• The result is accord with geological sample and sediment chart, so this method can be applied on sediment classification of narrow-band pulse echo sound signal.

    分析结果地质采样结果海图吻合,说明本文提出的方法应用于窄带脉冲信号的海底底质分类是适用的。

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  • M sequence signal can be chosen as the receiving deterministic pulse signal when using acoustic vector to determine the direction of the sound source. It possesses favorable anti-multipath capability.

    利用矢量接收脉冲信号确定声源方位,脉冲信号形式可以考虑采用M序列调相信号,具有良好抗多途效应。

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  • This paper studies the determination of datum station with GPS and the computation problems of the sound pulse signal received by the datum station of echo pulse receiver under water.

    研究GPS测定坐标,分析了水基阵所接收脉冲信号的处理。

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  • The field pulse signal forming and width control circuit generates a field pulse signal A with the width being controlled by the accompanying sound electric level.

    脉冲信号形成控制电路产生宽度伴音电平控制的场脉冲信号A

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  • The field pulse signal forming and width control circuit generates a field pulse signal A with the width being controlled by the accompanying sound electric level.

    脉冲信号形成控制电路产生宽度伴音电平控制的场脉冲信号A

    youdao

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