Sonar Raw Data Recording System.
NAVY ELECTRONICS LAB SAN DIEGO CALIF
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This memorandum describes a proposed system for the recording and playback of sonar data. This proposal has grown out of instrumentation requirements for NEL studies on sonar target classification cues and is being published at this time to make it available to NEL personnel developing sonar raw data recording equipment and to the BUSHIPS Interlaboratory Committee on Sonar Raw Data Recording. Further distribution outside this Laboratory is not anticipated. A recorder-playback system capable of recording sonar signals and associated data for subsequent playback into sonar receiving equipment is urgently needed for sonar research, development, evaluation, and training. Equipment for such recording should be capable of operation on as many of the sonar systems currently in use by the Fleet as is possible and provide as complete data as is practicable. Wide dynamic range, frequency stability, gain stability, and versatility are the most significant design criteria. Equipment for recording sonar signals should obtain the signals in as raw form as practical, i.e., as soon after transduction as possible, to prevent prejudice of data by shipboard sonar and operator. Equipment should retain as much doppler information as possible for application to sonar processing equipments such as the RRI and ACIM now under development.
- Recording and Playback Devices
- Acoustic Detection and Detectors