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Title

Sonar signal waveform impact on interference resistance

Authors

Victor Pjachev, Valeriy Valeyev

Summary

maintaining range resolution, it is therefore desirable to in- The given work investigates the influence of sonar signal crease the bandwidth of the signal without a corresponding waveform type on the performance of slow-moving targets decrease in the duration of the signal.Thisimplies that the detection in the presence of ambient noise, interfering reflec- time-bandwidth product of the transmitted signal must be tions, mutual interference of several sonar systems operat- made larger than unity.Modulating the frequency or the am- ing in the same water area.plitude of the transmitted waveform will result in an in- The continuous wave CW and frequency modulated creased time-bandwidth product.Amplitudeinves- more common to use frequency modulated signals.tigation of active sonar pulse types is based on the analysis

Keywords

resolution, investigates, bandwidth corresponding, performance slow-moving, signalthis, time-bandwidth, transmitted, interference, frequency, areaplitude continuous, productamplitude modulation, waveforms, efficiency, modulationthe, signalstigation,

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