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Parametric transmission for echo sounding and underwater communications involves maximising electroacoustic efficiency of transmission using switched power amplifiers
Parametric transmission for echo sounding and underwater communications involves maximising electroacoustic efficiency of transmission using switched power amplifiers
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机译:用于回声探测和水下通信的参数传输涉及使用开关功率放大器来最大化传输的电声效率
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摘要
The method involves stimulating a parametric transmission sound transducer (1) with high frequency electrical primary signals (101-10n) selected in time characteristic and spectrum. Optimally matched transmission signal shapes and spectra are generated in the low frequency range using non-linear interactions in water at each output point. The electroacoustic efficiency of transmission is maximised by using switched power amplifiers (31-3n) with optimised drive signals and with broadband compensated sound transducers. An Independent claim is also included for an arrangement for implementing the method.
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