CIRCUIT AND METHOD FOR SYNTHESIZING UNDERWATER SOUND REFLECTING SIGNALS

摘要

PURPOSE: A circuit for synthesizing underwater sound reflecting signals is provided to synthesize diverse reflecting signals with some program corrections by using a signal processing processor. CONSTITUTION: An analog/digital converter(U1) converts an underwater sound signal into digital data. A memory(U2) stores the output of the analog/digital converter(U1), a reflecting signal synthesis program, and various factors to be considered in synthesizing the reflecting signals. A signal processing processor(U5) synthesizes reflecting signal data in application of the time delay and weight to the output of the analog/digital converter(U1) according to the stored reflecting signal synthesis program. A digital/analog converter(U4) converts the reflecting signal data to a reflecting signal.