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- W2051241309 abstract "The new digital architecture in sonar technology designed by BioSonics, Inc. has many advantages when compared with traditional analog technology. The echo signal is digitized inside the transducer at a very low signal level. This removes problems of coupled or induced noise when sending the signal through long lines. The system operates with a 3 to 4 dB noise figure in all modes of operation. Another important feature of the system is very high dynamics (>132 dB continuous). This allows receiving of low signals from small targets (i.e., plankton) simultaneously with high level signals (i.e., bottom) without saturation. The echo signal is sampled at a high rate and stored with high accuracy (0.013%) and high resolution (1.8 cm or less). The sonar is PC controlled for simple operation. The large dynamic range means no adjustment in system gain or transmit power. The data acquisition system is virtually automatic because most decisions are in postprocessing. Raw data is stored on the PC’s hard drive or similar device. The sonar is available in a wide frequency range (38 kHz–1 MHz) and single, dual, or split beam transducer configuration depending on the application, i.e., biomass, layering effects, bottom typing, etc." @default.
- W2051241309 created "2016-06-24" @default.
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- W2051241309 date "1998-05-01" @default.
- W2051241309 modified "2023-09-23" @default.
- W2051241309 title "The digital transducer, new sonar technology" @default.
- W2051241309 doi "https://doi.org/10.1121/1.422579" @default.
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