A METHOD FOR AN EQUIVALENT CIRCUIT PARAMETER ESTIMATION OF A TRANSDUCER AND A SONAR SYSTEM USING THEREOF

摘要

PURPOSE: A method for the estimating equivalent model parameter of a transducer and a sonar system using the same are provided to accurately execute modeling by considering an interference effect between resonance modes in an acoustic wave band and a supersonic wave band. CONSTITUTION: A sonar system comprises a transmitter(110), an impedance matching circuit(230), and a transducer(220). The transmitter is modeled to input power source and input impedance. The transducer changes an electric signal of the transmitter into a sound wave or changes an external electric signal into the electric signal. The impedance matching circuit transmits a power amount between transmitters to the transducer. The transducer estimates individual mode impedance and entire mode impedance from multiplex mode impedance data. The transducer is modeled an electrical equivalent model having a plurality of shifts corresponding to each mode by considering the interference amount of an adjacency mode.