Yile Zhang

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The phase difference principle is widely used nowadays to sonar systems used for sea floor bathymetry. The main drawback of this method is that the phase difference is measured with the problem of ambiguity. Hence, a given echo record versus time may be affected by several phase jumps. Here we deal with a new processing to remove this ambiguity which base(More)
This paper deals with an improved processing for differential phase estimation of multibeam echosounder. In order to decreases noise and increase phase difference measurement precision the low pass filter is often used. In traditional method the filter bandwidth is fixed which often selected by experience. The main drawback of this fix bandwidth filter is(More)
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