A Design of Low Noise Underwater Acoustic Signal Circuit
This paper mainly introduces a signal processing circuit of hydrophone,it mainly includes a front amplifier circuit,a fourth order bandpass filter circuit and an amplifier circuit.The circuit uses ADI,s low noise,low power AD8605 chip and AD8608 chip.The gain of the circuit is 60 dB,the operating bandwidth is 200 Hz,The equivalent capacitance input noise is low.By amplifying and filtering the underwater acoustic signal effectively,the target signal can be effectively proposed from the noise signal.
fourth order bandpass filter circuitunderwater acoustic signallow noiselow power consumption
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