Abstract
A telemetry microphone system (Telemike) has been developed, which can be mounted on the bat’s head, to measure acoustic characteristics of emitted pulses and returning echoes. The system allows us to monitor what the bat listens to during its flight. A high-speed video camera system has been also adopted together with the Telemike to trace positions in space of the flying bat for analyzing temporal pulse emission patterns. With those devices, how the CF-FM bats execute parallel time-sharing real-time processing during their flight can be investigated. Doppler-shift compensation, echo amplitude compensation and processing for multiple target detections were observed. Some of the evidence found by the Telemike will be introduced and discussed. [Work partly supported by the Innovative Cluster Creation Project promoted by MEXT and by a grant to RCAST at Doshisha University from MEXT.]
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