Transmit: Signal Generator• Provides drive signals to the high powertransmitter• Controls:– Signal waveform generation• amplitude• phase (frequency)– Multiple transmit sequencing– Transmit beam shaping– Transmit beam steering– Own-Doppler nullification (ODN)28Applied Research LaboratoryTransmit: High Power Transmitters• Converts low level input signals to high powerdrive signals– Input from the signal generator– Output drives the transducer elements• Considerations:– High power output– High efficiency– Variable load impedance when used in arrays29Applied Research LaboratoryReceive: Signal Conditioners• Peak signal limiting• Impedance matching• Pre-amplification• Band pass filtering

Interface between the ocean and the sonar electronics
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