimization (PSO). A comparative verification was also performed between the proposed and existing approaches using the Butterworth-van Dyke (BVD) model, which is a method for deriving electrical equivalent circuits.
提高声呐系统的运行效率并优化其设计需要在工作频率范围内有精确的电等效模型。声呐系统中的功率转换系统通过阻抗匹配电路提高功率效率。阻抗匹配用于提高声呐系统的功率传输效率。因此，为了提高声呐系统的效率，采用了电匹配电路，这就需要在工作频率范围内有一个精确的声呐换能器等效电路。在传统的等效电路推导方法中，由于基于声呐换能器的物理特性，使用与声呐换能器谐振频率相同数量的RLC支路，会产生误差。因此，本文提出了一种通过使用多个电气元件和粒子群优化（PSO）来推导与谐振无关的等效电路的算法。还使用巴特沃思-范戴克（BVD）模型（一种推导电等效电路的方法）对所提出的方法和现有方法进行了对比验证。
